部载荷 meaning in English

compound loading

In order to analysis the contact problem between elasticity roller and rigid plane , another iterative process is raised . supposing the right contact point has been known , the left contact point has to be found and the distribution of stick zone and slip one have to be determined in each iterative process . the outer load is evaluated according to the solved force distribution in contact zone
针对弹性滚柱与刚性平面的稳态滚动接触问题，采用已知接触区右端点来搜索接触区左端点以及区内粘连区、滑移区分布的迭代搜索方法，并根据搜索得到的接触区内分布压力反求出外部载荷。