聚氨酯泡沫塑料振动性能的试验研究  

Experimental Investigations On Vibration Performance Of Polyurethane Foam Plastics

作　　者：唐一科[1] 龚宪生[1] 顾乾坤[1] 

机构地区：[1]重庆大学机械传动国家重点试验室,400044

出　　处：《精密制造与自动化》2003年第B09期73-75,共3页Precise Manufacturing & Automation

摘　　要：本文对一种增强泡沫塑料隔振材料进行振动性能试验研究。首先,设计了泡沫塑料隔振材料振动特性试验及试验装置;其次,对泡沫塑料隔振材料进行振动试验并获取试验数据;然后,对试验数据进行处理、分析和研究。试验研究表明,泡沫塑料隔振材料的振动特性不仅与振幅有关,还与振动频率有关;恢复力同时受频率和振幅的影响,并和变形历史有关,具有非线性滞后特性;在振动情况下表现出动刚度非线性和阻尼非线性的特性,变化十分复杂。试验研究为泡沫塑料隔振材料数学建模、参数辨识和动力学设计及动力优化准备了试验数据,提供了重要依据和奠定了良好基础。Dynamic Performance of a novel vibrationisolator that is made of reinforced foam plastics isinvestigated by experiment in this paper. First, dynamictest and the experimental device of the vibration isolatormade by foam plastics are set up. Next, the dynamic testof the vibration isolator is done and test data are obtained.And then, the test data are processed, analyzed andstudied. Experimental results show that dynamicperformance of the isolator has not only relation tovibration amplitude, but also to exciting frequency. Therestoring force of the isolator is influenced by excitingfrequency and vibration amplitude, and it has relation tothe deformation history. The isolator has nonlinearhysteretic characteristics. In dynamic condition. stiffnessand damping characteristics of the isolator are nonlinear.The study lays a good foundation for modeling andparameters identification, dynamic design and dynamicoptimization of the vibration isolator.

关 键 词：聚氨酯泡沫塑料 振动性能 试验研究 隔振材料 非线性滞后特性 

分 类 号：TB53[理学—物理]