摘要
基于非线性不可压缩的Mooney-Rivlin模型,建立了通气管橡胶密封件的有限元模型。根据建立的有限元模型,分析了在密封件与密封表面摩擦系数不同时,密封件的应变和密封表面的接触应力的分布规律,得出了不同的摩擦系数对于橡胶密封件密封性能的影响,结果表明,密封件的最大应变和密封表面的最大接触应力均随着摩擦系数的增加而增加,在保证最大接触应力大于通气管内部压强时,应尽量减小摩擦系数,以保证密封件不会因损坏而导致密封失效。
Based on the nonlinear incompressible Mooney-Rivlin model,this paper builds a finite element model of the snorkel rubber seal. According to the model it analyzes the distribution the strain of the rubber seal and the contact stress of the sealing surface on the different friction coefficient of the seals and sealing surface,and gains the influence of the different friction coefficient to the sealing property of the rubber seal. Results show that the maximum contact stress of the seal and maximum strain of the sealing surface rise with the increasing of the friction coefficient. In order to avoid the seal failure due to the damaged seal it should try to reduce the friction coefficient when ensuring the maximum contact stress is greater than the internal pressure of the ventilation tube.
出处
《装备制造技术》
2016年第1期47-49,52,共4页
Equipment Manufacturing Technology
关键词
橡胶密封件
最大应变
摩擦系数
接触应力
rubber seal
maximum strain
friction coefficient
contact stress
