金属橡胶包覆管路阻尼结构减振性能研究

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振动与冲击 ›› 2019, Vol. 38 ›› Issue (23) : 239-245.

论文

金属橡胶包覆管路阻尼结构减振性能研究

肖坤，白鸿柏，薛新，吴乙万

作者信息 +

Vibration reduction performance of metal rubber coated pipeline damping structure

XIAO Kun,BAI Hongbai,XUE Xin,WU Yiwan

Author information +

文章历史 +

摘要

提出薄片型金属橡胶制备难点，并解决了其制备难题。基于双折线模型，对管路包覆阻尼结构做力学分析及合理性简化，建立合适的力学模型，利用等效线性化方法将单自由度滞迟系统力学模型做线性等效，分析了金属橡胶刚度和阻尼随激振力变化规律，并进行了试验验证。同时提出表征包覆阻尼结构减振性能的表征量，通过试验研究了金属橡胶包覆阻尼结构的减振特性随其成型密度、包覆层数、激励量级的变化规律，为管路系统减振等工程应用提供了理论和实验依据。

Abstract

Based on the bi-fold line hysteresis model, the mechanical analysis and reasonable simplification of a coated pipeline damping structure were done to establish its appropriate mechanical model.The mechanical model of a single-DOF hysteretic system was linearized equivalently using the equivalent linearization method to analyze the variation law of metal rubber’s stiffness and damping with variation of excitation force, and conduct test verification.Meanwhile, the characteristic quantity was proposed to characterize damping performance of a coated pipeline damping structure.Variation laws of a metal rubber coated pipeline damping structure’s damping characteristics with variation of its forming density, number of coated layers and magnitude of excitation were studied with tests to provide theoretical and test bases for vibration reduction engineering application of pipeline systems.

导出引用

肖坤，白鸿柏，薛新，吴乙万. 金属橡胶包覆管路阻尼结构减振性能研究[J]. 振动与冲击, 2019, 38(23): 239-245

XIAO Kun,BAI Hongbai,XUE Xin,WU Yiwan. Vibration reduction performance of metal rubber coated pipeline damping structure[J]. Journal of Vibration and Shock, 2019, 38(23): 239-245

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