| 基于统计能量分析方法的柴油机机体表面振动研究 |
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| 引用本文： | 黄永仲,赵明.基于统计能量分析方法的柴油机机体表面振动研究[J].船海工程,2008,37(5). |
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| 作者姓名： | 黄永仲 赵明 |
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| 作者单位： | 1. 广西玉柴机器股份有限公司,广西玉林,537000
2. 天津大学内燃机燃烧学国家重点实验室,天津,300072 |
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| 摘 要： | 针对柴油机活塞敲击力引起的机体表面振动,建立了统计能量分析子系统,利用试验方法获取了子系统的模态密度,并估算出不同频带内子系统的等效质量,进而得到子系统的内部损耗因子和耦合损耗因子。应用统计能量分析方法对ZH1110柴油机由活塞敲击引起的机体表面振动进行了计算,得到振动速度响应。通过与试验结果相比较,证明应用统计能量分析方法预测柴油机机体表面振动是可行的。
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| 关 键 词： | 柴油机 振动 活塞敲击 统计能量分析 |
The Block Surface Vibration of Diesel Engine Based on Statistical Energy Analysis |
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| Authors: | HUANG Yong-zhong ZHAO Ming |
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| Abstract: | Focusing on the surface vibration of diesel engine block induced by piston slap,a subsystem model of statistical energy analysis was constructed in this paper.The modal density of the subsystem,the equivalent masses,internal loss factors and coupling loss factors were obtained by the experiment.Then,the block surface vibration induced by piston slap on ZH1110 diesel engine is calculated and the velocity response of the surface vibration is acquired by Statistical Energy Analysis.The result comparison between the calculation and the experiment showed that it is feasible to predict the block surface vibration of the Diesel Engine using Statistical Energy Analysis. |
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| Keywords: | diesel vibration piston slap statistical energy analysis |
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