振动环境下过盈装配圆柱结构预紧防转判据研究

在振动环境下过盈装配圆柱结构预紧防转判据研究中，以Mooney-Rivilin本构模型描述缓冲橡胶垫层，以库伦滑动假设描述界面接触滑动，在ABAQUS中计算获得了任选接触点处于压剪变形状态与摩擦滑动状态分界的位移边界，并由此定义了最小滑移偏心距作为预紧有效性的判据，即振动环境下相对运动幅值小于此偏心距，内外层之间将不会产生相对转动，预紧防转装配有效。数值仿真试验和基于单轴振动台的正交相差相对运动试验表明，只有当相对运动幅值超过一定量值时，才出现层间转动现象，验证了最小滑移偏心距判据的合理性。

A study of interference preload anti-rotation validity criterion for cylinder assembly in vibration environments

In the study of study of interference preload anti-rotation validity criterion for cylinder assembly in vibration environments, using Mooney-Rivilin model to describe the mechanical behavior of rubber cushion and Coulomb contact sliding assumptions, the stress field is calculated by ABAQUS at optional contact points for different offset displacements. The boundary of compression-shear stress zone is obtained. When the offset displacement exceeds this boundary, the stress will be occurrence into frictional sliding state. This defines the minimum slip on eccentric distance as the validity criterion of preload. Since the relative movement of the vibration amplitude smaller than the eccentric distance between the inner and outer layers, it ensures that there is no relative rotation to validate the preload anti-rotation assembly effectiveness. Based on the numerical simulation and an orthogonal axis vibration table phase-difference relative experiment, we find that the layers rotation occur only when the relative motion amplitude exceeds a certain value, which is verified the smallest slip eccentric distance is reasonable criterion.