A PROTOTYPE OF FEATURE-BASED DESIGN FOR ASSEMBLY

被引:39
作者
DEFAZIO, TL
EDSALL, AC
GUSTAVSON, RE
HERNANDEZ, J
HUTCHINS, PM
LEUNG, HW
LUBY, SC
METZINGER, RW
NEVINS, JL
TUNG, K
WHITNEY, DE
机构
[1] The Charles Stark Draper Laboratory, Inc., Cambridge, MA
关键词
D O I
10.1115/1.2919261
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
This paper describes a prototype software system that implements a form of feature-based design for assembly. It is not an automated design system but instead a decision and design aid for designers interested in concurrent design. Feature-based design captures design intent (assembly topology, product function, manufacturing, or field use) while creating part and product geometry. Design for assembly as used here extends existing ideas about critiquing part shapes and part count to include assembly process planning, assembly sequence generation, assembly fixturing assessments, and assembly process costs. This work was primarily interested in identifying the information important to DFA tasks, and how that information could be captured using feature-based design. It was not intended to extend the state of the art in feature-based geometry creation, but rather to explore the uses of the information that can be captured. The prototype system has been programmed in LISP on Sun workstations. Its research contributions comprise integration of feature-based design with several existing and new assembly analysis and synthesis algorithms; construction of feature properties to meet the needs of those algorithms, a carefully chosen division of labor between designer and computer; and illustration of feature-based models of products as the information source for assembly analysis and process design. Some of its functions have been implemented approximately or partially but they give the flavor of the benefits to be expected from a fully functional system.
引用
收藏
页码:723 / 734
页数:12
相关论文
共 16 条
  • [1] Anon, Requirements for Support of Form Features in a Solid Modeling System
  • [2] Nevins J.L., Whitney D.E., Concurrent Design of Products and Processes, (1989)
  • [3] Kroll E., Lenz E., Wolberg J.R., A Knowledge-based Solution to the Design for Assembly Problem, Manufacturing Review, 1, 2, pp. 104-108, (1988)
  • [4] Cutkosky M.R., Tenenbaum J.M., CAD/CAM Integration Through Concurrent Process and Product Design, ASME Symposium on Integrated and Intelligent Design, (1987)
  • [5] Logcher R.D., Sriram D., CAE Techniques for Distributed Design, Int’l Symposium on Building Economics and Construction Management, (1990)
  • [6] Luby S.C., Dixon J.R., Simmons M.K., Designing with Features: Creating and Using a Features Database for Evaluation of Manufacturability of Castings, Proceedings of the International Computers in Mechanical Engineering Conference of the American Society of Mechanical Engineers, 5, 3, pp. 25-33, (1986)
  • [7] London P., Hankins B.G., Luby S.C., Sapposnek M., The Expert Cost and Manufacturability Guide: A Customizable Expert System, Proceedings of the International Computers in Mechanical Engineering Conference of the American Society of Mechanical Engineers, (1987)
  • [8] Baldwin D.F., Abell T.E., Lui M.-C.M., De Fazio T.L., Whitney D.E., An Integrated Computer Aid for Generating and Evaluating Assembly Sequences for Mechanical Parts, IEEEJ. Robotics and Automation, 7, 1, pp. 78-94, (1991)
  • [9] Gustavson R.E., Design of Cost-Effective Assembly Systems, SME Paper AD88-250, Presented at Successful Planning and Implementation of Flexible Assembly Systems, (1988)
  • [10] Lui M.-C.M., Generation and Evaluation of Mechanical Assembly Sequences Using the Liaison Sequence Method, (1988)