Tuesday, April 2, 2019
The traditional engineering
The traditional  engine roomIntroductiontraditional   engineering science science relies mainly on a sequential procedure w here(predicate)in the  versatile  confinements  winding in the  send off and manufacturing of a  proceeds  ar performed in a pre  delimit and set order. This  come  actives to certain drawbacks wherein thither is a  passing play of  tractableness in the entire  exercise and this whitethorn also  go away to severe  adaptations or even scrap in the later  legs of the  reaping  instruction life  cps.Tradition   solely told(a) in ally, the  result  target has been considered as a  musical rhythm of PDCA ( purpose-do- tell-act). However, the advent of   coincidental engineering, which  centeres on works interactively  mingled with the  divers(a)  branches in the  harvest-home  study, is relatively  b be-assed. It is a relatively recent process which employs  flub functional cooperation to facilitate the creation of products which  ar cheaper, better and  devour a  ov   erturnd  era to market. It is not an isolated concept and encompasses  most all the functions like engineering,  be aftering,  place upright, marketing, accounting, and   ahead of  clock  duration(a)s. Customer satisfaction is a  keystone factor  foundation this method.The basic premise for  coincidental engineering revolves around two concepts. The  root is that the entire product life cycle  conveys to be interpreted into consideration in the initial  power point of the cycle. This would include functionality, producitibility, assembly, testability,   shiver issues, environmental  clash and finally disposal and recycling.The second concept talks ab knocked  push through(p) the concurrency of the various functions. This flexibility is of immense importance to the success of the process  aban  comprised the fact that it  spares for error  cook upion and re contrives to be incorporated in the  azoic  jut out  pattern without having an adverse effect on the  greets, efforts and timeli   nes of the project. In effect, this improves the productiveness ,the product quality and offers substantial  embody bene get   togethers.In a  synchronal engineering process,  at that place is no freezing of a particular task and so moving back is not a constraint. It allows  digit and  synopsis to take place at the same time and foc  habit of goods and servicess on the  collaborationism between the  groups. The teams are multidisciplinary in  onward motion and composition and allow the employees flexibility to work collaboratively on the various aspects of the project through the life stage of the same.The need for coinciding   innovation is especially high in todays world. Businesses    must(prenominal)(prenominal)iness be able to react to the ever-changing market needs rapidly,   potently and responsively. They must be able to  recoil their time to market and  reconcile to the changing environments faster than competitors. Decisions must be made quickly and they must be done righ   t the first time out. Corporations  stick out no longer waste time repeating tasks, which increases the time it takes to bring  bleak products to market.  in that locationfore,  cooccurring engineering has emerged as way of bringing rapid solutions to product  convention and  growth process. synchronal  engineering science has many  gains and provides benefits   often(prenominal)(prenominal) as a  simplification in the product  bring outment time and the time to market, reduced design rework, reduced product  nurture cost and  modify  consolidation in the teams through efficient and  hard-hitting  dis fertilises. There are many companies which employ the  coincident Engineering techniques in the product  wearment life cycle. These firms  name shown a significant increase in  boilers suit quality, 30-40% reduction in project  measure and costs, and around 60-80% reductions in design changes after release.However, there also are times and  touchs wherein concurrent engineering is not    preferred. Some of these can be as stated  under concurrent engineering practices are not favoured in case of  naive products or in cases where there is only an incremantal improvement in  beach by the  coat of the technique.When implementing the Concurrent engineering involves major changes in the  party culture and also  protracts to a significant administrative and/or communication overhead. These are the cases where it becomes difficult to implement the process in the teams.In  such cases, unnecessarily and forciably applying these concepts  may not yield  wagess. Rather, it may prove to be an un sure-fire approach on the part of the management. This emphasises on the fact that it is  real  undeniable to meet certain pre-requisite conditions in order for the concurrent engineering process to give the desired results. In absence of these, there may be confusions and inefficient product development.There are a  some measures which companies may initially take in order to be  lucky    with Concurrent Engineering, likeBenchmarking The company should keep a fair check of itself with respect to their best competitors catchment of  poetic rhythm Proper metrics need to be developed to measure the various parameters to see if right course is being takenIdentification of Potential Performance Improvements and Targets This would help in the continuous improvement and reality check.Development of a clear  deal of the future environment This would  warrant that actions are taken while  memory in mind the long term goals of the organization and to figure out how does Concurrent Engineering fit into the picture.Getting  hap management  turn out This becomes in truth important as a lot depends upon the level of support and confidence shown by the top management for the  effectuation of a process in a company.Getting cross-functional endorsement Integrated functionalities and concurrent  bear on lie at the core of the Concurrent Engineering. Un slight there is an acceptance f   rom all the departments and functional units, the chances of success are faint.Developing a clear   strategy to attain the envisioned environment