一种机械设备隔振效果计算方法及其适用性研究

 李铜桥

(海军驻锦州地区军事代表室,辽宁 锦州 121000)
摘要:采用机械阻抗模型,提出了一种机械设备隔振装置的隔振效果计算方法,可用于计算全频段和分频段的隔振效果。对该方法进行了试验验证,结果表明其全频段隔振效果计算精度较高,而分频段隔振效果计算值则反映了隔振装置的平均隔振能力。对计算误差产生的原因进行了分析,并给出了该方法的适用范围。
关键词:隔振装置;隔振效果;机械阻抗;计算方法
中图分类号:TB535+.1           文献标志码:A        文章编号:1006-0316 (2013) 09-0041-04
A method for calculating isolation effect of machinery mounting system and analysis of its applicability
LI Tong-qiao
( The Naval Representative Office in Jinzhou Area, Jinzhou 121000, China )
Abstract:A method based on mechanical impedance model of machinery mounting system is presented to calculate the isolation effect in wide band and 1/3 octave bands respectively. To evaluate the effectiveness of this method, experiments are conducted on a test rig. Results show that the method has satisfactory isolation effect prediction accuracy in wide band. The isolation effects predicted in octave bands reflect the average isolation ability of mounting system and may deviate from tested results depending on the vibration characteristics of machinery. The factors influencing prediction accuracy the applicability of this method are analyzed.
Key words:machinery mounting system;isolation effect;mechanical impedance;calculation method
 
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收稿日期:2013-06-13
作者简介:李铜桥(1965-),男,湖北武汉人,本科,高级工程师,主要研究方向为机械设备制造、振动噪声控制技术。
 

 

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