Papers by Keyword: Cooperative Design

Abstract: Computer-aided indoor design is a communication-dense process. In the design, computer technology is usually needed to realize mutual data interaction, feedback and coordination as well as promote the quality and efficiency of indoor design through the correlation of data. Therefore, from the perspective of computer supported environment, the paper puts forward the most explicit requirements on cooperative design, i.e., by adopting a series of software, such as CAD, Revit, BIM and so on, under the technological background of computer supported cooperative work, the paper improves the maintenance and updating of each link in the design and construction process, thus leading to a great and overall leap of indoor design based on the bidirectional associations between computer technology and cooperative design.

Abstract: This paper studied the underground subway station planning depend on BIM technology. The existing 3D buildings’ information was processed by computer technology. Using the information and planning based on constraints on the space station, the simulation of the actual situation in 3D view way constantly, adjust planning position, compare each project calculation cost, obtain the optimal line position. We can carry cooperative design plan the subway station by the restrictive conditions and achieve the optimal line layout.

Abstract: To input rational customer requirements into engineering design process more effectively and improve product design quality and market response efficiency, this paper focuses on the interaction between market analysis and engineering design decision for the modular product. While many researchers have successful evaluated and optimized the design schemes, few, if any, have provided a bridge the customer selection and firms product development decision. After a review of the literature we introduce the flow of user-engineering design interaction including both maximize the utility of customer and the profit of the firm. On the user and market analysis flow, customer requirements are defined according to the target market, then the customer selection possibility link to the product attributes by utility function. Accordingly, the alternatives are corresponding to the module different product, and then using decision support problem method to search the optimal design parameters. Two design domains can share the design information and realize the cooperative design process by computer computing platform.

Abstract: The system structure and the system frame of cooperative design are established in this paper. The develop strategies combined prototype method and object-oriented are pointed out. By integrated existing software products and Secondary Development, the cooperative design platform are established.

Abstract: A method for generating fabricating information of micro device from a feature-based design model is presented. With cooperative design mode, the process model derivation and optimization are accomplished simultaneously. This work provides designer a more intuitive way to design product by means of process verification to improve manufacturability. The key enabling technologies are introduced briefly.

Abstract: Knowledge-intensive is a significant feature of the modern service-oriented industrial structure, and knowledge service is a main part of knowledge science. With research practices and accumulations in the field of tribological knowledge acquisition of turbine, automobile engines and other complex mechanical systems, construction of knowledge base and cooperation with enterprises in chain of “University-Industry-Research”, based on the understanding and experience of conceptual contents and features of tribology, knowledge service and resource unit and other concepts in the process of utilization, this paper studied the expression of modeling knowledge in the process of basic tribological knowledge service, construction of knowledge unit based on knowledge base and the driving force of knowledge acquisition and knowledge flow.

Abstract: With the gradual complication of micro devices, the poor manufacturability of product becomes a bottleneck. In this paper, we discuss the optimal design method that involves the model restriction, model revising and cooperative design management. Firstly, the design rules checking for the original model is introduced, which constrains the 3D models into an appropriate form to satisfy the manufacturing requirements. Then, the informational description of micro device involves two levels. The device level modeling focuses on geometric information, while the process level modeling works at manufacturability. Based on the two level models, the model revising procedure is performed in cooperative design environment. Furthermore, a polysilicon electro-thermal actuator is used to illustrate the cooperative optimal design approach.

Abstract: The lens molding technology has become a promising fabrication method for glass lens, especially for aspheric glass lens in batch. Because during the real compression molding, the error compensation for mold shape turns very difficult, the mold needs to be repaired repeatedly to meet the requirements of lens molding. To solve this problem, a cooperative design scheme is proposed. However, the scheme is not limited to solving the mold repairing; it also aims to providing the integrated and optimal design for aspheric glass-lens mold. In fact, the cooperative scheme is a collaborative software platform, which integrates with data processing, optical design, finite element analysis, error compensation and mechanical design for lens molding. On this platform, users only need to submit the (camera) lens parameters or measured data of aspheric lens, and then the platform can provide the final mold drawings, which will be input in the CNC software of ultra-precision machine and guide the mold fabrication. Meanwhile, the cooperative platform is Network-based PDM system, so designers could remotely communicate with it and help to finish the mold design jointly. In this case, the cooperative design could tremendously improve the efficiency and accuracy of lens molding.

Abstract: As restricted by airplane R&D circle, aircraft tooling design is desired to comply with airplane product design and subsequent portions. However, cooperative design for aircraft tooling, especially large-sized one, is difficult and the reasons are as follows: ①The quantity for Aircraft tooling parts is enormously large, the size is large, and the structure is complex. ②Tooling design procedure is complicated with many portions to be coordinated. ③Airplane product amendments are frequent and hard to trace. Aircraft tooling design tends to proceed without effective mechanism to evaluate and optimize manufacturing process, scheduling and etc. With these difficulties considered, an aircraft tooling cooperative design model based on Neuron-Endocrine-Immunity working principle is presented in this paper. Resorting to shared chemical information molecules, Neuron-Endocrine-Immunity system forms an extensive and complicated regulating network which regulates all cells and tissues in human body. Referring to this principle, aircraft tooling design system involves controller and controlled objects. With adaptive and self-organized tooling design procedure, rapid adjustment or reconfiguration can be realized. Meanwhile, the feasibility and validity of adjusting task plans and tooling design schedules are ensured. To implement this model, a multi-agent-based framework for aircraft tooling cooperative design is proposed. This framework incorporates PDM and united structure for effective collaboration in terms of unified data sharing, convenient tool wrapping and decentralized control. A pilot system has been developed and testified in an aircraft manufacturing enterprise, thus lessening repetitive modifying workload, ensuring design quality and project schedule.

Abstract: The system of customer-oriented product cooperative design(COPCD) provides a platform for customers, on which the customer designers can participate in the cooperative design activity. Through researching on the structure of cooperative design system platform based on internet/intranet, the function, which is expressed with STEP standard file and online display via network, modified as well , in the form of product model created in Pro/E, was achieved by making use of VC++6.0 programming language and OpenGL technology. Moreover, the communication tool NetMeeting was integrated in this platform interface for the communication in the process of cooperative design activities. This system platform conceptually implements the cooperation between customer and designer, the product design efficiency and its success rate would be improved.