新型交叉式静音钢轨的理论与试验研究

赵才友; 王平

doi:10.3969/j.issn.0258-2724.2013.02.016

新型交叉式静音钢轨的理论与试验研究

doi: 10.3969/j.issn.0258-2724.2013.02.016

赵才友,
王平

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出版历程
- 收稿日期: 2012-05-30
- 刊出日期: 2013-04-25

Theoretical Analysis and Experimental Investigation on Cross-Legged Silent Rail

摘要

摘要: 为降低轮轨噪音,提出了一种新型交叉式静音钢轨.与传统的静音钢轨不同,其在钢轨和阻尼层之间增加了一层扩展层,且扩展层与约束层交错布置.采用有限元法对该结构进行了优化设计,根据优化结果(扩展层宜用厚1 mm的铝材,阻尼层宜用IPN型阻尼材料,约束层宜用厚2 mm的钢材)制作实物并进行了试验测试.测试结果表明:在垂向和横向激励下,该交叉式静音钢轨振动持续的时间仅为标准钢轨的1/5,噪声声辐射声压级分别比标准钢轨降低10.4和13.2 dB.
- 轮轨噪声 /
- 阻尼 /
- 振动 /
- 交叉式静音钢轨
Abstract: In order to reduce wheel-rail noises, a cross-legged silent rail was designed. Unlike the traditional silent rail, an extension layer is added between rail and the damping layer, moreover, the extension layer and the constraining layer are interlaced mutually. The structure was optimized using the finite element method. Based on the optimized results that aluminum material with a thickness of 1 mm should be taken as the expansion layer, IPN damping material as the damping layer and 2 mm thick steel as the constraining layer, a prototype of the cross-legged silent rail was made and tested in laboratory. The tested results show that vibration duration time of the cross-legged silent rail is only 1/5 of the standard rail, and compared with the standard rail, its radiation sound pressure level decreases by 10.4 and 13.2 dB respectively at vertical excitation and lateral excitation.
- wheel-rail noise /
- damping /
- vibration /
- cross-legged silent rail

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参考文献(17)

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文章访问数: 1198
HTML全文浏览量: 62
PDF下载量: 448
被引次数: 0

新型交叉式静音钢轨的理论与试验研究

doi: 10.3969/j.issn.0258-2724.2013.02.016

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出版历程

Theoretical Analysis and Experimental Investigation on Cross-Legged Silent Rail

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出版历程

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