摘要
为了研究应力约束下连续体结构拓扑优化问题,利用ICM(independent continuous mapping)方法,对单 元质量和许用应力采用不同的过滤函数,建立了以质量为目标,应力约束下的连续体结构拓扑优化模型．引入 了新的删除准则,利用二分法得到了自适应的删除率,减少了迭代次数,提高了求解效率．在MSC／ Patran&Nastran软件的开发平台上实现了该算法,二维和三维数值算例表明了该方法的可行性和有效性．
In order to study an topological optimization of continuum structure with stress constraints, ICM (independent continuous mapping)methodology is used. A set of filter function of element s weight and allowable stress is introduced. The model of continuum structure minimized the structural weight with stress constraints is established. A new strategy for deleting elements is given. The half partition method is applied to obtain adaptive deleting rate. The iteration is decreased. The present optimal model and...
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2005年第S1期1-5,共5页
Journal of Beijing University of Technology
基金
北京市自然科学基金资助项目(3042002)北京市教育委员会资助项目(KM200410005019)北京工业大学青年基金资助项目(JQ0101200202)
