论文部分内容阅读
在非工作状态下对 61 1 0型柴油机气缸套的变形进行测试 ,结果表明 ,6个气缸套在测试的 3个截面上均发生失圆现象 ,并且这种失圆现象在长轴的方向有一定的规律性 机体顶平面与气缸盖之间的接触压力试验证明了这一部位的接触应力不均匀 为了分析引起气缸套变形的主要原因和找出降低气缸套变形的途径 ,对 61 1 0型柴油机进行了有限元计算 ,并对螺栓扭紧力矩的大小和气缸套受力圆环的直径分别选取 3个水平进行试验优化 有限元法计算分析后 ,结果表明 ,缸盖螺栓扭紧力矩的大小和气缸套顶平面上的受力位置对缸套的变形均有显著影响
In the non-working state of the 6110 diesel engine cylinder liner deformation test results show that 6 cylinder liner in the test of three cross-section of the phenomenon of rounding, and this loss phenomenon in the direction of the long axis A certain regularity The contact pressure test between the top plane of the body and the cylinder head proves that the contact stress is not uniform in this area. In order to analyze the main causes of the deformation of the cylinder liner and find the ways to reduce the deformation of the cylinder liner, The finite element method was used to calculate the torque of the cylinder head bolts. The torque tightening torque of the bolts and the diameter of the ring of the cylinder liner were respectively selected by three levels to optimize the finite element method. The results showed that the tightening torque And the stress position on the top of the cylinder liner has a significant impact on the deformation of the liner