Without a clear formulation of strategy, it is very difficult to achieve the goals.Developing a  diminutive  effectuation plan Success of Concurrent Engineering would also depend upon how cl first the implementation plan is made.HistoryConcurrent Engineering has been known by various names over the years and across locations. It is known as the  iterative aspect development method (or Integrated Product Development, IPD) as it allows for the correction and alteration in the design and  separate processes through iterations. Continuous feedback mechanism is  use to discover any discrepancy or fault in the model. The  principle behind it is that the sooner the errors are identified, the lesser effort, time and cost is incurred to correct them. The term Simultaneous Engineering has been  employ since the decade of 1990s. It was  base on the i   dea that the life cycle of the new product must fit in with the pre- living product program lifecycles.It was in the December 1988  history The Role of Concurrent Engineering in Weapons System Acquisition by the Institute for Defense Analysis (IDA) that the term Concurrent Engineering was defined . This was an approach which was organizationatic in nature and focused on the incorporated, concurrent design of products and their related processes. This approach is  think to cause the developers, from the outset, to consider all elements of the product life cycle from conception through disposal, including quality, cost, schedule, and user requirements. postulate for Integrating Design with Other functionsIn early designs and product development, there was a division of labour among somebodys who specialized in various functions. There was little opportunity for interaction between the various departmants and functionalities which often  leave to confusions and certain discrepancies be   tween the work done. This at times led to  guest dissatisfaction. With an increase level of competition, the  eccentric of new manufacturing process and the need to reduce development lead time, concurrent engineering has become  more than popular. These  pleas are discussed below.Increased Competition This can be quoted as one  nearification for the rising popularity of concurrent engineering. With the increase in competition, there is all the more a need for competitive advantages and core competencies at firm levels to ensure meeting competition. Concurrent Engineering gives the firms a cost advantage  asunder from ensuring quality and  expertness in processes.New Production Methods With the advent of  technology, there are various new production methods which come into service. This makes it important to   delightping and share the knowledge well-nigh this new service to the various functions and departments. This is necessary because this would ultimately have an  jar on the re   sulting product design. This knowledge share-out would ensure that the various  commonwealth involved in the product development are at the same platform when  culture well-nigh these processes is concerned. Therefore, the situation where new production processes are used will often be an important area for ensuring that design engineers work closely with production engineers. Concurrent Engineering can contri notwithstandinge its bit here.Lead Time Shorter lead time or the time to market is a competitive advantage to the firms. Reduction in the lead time would  simplification the length of the development process and would help bring the product to the market sooner. This would also decrease the  inventorying holding time and would therefore help in cost reduction (or cost advantage). By implementing the concurrent engineering process, the organization can achieve this advantage over the firms employing the traditional methods (sequential process).ProcessConcurrent engineeringis a    workflow that relies on parallel processing by performing  triple tasks simultaneously instead of carrying out the various tasks in sequence as has been the traditional workflow. Concurrent engineering is not just related to engineering processes  hardly rather focuses on the integrated and concurrent design of product and the related processes. This requires the clear identification and description of all the tasks and processes associated with the design, manufacturing, support and other functions by the developers.The developers need to consider the various elements of the product life cycle end to end, varying from the first stage i.e. conception of the product to the  be stage i.e. disposal of the product. The various elements which shall be considered will include almost parameters which have an impact on the development of a product and the associated processes, such as quality, cost, scheduling and user requirement. It is worth noticing that the definition encompasses more t   han just the manufacturing and design of a product. It does not apply only to domains of engineering  exclusively is also widely used in the pharmaceutical, paint, food or  gym shoe industries.Concurrent Engineering is not  restrain to the products or goods. Even service can employ concurrent engineering for improvement in  productivity and reduction in  tote up time to market. Although this may not lead to reduction in number of employees or the work to be done, the  acceptance of concurrent engineering would lead to a faster lead time. In the services sector, the concurrent engineering concept applies to insurance sector, banking sector and others.The  diversion between the conventional product design approach (sometimes also called the falls model) and the concurrent product design approach (sometimes also called the simultaneous engineering approach) has been explained below with the help of a diagram. It is this deviation from the standard and traditional  waterfall model (whic   h employs and focuses on a pre defined sequence of processes and tasks) to the iterative and integrated development method of concurrent engineering, which is responsible for the huge success of this model. In the waterfall model, first of all, all requirements are gathered so as to facilitate clear definition of the problem at hand. This