噪声与振动控制2012，Vol.32Issue(1)：77-80,4.DOI:10.3969/j.issn.1006-1355-2012.01.018
某型叉车护顶架主观振动评估与试验模态分析
Subjective Vibration Evaluation and Modal Testing for the Overhead Guard of a Forklift Truck
许畅 1严天宏 1张震1
作者信息
- 1. 中国计量学院机电工程学院,杭州310018
- 折叠
摘要
Abstract
In this paper, the vibration of the overhead guard of a forklift is diagnosed. Firstly, the vibration signals are collected when the forklift is operating, and the signals corresponding to the worst subjective evaluation of comfort are extracted and analyzed. Then, the modal test of the overhead guard of the forklift is conducted, and the results are compared with the vibration signals corresponding to the worst comfort. It is found that the main reason of the forklift vibration which leads to the worst comfort is the resonance of the overhead guard excited by the engine. Since the modals of the overhead guard structure in the vicinity of the resonance frequency are very close one another, successive resonance will occur in the acceleration period, which is a serious impact on the comfort of the forklift. Finally, a scheme for reducing the vibration is proposed. A correlation between objective measurements and subjective evaluation is found by means of the proposed approach. This work supplies references for the vibration isolation design.关键词
振动与波/叉车/模态测试/隔振Key words
vibration and wave/forklift/modal testingm/vibration isolation分类
机械制造引用本文复制引用
许畅,严天宏,张震..某型叉车护顶架主观振动评估与试验模态分析[J].噪声与振动控制,2012,32(1):77-80,4.
