摘要
在总结大量连杆计算经验的基础上 ,分析了影响计算精度的各种因素 ,提出了一个精细有限元组合计算模型 :摒弃了各种近似处理方法 ,计算模型完全根据连杆实际结构确定 ,计入了连杆组装的全部零件以及活塞销、活塞和曲轴 ,其间所有配合关系用有摩擦的 3维弹性多体接触模型模拟。采用有限元参数二次规划算法 ,并结合多重多支的子结构技术求解。
Summarizing numerous calculation experiences of connecting-rod and analyzing factors which have influence on computational accuracy, this paper presents a precise FE model. It includes all of the components of the conrod as well as piston,the pin and the crankshaft,then the joint-relationships among all of the parts are processed as 3D elastic multi-body contact model with friction. The FE parametric quadratic programming (PQR), which is linked with the multi-level and multi-branch substructure algorithm has been used to solve this nonlinear problem.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2001年第3期282-284,共3页
China Mechanical Engineering