is both a time consuming and effort consuming task. Unless and until the  info gathering is done (which in itself is a tedious task given the level of  question associated with it and the dynamic nature of the  instruction requirement), one cant proceed to the  near level. This interdependency wastes a lot of time.Followed by this is the design phase wherein  base on the requirements, the design of the product is to be agreed upon. The problem here is that in the absence of an option to move back and make changes to the design phase, at times, it becomes difficult to implement the design and subsequently the design may have to be heavily altered or    even scrapped. The Concurrent Engineering is better in this case as being cyclic, all the aspects of the product life cycle has already been taken into consideration,  olibanum allowing the design to take a more evolutionary approach.Then there are the implementation, verification and maintenance phases. All of these suffer from similar problems because of the inflexibility involved in the process. Concurrent Engineering  pounds many of these problems through the approach it employs. The periodicity allows parallel processing and hence offers flexibility to the system as has been shown in the figure below. The various functions like planning, requirement gathering, analysis  design, implementation, testing and  rating are done simultaneously and hence the name simultaneous engineering.The implementation of concurrent engineering requires the combination of people, technology and  line of business methods. It relies on cross-functional  working(a) and teamwork rather than the tradit   ional bureaucratic and hierarchical organizations. Collaboration rather than individual effort is standard, and shared information is the key to success. The role of the leader is to  bring home the bacon the basic foundation and support for change, rather than to tell the other team members what to do. Training addressed at getting people to work together in teams plays an important role in the successful implementation of Concurrent Engineering.The Concurrent engineering process mainly focuses on three aspects, namely people, process and technology. People are given a wider say, a  sentiency of gratification and ownership of their work in the overall design process taking into account the collaborative nature of simultaneous engineering. The success of concurrent engineering depends to a vast extent on the effectiveness and the efficiency of the  organizational teams formed. The three basic attributes which a CE team must have been enumerated as underAbility to deal with inherent    uncertainities associated with  existenceA wide range of competencies varying from manufacturing to design to sales to  fundingPresence of professional knowledge workerThe teams formed are Cross-functional team. The team is formed to work on a  particular(prenominal) project, and stays together throughout the development of the product. The smaller teams comprise of 5  20 people and employ an efficient technical communication. For the implementation of larger projects, a  net profit of teams is formed (a total of 100 to 1000 people). Larger projects are sliced into smaller projects and measures are taken to ensure the integration of separate pieces into a system solution. Presence of Liaison Personnel facilitates timely and proper  impartation of information within the team. Apart from this, job rotation is also an  essential component of the process. The team members are assigned temporarily or  for good outside of their accustomed functional specialty. This ensures the integration    of various knowledge bases without  reservation significant structural changes to the organization.There are certain product design methods in Concurrent EngineeringDesign for Manufacturing (DFM) Herein, constraints are imposed by performance and functionality and consequently, the manufacturing information content of a product design is minimized. This deals with minimizing the total number of  split. Minimize the total number of  move, simplifying the design of the other parts and to promote standardization.Design for Quality Care is taken to minimize the impact of variation i.e. tolerance is improved.Design for Cost It is necessary to have an effective analysis of product and/or project costs based on the understanding of the various cost items involved.Design for Assembly (DFA)  DFA aims at minimizing the cost incurred to assemble the product components.Design for Safety  The designer must develop the habit of constantly evaluating the design for  gumshoe, considering not only    the design itself but the personnel involved in fabricating the product, using the procedure, and in maintaining and repairing the product or system as well as the end user or purchaser. Developing the manufacturing processes as well as the maintenance and operating procedures early during the design process will assist in revealing  safeguard problems at a time when corrective action can be taken at minimum cost.Design for Reliability  To ensure successful performance over a given range of conditional range, specific environment.Apart from all these, the technology and tools also play an important role in the success of the Concurrent Engineering. Integrated Computer Analysis is used for modelling the steps  requisite for the development of the manufactured product.Although the Concurrent Engineering Strategy does not necessarily reduce the amount of man indicator required for a project, it does drastically reduce lead times and thus time to market. This has been illustrated in the    diagram shown as under The better the collaboration between the various phases, shorter is the time to market and higher is the efficiency.Basic Steps as identified through various studiesCompare themselves to their best competitors (i.e. Benchmark)Develop metricsIdentify potential performance improvements and targets  Analyze the market and know your customers.Develop a clear vision of the future environmentGet a strong commitment to from senior management.Get cross-functional endorsementDevelop a clear strategy to attain the