Experiments on static characteristics of metal rubber particles
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摘要: 针对目前航空航天领域板壳结构较多,其模态成分密集、振动复杂等问题,提出了一种可用于各种复杂结构振动抑制的新型金属橡胶构件——金属橡胶颗粒.为了解及掌握这种新型金属橡胶构件的性能和设计规律,开展了有关金属橡胶颗粒的静态性能试验研究.通过试验测量了金属橡胶颗粒的静态迟滞回线,获得了金属橡胶颗粒的刚度和阻尼的范围.通过对比不同参数下的刚度和阻尼的试验结果,总结材料参数(丝材、螺旋卷和相对密度)和工艺参数(变形量和安装密度)等对金属橡胶颗粒的刚度特性和阻尼性能的影响规律.金属橡胶颗粒静态特性试验研究为金属橡胶颗粒的设计和工程应用奠定了基础.Abstract: According to problems of the high mode density of natural frequencies of plane-shell structure and a broad spectrum of aerodynamic excitation forces, a new metal rubber (MR) component was designed by improving the processing technology of MR. It is called metal rubber particles (MRP). The WDW3100 electronic universal testing equipment was used to obtain static characteristics of MRP damper experimentally. The average stiffness and loss factor of MRP was obtained by measured the static hysteresis loop. The material parameters and process parameters on the influence of stiffness and damping characteristics was obtained by experimental results. Through this study, it provids experimental basis for further research and engineering application of metal rubber particles damper.
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Key words:
- metal rubber particles /
- static characteristics /
- nonlinear stiffness /
- hysteresis curve
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