摘要
基于有限元数值仿真方式建立装配式凸轮轴横向滚花塑性过盈装配模型,研究压装后钢管表面滚花区域应力应变特征,并进行了装配式凸轮轴横向滚花压装实验。实验结果与数值模型结果相一致,凸轮片凹槽内壁与钢管滚花外壁通过弹塑性压配形成十字花形啮合。采用算术平均滤波法消除计算误差对计算结果的影响,结果表明,横向滚花装配式凸轮轴压装力呈阶梯状周期跳跃上升;若不考虑齿形影响,随着压装长度的增大,压装力呈多阶段多斜率线性增加。
Assembled camshaft transverse knurling plasticity connection model is established based on finite element numerical method, the stress and strain characters of knurling tube surface area are ana- lyzed, and assembly camshaft pressure assembling experiment is set up. Experimental results consistent with the results of numerical model. Cruciate engage is formed between the cam inner wall and steel tube outer knurling wall through elastic-plastic press-fit. Arithmetic average filtering method is used to elimi- nate the numerical simulation calculation error, the results show that pressure assembling force of assem- bly camshaft increase in the shape of cycling ladder. Regardless of affect of the knurling tooth form, the assembling force increase linearly along with the increase of the length of the assembling by the form of multi-stage and slope.
出处
《滨州学院学报》
2017年第6期52-56,共5页
Journal of Binzhou University
基金
中国博士后科学基金资助项目(2016M602135)
关键词
装配式凸轮轴
横向滚花
过盈装配
数值仿真
assembly camshaft
transverse knurling
interference assembly
numerical simulation