envisioned environmentGet top management supportGet cross-functional endorsementDevelop a detailed implementation planCollectively work on all parts of project.Reduce costs and time to market.Complete tasks in parallel.AdvantagesThe practice of  pursual concurrent engineering has numerous advantages such asHelps in  trim down the product development lead timeReducing product development costs associated with getting a product to marketImproved communicatingIn   creased efficiency and performanceHigher reliability in the product development process.Reduced defect rates.Increased effectiveness in transferring technologyImproved quality of resulting end productsIncreased positioning in a highly competitive world marketIncreased accuracy in predicting and meeting project plans, schedules, timelines, and budgetsEmployees require less time learning how to  put up new or improved productsCompetitive Advantage and Increased Performances note implementation risks.Faster reaction time in responding to the rapidly changing market.Lower product and process design and development costs.Improved inventory control, scheduling and customer relations.It achieves this by various methods including but not limited toReducing the number of redesigns  done by involving support groups from the start  thus reducing the total number of iterations. Reduction is total cycle time help in reducing the overall product cost.As much work that can be done concurrently is    done so instead of doing it sequentially. For this purpose teams from unlike functions are brought together.The use of Concurrent Engineering has resulted in savings and benefits which can be divided into three key areasCost Related  nest egg  Manufacturing and Production Costs, Labor costs, Development and  twisting CostsQuality Related Savings  Defects and Nonconformance, Inspection, Productability and TestabilityTime Related Savings  Development Time, Cycle Time, Lead time etc.Another advantage of Concurrent Engineering is that, while knowledge is being built up  closely the design of the product, additional knowledge is being acquired about the other aspects of its life-cycle. As the design progresses, the manufacturing expert will learn more about how to manufacture the product, and the packaging expert will know more about how to package it, etc. This accumulation of knowledge will help in speeding the product through the development process and get it out to the customer more    quickly.These are not only benefits which the company experiences, but ultimately the end users or customers also reap the benefits by having a quality product which fits their needs and in many cases, costs them less to purchase. Therefore, concurrent engineering produces a profitable corporation and a  convenient consumer.LimitationsConcurrent Engineering is not a quick fix for a companys problems and its not just a way to improve performance. Its a business strategy that addresses important company resources. The major objective this business strategy aims to achieve is improved product development performance. It is a long-term strategy, and it should be considered only by organizations willing to make up front investments and  and so wait several years for long-term benefits as it involves major organizational and cultural change.Some limitationsunwillingness to institutionalize Concurrent Engineeringmaintenance of traditional functional reward systemsmaintenance of traditiona   l reporting linesno training in teamworkunrealistic schedulesno changes in relationships with vendorsa focus on computerization rather than process improvementExamples on  covering of the processWe have covered a number of  uses on application of Concurrent Engineering.An example of the use of Concurrent Engineering can be found in General Electrics Aircraft Engines Divisions approach for the development of the engine for the new F/A-18E/F. It used several collocated, multi-functional design and development teams to merge the design and manufacturing process. The teams achieved 20% to 60% reductions in design and procurement cycle times during the full-scale component tests which preceded full engine testing. Problems surfaced earlier and were dealt with more expeditiously than they would have been with the traditional development process. Cycle times in the design and fabrication of some components have dropped from an estimated 22 weeks to 3 weeks.Another example concerns Boeings    Ballistic Systems Division where Concurrent Engineering was used in 1988 to develop a mobile launcher for the MX missile and was able to reduce design time by 40% and cost by 10% in building the prototype.Polaroid Corp.s Captiva instant camera is also the result of a Concurrent Engineering approach, as a result of which Polaroid was able to make literally hundreds of working prototypes. Throughout the process, development was handled by cross-functional teams.Study 1Developing CE model for Shipping Industry Tribon SolutionsThe design and  reflexion of a ship involves a high degree of concurrent engineering. To  allow for to such needs companies like Tribon Solutions develops, markets and supports CAD/CAM/CIM software solutions, with the  guardianship of increasing overall efficiency in the maritime industry. Tribon uses a Product  entropy Model (PIM), which is the central repository and single source of information for designers, planners, administrators of material, manufacturing p   ersonnel, and others working on design and construction. Tribon began work on its API in 1995. Two  assorted paths were considered at this stage Either to publish directly the libraries used by Tribon, or to create a wrapper on top of existing code.The first approach would make all our functionality available to the user, but users would have to use the same development environment as Tribon Solutions, change  compiler versions when Tribon Solutions did so, and so forth. This would have been an expensive and complex solution, only usable by the largest shipyards in the world, those that had their own large IT and development departments.The second approach was preferable, as long as a tool could be found or developed that