摘要
提出一种以降低结构噪声为目的的动力学拓扑优化方法。在进行动力学响应方程求解和灵敏度分析的基础上,以结构表面辐射声功率极小值为目标函数,结合数学规划法和渐进优化的思想,建立了谐响应激励下的拓扑优化模型,利用APDL参数化编程语言进行了算法实现和数值模拟分析,证明了所建立数学模型的正确性和有效性。
A structure for the purpose of reducing the noise of the dynamics associated topology optimization methods was put for- ward. On the basis of the dynamics of the solution of equations and the sensitivity analysis, using the surface structure with the mini- mum wattage of objective function, by combing the authority of mathematical programming and evolutionary optimization, the model of dynamic topology optimization to react to any excitation was es- tablished. The realization of algorithm and virtual analysis of data were achieved by use of APDL parameterization programming lan- guage. The correction and effectiveness of the mathematical model were approved.
出处
《机械设计》
CSCD
北大核心
2013年第4期64-67,共4页
Journal of Machine Design
基金
国家高技术研究发展计划(863计划)重大课题资助项目(2011AA04A102)
国家自然科学基金资助项目(31171457)
教育部科学技术研究重点资助项目(210005)
天津职业技术师范大学科研发展基金资助项目(KJ11-03)
关键词
辐射声功率
拓扑优化
动力学
谐响应
acoustic radiation power
topological optimiza- tion
dynamics
harmonic response
