金属丝网橡胶压缩力学性能研究
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摘要
对金属丝网橡胶进行了静态压缩试验。利用控制变量法研究了压缩量、相对密度、金属丝丝径、丝材和承压面积对金属丝网橡胶压缩力学性能的影响,并对平均刚度和能量耗散系数随压缩量和相对密度的变化关系进行了研究。试验结果表明:随着压缩量的增加,金属丝网橡胶非线性力学特性逐渐增强;相对密度越大,金属丝网橡胶承压能力越强;金属丝的丝径和丝材主要影响金属丝网橡胶非线性阶段的力学特性,丝径越大,丝材越硬,承压能力越强;承压面积越大,金属丝网橡胶的承压和耗能性能越好;随着压缩量的增加,平均刚度增大,承压能力增强,能量耗散系数减小,减震性能降低;随着相对密度的增加,平均刚度和能量耗散系数均增大,承压能力和减震性能均增强。
A static compression experiment for metal wire mesh rubber was carried out.The influence of several important factors such as compression amount,relative density,wire diameter,wire material and bearing area on the compression properties was studied by using control variable method,and the relations among average stiffness,energy dissipation coefficient with compression amount,relative density were also studied.Experimental results show that along with the increase of compression amount,the nonlinear mechanical properties of metal wire mesh rubber become gradually obvious;with the increase of relative density,the bearing capacity improves;wire diameter and wire material mainly influence on the mechanical properties of metal wire mesh rubber on nonlinear stage,the larger wire diameter and the harder wire material result in the higher compressive capacity;the greater bearing area provides better compressive capacity and energy dissipation performance;with the increase of compression amount,the average stiffness increases,and the compressive capacity improves,the energy dissipation coefficient reduces but the damping performance decreases;with the increase of relative density,the metal wire mesh rubber presents the larger average stiffness,the higher energy dissipation coefficient and better compressive capacity and damping performance.
A static compression experiment for metal wire mesh rubber was carried out.The influence of several important factors such as compression amount,relative density,wire diameter,wire material and bearing area on the compression properties was studied by using control variable method,and the relations among average stiffness,energy dissipation coefficient with compression amount,relative density were also studied.Experimental results show that along with the increase of compression amount,the nonlinear mechanical properties of metal wire mesh rubber become gradually obvious;with the increase of relative density,the bearing capacity improves;wire diameter and wire material mainly influence on the mechanical properties of metal wire mesh rubber on nonlinear stage,the larger wire diameter and the harder wire material result in the higher compressive capacity;the greater bearing area provides better compressive capacity and energy dissipation performance;with the increase of compression amount,the average stiffness increases,and the compressive capacity improves,the energy dissipation coefficient reduces but the damping performance decreases;with the increase of relative density,the metal wire mesh rubber presents the larger average stiffness,the higher energy dissipation coefficient and better compressive capacity and damping performance.
引文
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[2]李冬伟,毛志俊.一种金属橡胶元件建模方法研究.军械工程学院学报[J].2005,17(2):64-66(LI Dong-wei,MAO Zhi-jun.Research on a new method for modeling of metal rubber[J].Journal of Ordnance Engineering College,2005,17(2):64-66(in Chinese))
[3]邓宗全,王少纯.三支撑月球着陆器缓冲性能实验研究[J].哈尔滨工业大学学报,2007,39(1):32-34(DENG Zong-quan,WHANG Shao-chun.Experimental researches on buffer characteristics of lunar lander with three legs[J].Journal of Harbin Institute of Technology,2007,39(1):32-34(in Chinese))
[4]李中郢,齐乃明,刘墩等.金属橡胶弹性与多孔性结合的应用实例[J].哈尔滨工业大学学报,1999,31(3):100-102(LI Zhong-ying,QI Nai-ming,LIU Dun,et al.Application of Elasticity Combined with Poriness of Metalrubber[J].Journal of Harbin Institute of Technology,1999,31(3):100-102(in Chinese))
[5]马艳红,郭宝亭,朱梓根.金属橡胶材料静态特性的研究[J].航空动力学报,2004,19(3):326-331(MA Yanhong,GUO Bao-ting,ZHU Zi-gen.Static Characteristics of Metal-Rubber[J].Journal of Aerospace Power,2004,19(3):326-331(in Chinese))
[6]李宇燕,黄协清,毛文雄.金属橡胶五次非线性干摩擦系统振动响应计算方法研究[J].宇航学报,2005,26(5):620-624(LI Yu-yan,HUANG Xie-qing,MAO Wen-xiong.Research on processing method of singularity detection and noise elimination based on wavelet transform for data measured in Launch vehicle aviation[J].Journal of Astronautics,2005,26(5):620-624(in Chinese))
[7]李雨蕾.金属橡胶减震及密封构件的设计与应用[D].哈尔滨工程大学,2013:15-24(LI Yu-lei.Design and application on damping and seal member of metal rubber[D].Harbin Engineering University,2013:15-24(in Chinese))
[8]李玉龙,何忠波,白鸿柏等.金属橡胶的研究及应用进展[J].兵器材料科学与工程,2011(1):103-107(LI Yulong,HE Zhong-bo,BAI Hong-bai,et al.Advances in research and application of metal rubber[J].Ordnance Material Science and Engineering,2011(1):103-107(in Chinese))
[9]毛晨曦,李素超,李惠.三向隔震不锈钢丝金属橡胶力学性能试验研究[J].世界地震工程,2010,26(4):66-72(MAO Chen-xi,LI Su-chao,LI Hui.Mechanical Behavior of Stainless Steel Metallic Pseudo-rubber for ThreeDirectional isolation[J].World Earthquake Engineering,2010,26(4):66-72(in Chinese))
[10]Zhang B,Lang Z Q,Billings S A,et al.System identification methods for metal rubber devices[J].Mechanical Systems and Signal Processing,2013,39(1-2):207-226.
[11]梅小龙,赵俊生,张保成等.压缩长度对金属橡胶减震器刚度的影响[J].噪声与振动控制,2013(1):204-207(MEI Xiao-long,ZHAO Jun-sheng,ZHANG Bao-cheng,et al.Effect of compressed length on the stiffness of metal rubber vibration absorber[J].Journal of Sound and Vibration,2013(1):204-207(in Chinese))
[12]董秀萍,张力.新型材料金属橡胶建模及应用[M].北京:化学工业出版社,2010:1-18(DONG Xiu-ping,ZHANG Li.New Material Modeling and Application of Metal-Rubber[M].Beijing:Chemical Industry Press,2010:1-18(in Chinese))
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