阻尼橡胶材料阻尼性能悬臂梁共振法测试方法  

Method for Vibration Damping Property Testing of Damping Rubber Materials Based on Cantilever Resonance

作　　者：李辉[1] 马卫东[1] 孙志勇[1] 孙国华[1] 李斌[1] 杜华太[1] 

机构地区：[1]中国兵器工业集团第五三研究所,济南250031

出　　处：《噪声与振动控制》2014年第6期210-214,共5页Noise and Vibration Control

摘　　要：根据标准ASTM E756-05(2010),对阻尼橡胶材料阻尼性能悬臂梁共振法的测试方法进行了研究,分析接触式响应传感器引入的附加质量及激励传感器和响应传感器的安装位置对测试结果的影响,并得到有意义的结论。试验结果表明:质量为0.6 g的接触式响应传感器引入的附加质量对材料的弹性剪切模量和剪切损耗因子的影响较小,测试结果满足标准ASTM E756-05(2010)对测试精度的规定;选择合适的激励器安装位置有利于提高传递函数曲线幅值;响应传感器的安装位置对传递函数曲线影响较大,测试时应根据所要获得的模态信息选择合适的测点。The vibration damping properties of damping rubber materials were tested according to ASTM E756- 05（2010） based on the cantilever resonance method. The effects of the additional weight induced by the contacting responsetransducer and the arrangements of the exciter transducer and response transducer were analyzed. The results show that theadditional weight of the contacting response transducer with 0.6 g mass has little contribution to the shear loss factor and theshear modulus. The suitable arrangement of the exciter transducer can cause the increase of the FRF amplitude, and thearrangement of the response transducer has a large effect on transmission function curve. So, locations of the responsetransducers should be chosen reasonably according to the required modal signals.

关 键 词：振动与波 自粘性 阻尼橡胶 共振频率 弹性剪切模量 剪切损耗因子 

分 类 号：O422.6[理学—声学]