The Effect of Wire Rope Material on Vibration Characteristics

H. Dal, Murat Baklaci
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Abstract

Wire rope vibration isolators (WRI) are used to protect particularly sensitive and high technology products from severe dynamic loads such as shock and vibration. WRI is widely used in many industries, especially in the defense and space industry. In this study, the effect of rope material used in WRIs on vibration characteristics was experimentally investigated. WRIs were fabricated using nuflex, stainless steel and galvanized steel ropes as the main material component of the rope. Design and fabrication of 3 identical WRI models each with a rope diameter of 3 mm, namely Nufleks (NWRI), stainless (SWRI) and galvanized steel rope vibration isolator (GWRI), were performed. The produced WRI models were subjected to tensile-compression tests under different speed and pre-load conditions and then, force-displacement responses were obtained. In addition, dynamic vibration tests of WRI models were performed using the shaker system and accelerometers. As a result of the studies, it was observed that the rope material used in the WRIs significantly affected the vibration characteristics. When the quasi-static test results are examined, it is clearly understood that GWRI exhibits a more rigid characteristic compared to other models. At the same time, when the damping ratios obtained from hysteretic cycles are compared, it is clearly seen SWRI has the highest damping ratio. When the dynamic tests performed by shaker are examined, it is clearly seen that the isolator with the best vibration isolation characteristics is SWRI.  
钢丝绳材料对振动特性的影响
钢丝绳隔振器(WRI)用于保护特别敏感的高科技产品免受冲击和振动等剧烈动态载荷的影响。WRI被广泛应用于许多行业,特别是国防和航天工业。在本研究中,实验研究了wri中使用的绳索材料对振动特性的影响。wri的主要材料组成是采用柔性、不锈钢和镀锌钢绳。设计和制造了3种相同的、绳径均为3mm的WRI模型,即Nufleks (NWRI)、不锈钢(SWRI)和镀锌钢丝绳隔振器(GWRI)。对所建立的WRI模型进行了不同速度和预加载条件下的拉压试验,得到了模型的力-位移响应。此外,利用激振器系统和加速度计对WRI模型进行了动态振动试验。研究结果表明,wri中使用的绳索材料对其振动特性有显著影响。当对准静态试验结果进行检验时,可以清楚地了解到,与其他模型相比,GWRI表现出更强的刚性特征。同时,对比迟滞循环得到的阻尼比,可以明显看出SWRI的阻尼比最高。通过激振器的动态试验,可以清楚地看出,具有最佳隔振性能的是SWRI隔振器。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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