Experimental Analysis of Dynamic Stiffness Coefficient of the New Mn-Cu Alloy Annular Parts

被引：2

作者：

王成林 ^{[1
]}

张之敬 ^{[1
]}

叶鑫 ^{[1
]}

金鑫 ^{[1
]}

温立伟 ^{[1
]}

雷竹芳 ^{[2
]}

王永朝 ^{[2
]}

机构：

[1] School of Mechanical and Vehicular Engineering,Beijing Institute of Technology, Beijing 100081,China

[2] Luoyang Ship Material Research Institute

来源：

Journal of Beijing Institute of Technology | 2007年 / 01期

关键词：

Mn-Cu alloy; viscoelastic; stiffness coefficient; base excitation resonance mass (BERM) method;

D O I：

10.15918/j.jbit1004-0579.2007.01.010

中图分类号：

TG115 [金属的分析试验（金属材料试验）];

学科分类号：

080502 ;

摘要：

Based on excitation-resonance mass testing principle, a proper experiment testing system is designed for annular parts. The dynamics characters of the axis sleeve, which is made of a new Mn-Cu alloy and used as a vibration reductor in high acceleration rotary testing machine for fusee, is investigated. The relationship between stiffness coefficient and utilizing frequency is obtained, and the simplified dynamics model of crystal is established. From the viewpoint of crystal microstructure of the Mn-Cu alloy, the experiment result is analyzed by the viscoelastic theory, and the characters of stress and strain in the condition of high frequency are discussed. The results indicate that the Mn-Cu alloy annular parts are fit to be used on the high accleration rotary testing machine for fusee.

引用

页码：45 / 49

页数：5

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