基于ADAMS和Pumplinx联合仿真的柱塞泵回程盘运动受力薄弱点分析

为研究轴向柱塞泵中回程盘偶然出现断裂失效的现象,对回程盘所承受各力进行详细的理论分析.综合各方面的受力分析表明,回程盘在其结构上出现了一个以吸排油侧分界为参考线的弯矩.通过对回程盘及整泵进行 ADAMS刚柔耦合有限元和Pumplinx流体有限元联合仿真,结果表明:每个柱塞运动至吸排油侧的分界线周围时,所对应回程盘孔的外侧边缘应力集中最大,这一区域成为回程盘运动受力的薄弱点,在弯矩的作用下,这些薄弱点成为最有可能发生断裂的风险区.

Analysis of the weak points in the movement of slipper retainer from axial piston pump based on the joint simulation of ADAMS and Pumplinx

In order to study the accidental fracture of the slipper retainer in the axial piston pump, the forces on the slipper retainer are analyzed in detail. The distribution of forces in all aspects is integrated, which shows that the slipper retainer reflects a bending moment with the boundary of suction and discharge side as the reference line in its structure. After the slipper retainer and the whole pump are simulated by ADAMS rigid flexible coupling finite element and Pumplinx fluid finite element, the calculation results show that while each piston moves around the boundary line of suction and discharge side, the stress concentration of the outer edge of the corresponding slipper retainer hole is the largest, which makes this area become the weak points of the slipper retainer movement, under the action of bending moment, these weak points become the most likely fracture risk area.