预压量对橡胶减振器减振效果的影响分析  

Influence of preloading on the vibration reduction effect of rubber shock absorbers

作　　者：杨杰 李宛骏[1] 张祥 汪玲 张红 Yang Jie;Li Wanjun;Zhang Xiang;Wang Ling;Zhang Hong(Hefei Tongzhi Electromechanical Control Technology Co.LTD.,Hefei 230088,Anhui,China;School of Physics,Anhui University,Hefei 230601,Anhui,China)

机构地区：[1]合肥同智机电控制技术有限公司,安徽合肥230088 [2]安徽大学物理学院,安徽合肥230601

出　　处：《橡塑技术与装备》2024年第3期49-53,共5页China Rubber/Plastics Technology and Equipment

摘　　要：本文以橡胶的硬度和预压量作为变量,共设计八种减振器,分别安装于箱体上进行振动试验,对比不同减振器的减振效果。试验结果显示,当预压量为0.5 mm时,减振器在水平纵向和垂直方向振动下的减振效果均优于其他预压量,但在振动过程中由于安装间隙会发生额外的摩擦,其中硬度为43的橡胶上更容易产生明显的裂痕,降低了橡胶的使用寿命。当预压量增加到2.5 mm或2.0 mm时,橡胶上的裂痕较浅,使用寿命更长。综上所述,橡胶减振器的使用过程应适当增加预压量,减振效果的降低并不明显且减振器的使用寿命将提高。This article takes the hardness and preloading of rubber as variables and designs eight types of shock absorbers,which are installed on the box for vibration tests to compare the vibration reduction effects of different shock absorbers.The experimental results show that when the preloading amount is 0.5 mm,the vibration reduction effect of the damper under horizontal,longitudinal,and vertical vibration is better than other preloading amounts;However,during the vibration process,additional friction occurs due to installation gaps,making it easier to produce obvious cracks on rubber with a hardness of 43,which reduces the service life of the rubber.When the preloading amount increases to 2.5 mm or 2.0 mm,the cracks on the rubber are shallower and the service life is longer.In summary,the use of rubber shock absorbers should appropriately increase the preloading amount.At this time,the reduction in vibration reduction effect is not significant and the service life of the shock absorber will be improved.

关 键 词：橡胶减振器 随机振动 实验研究 预压量 

分 类 号：TQ336.42[化学工程—橡胶工业]