Title :
Fuzzy finite element optimization of three-axis simulating table structure
Author :
Guang-Yu, Zhang ; Yi-Nan, Lai ; Le-Min, Yang ; Qi-Xin, Zhang
Author_Institution :
Dept. of Mech. Eng., Harbin Inst. of Technol., China
Abstract :
With an application of fuzzy finite element theory, in conjunction with an improved cut-level set method that considers different properties of constraints, a fuzzy finite element optimum mathematics model whose objective function is mass of the three-axis table frame is built. So the fuzzy optimum problem is transformed into the ordinary optimum problem using Sequential Unconstrained Minimization Technique (SUMT) to solve. A general optimum method is developed for the design of three-axis simulating table structure. An application is given. The results show that the mass of frame decreases by 8.7% compared with the ordinary design with the deterministic boundary constraints. The practical application of example is feasible in the project, so the method could be applied efficiently to practical engineering problems.
Keywords :
aerospace simulation; deterministic algorithms; finite element analysis; fuzzy set theory; minimisation; optimal systems; cut level set method; deterministic boundary constraints; finite element theory; fuzzy finite element optimization; objective function; optimum mathematics model; optimum method; sequential unconstrained minimization technique; simulating table structure; three axis table frame; Boundary conditions; Design engineering; Finite element methods; Fuzzy set theory; Fuzzy systems; Information analysis; Material properties; Mathematical model; Mathematics; Solid modeling;
Conference_Titel :
Fuzzy Systems, 2003. FUZZ '03. The 12th IEEE International Conference on
Print_ISBN :
0-7803-7810-5
DOI :
10.1109/FUZZ.2003.1206624