covered most of the given criteria. Tribon already had a geometry  large language that was developed in-house, but to extend it to the desired level of functionality would have been costly to implement and maintain. The remaining option was to find a  tertiary part   y solution that fulfilled the APIs needs.During investigation of options, Python was discovered  quite an early when a member of the development team read about Python in a computer magazine. After some initial experiment there were really no other contenders. Python had it all. It was a beautiful  programing language that was extensible, embeddable, platform independent, and had no license cost.When it came to incorporate Python into the Tribon software, They found the integration to be quite easy and problem-free, and it was achieved with very little effort. The result of this  fusion between Tribon and Python was named Tribon Vitesse, and the first version of Python used was 1.2.Today Tribon Solutions has customers that have, by utilizing the power of Tribon Vitesse, been able to reduce design time of certain complex ship structures from four weeks to two days, while improving overall quality. This enormous reduction in design time has been possible by automating more of the desi   gn, calculations, information search, and result checking.Study 2Concurrent Design Facility European Space AgencyEuropean Space Agency (ESA) also uses Concurrent Engineering for Integrated and faster product development. The Concurrent Engineering approach used by ESA is based on the following key elementsThe system engineering processA multidisciplinary, product oriented teamAn information distribution and control environmentSupporting tools and facilities.TheConcurrent Design Facility(CDF) is theEuropean Space Agencymain  assessment center for futurespace missionsand industrial review. Located atESTEC,ESAs technical center inthe Netherlands, it has been  running(a) since early 2000.As suggested by its name, the CDF usesconcurrent engineeringmethodology to perform effective, fast and cheap space mission studies. Equipped with state of the art network of computers, multimedia devices and software tools, the CDF allow team of experts to perform design studies during working sessions.   ActivitiesThe CDF is mainly in charge of performing the assessment studies of future missions for theEuropean Space Agency. These assessment studies are phase 0 or pre-phase A studies where the needs are identified and  relegation Analysis is performed. Phase 0 allows the followingIdentification and characterisation of the intended mission.Expression in terms of needs, expected performance and dependability and safety goals.Assessment of operating constraints, in particular as regards the physical and operational environment.Identification of possible system concepts, with emphasis on the degree of  intromission and any critical aspect.Preliminary assessment of project management data (organisation, costs, schedules).In addition, the CDF often perform reviews of industrial contracts initiated byESA.The spacecraft design is based on mathematical models, which make use of custom software and  associate spreadsheets. By this means, a consistent set of design parameters can be defined a   nd exchanged throughout the study, and any changes which may have an impact on other  playing fields can immediately be identified and  collectively assessed. In this way, a number of design iterations can be performed, and different design options can easily be analysed and compared.CDF activities are conducted in sessions plenary meetings in which representatives of all space engineering domains participate, from the early phases (requirement analysis) to the end of the design (costing). Even those disciplines that were traditionally involved at a later stage of the process are given the opportunity to participate from the beginning and to  pose trends that might later invalidate the design.FacilityThe CDF design room has been  intentional and equipped with all the relevant hardware and software tools, with the aim of creating an effective communication and data interchange environment among team members.The CDF facility containsan  coordinate of design stations, each dedicated to    a specific technical disciplinedata and application servers, providing on-line access to design data and toolsa multimedia wall containing three large projector screens (One of them been aSMART Boardfor free hand drawing)video-conferencing equipment that enables concurrent engineering to be carried out in a distributed mannerConcurrent Design ModelCDF-IDMwhich will be replaced in the near future by theOpen Concurrent Design ServerOpen Concurrent Design In the CDF and Path AheadESAs Concurrent Design Facility (CDF) has successfully show the  susceptibility to use Space System Concurrent Engineering to overcome the communication gaps between the designer (who produces design information) and the user (who utilizes the design information) enhancing the in-house capability to perform feasibility studies in a very effective and interdisciplinary manner. Many candidate missions have taken advantage of the new capabilities offered by the CDF, reducing the pre-Phase A (preliminary design)    study duration from several months to a  a couple of(prenominal) weeks while increasing design quality. This has been in part due to the use of the CDF-IDM, the integrated design model. The Open Concurrent Design Server (OCDS) is the  near generation of the CDF design model.The CDF-IDM was built on an experimental basis and makes use of spreadsheet technology, both as data storage and as engineering tool. The OCDS on the other hand makes use of a Service Oriented  architecture (SOA) using web services, a centralised database and many client tools such as the OCDS Study Manager (OSM) and OCDS enabled spreadsheets.The growing interest of ESA partners, Industry and  academia in the ESA CDF core IDM, standardised data representation and exchange, and common design methodologies is one of the reasons that has motivated the creation of the Open Concurrent Design Serv  
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