Use of functional specifications as objective functions in topological optimization of compliant mechanism

✍ Scribed by G.K. Lau; H. Du; M.K. Lim

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 256 KB
• Volume: 190
• Category: Article
• ISSN: 0045-7825
• DOI: 10.1016/s0045-7825(00)00325-x

✦ Synopsis

Instead of using the concepts of minimum compliance or maximum mutual compliance, alternative formulation, based on functional speci®cation is proposed to solve for topology of compliant mechanism. Among mechanical advantage, geometrical advantage and work ratio, one of the functional speci®cations is posed as objective function while displacement constraint and material constraint are imposed. The topological design of compliant mechanism is then solved as a problem of material distribution using spring and SIMP model without ®ltering technique. The solution of this problem is obtained by using the method of moving asymptotes (MMA). The eect of problem formulation on ®nal topology of compliant mechanism is then illustrated using two examples and the results are compared against their rigid-body counterparts.