摘要
螺栓-法兰连接是应用于航空航天、核能等领域的管道主要连接形式。工程上迫切希望获得此类结构的最优化设计,以实现系统性能最佳化。针对这种连接结构的优化设计实际包含接触问题和优化问题两部分的内容,是非线性因素的耦合以及优化设计层层迭代的过程。综述了小变形弹性接触问题中的有限元法及其在工程中的应用,针对螺栓-法兰中优化设计中关心的花瓣的优化,同时还简述了拓扑优化设计方面的研究进展。最后对今后的研究方向和研究的重点作了展望。
Bolted flanged connection is the primary connection form in aeronautical engineering, pipe and nuclear energy fields. The engineering is eager to obtain the optimum structures in order to achieve the best system performance. The problem includes contact and optimization. In fact, it is a process of nonlinear coupling and optimization design. The progress of FEM for contact problems as well as engineering applications is summarized in the paper, particularly including the small deformation and elastic contact problem. At the same time, the topology optimization design is summarized, particularly including petal. In the end, a view for continuing study of research way and keystone in future is forecast .
出处
《强度与环境》
2008年第3期7-13,共7页
Structure & Environment Engineering
基金
国家自然基金资助(A06-10676026)
关键词
接触
有限元法
数值算法
拓扑优化
contact
FEM
numerical arithmetic
topology optimization
