| Designing a new vehicle is an extremely challenging task that requires concurrent development processes. The cycle of the vehicle development process is constantly being compressed to bring vehicles faster to market. Automobile manufacturers tend to improve the process through team collaboration and reuse of existing design knowledge throughout the design process. It is a known that automobile body design is a complicated design process that requires guidance through the knowledge of experts in addition to designers'experience. Body designers have always struggled with the issue of getting their designs to be quickly and easily modified and analyzed from one configuration to another for the purpose of finding optimal body structure with all important design constraints being considered including the issues of the structural weight, the geometry, functions, stiffness and stresses. This dissertation focuses on research and software development for cross-arm styles glass regulator, and it is of great import. During the concept design phase, development and design are most important, because they affect 70 percent of cost and 80 percent of quality and function. In order to improve quality and reduce cost, we need adopt concurrent engineering to cooperate with design. So we can consider the product's manufacture, assemble and maintenance as soon as possible. The door system of auto body is a complex sub assembly. It has a set of annex system. Those of them are located in a poky space which is surrounded by auto body inner panel and outer panel. Some of them are influential with other relative parts of auto body door. In above cases, such one problem involving in traditional design way often occurs, that is to say, the design of annex is decided by several primary parameters. On the same time, these annex parts would influence several relative parts. Designer would fall into a complex cycle of reference set. KBE mainly come from design standard and experts'experience. Based on the style surface of glass, position of door inner and limit position of glass, this module mianly utilize navigation user interface to input journey of glass, position of fit point and parameter of cross-arm styles glass regulator. The result are revolved surface of glass and paramatized. Based on the style surface of glass, position of door inner and limit position of glass, this module mainly utilize navigation user interface to input journey of glass, position of fit point and parameter of cross-arm styles glass regulator. The result are revolved surface of glass and parameterized module of cross-arm styles glass regulator, and then check force, moment and clearance, the same time this module can simulate motion. All produce is a closed loop. Designer can utilize this module to concurrent design. This dissertation introduces the design demand and aim of cross-arm styles glass regulator. Based on this aim, we decide the input conditions and utilize Sketch, CAD, KF, Wave Link and Motion to produce parameterized module of cross-arm styles glass regulator; utilize experts'experience check force , moment and clearance; the same time simulate motion. This produce proves that this design produce of cross-arm styles glass regulator is feasible. At last I utilize C, C++, UG OPEN/API and UG code to complete this design module. Now this module has passed the testing. This dissertation focus on the flow of development, include design of Wizard UI, program strut, data flow and how to write script. Advantage of this module: 1. KBE integrate to design of auto body. 2. During the concept design of auto body, consider assemble and tolerance of annex 3. Utilizing navigation user interface to design auto body, improve efficiency. 4. Adopting closed loop to design, add concurrent design's method. The ideal of this module is provided by US GM and this module borrows theory of body quick parameterized modeling. Now all MCAD software have not... |
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