摘要
本文改进了Powell的直接优化方法,提出了有效的约束函数法,并用此法研究了膜片联轴器在强度刚度振动条件下,以重量最轻、刚度最小为目标的优化设计计算。基于膜片的强度、刚度是在有限元分析基础上的,必须要很好地解决有限元前置处理(自动分单元、分载荷)和后置处理(绘等值线)。开发了一套比较完善的暎片外形优化设计软件系统,简称ODFC系统。
In this paper,we improve the Powell direct optimization process at first and then present an efficient computational method of constrained functions. By the method derived under the conditions of strength and vibration,taking the minimum weight and axial stiffness of the couplings as the objective functions,we give an optimum design algorithm of laminated membrane couplings. The calculations are based on the finite element method. Because of the complexity of the exerted loads,such as torsion,centrifugal force, and the loads caused by axial,radial and angular misalignments,'the stresses include both static and dynamic stresses,and a modified GOODMAN curve is used here for the safety factor. With & pre-process and a past-process of finite element, we present a useful software system of optimum design for membrane contour,ODFC system for short. The system ODFC performs the calculation of the strength,analysis of the feature of vibration,and the optimum design of the laminated membrane couplings. It is also very useful in standardizing and seriating the involved couplings.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
1993年第5期618-623,共6页
Journal of Nanjing University of Aeronautics & Astronautics
关键词
联轴器
有限元法
膜片
couplings,optimization,finite element methods,membrane
