船舶
船舶
선박
SHIP & BOAT
2014年
5期
61-65
,共5页
葛涛%滕宪斌%徐燕铭%张仕海
葛濤%滕憲斌%徐燕銘%張仕海
갈도%등헌빈%서연명%장사해
曲轴%振动%不平衡%最小二乘法
麯軸%振動%不平衡%最小二乘法
곡축%진동%불평형%최소이승법
crankshaft%vibration%imbalance%least squares method
曲轴机构振动是柴油机整体振动的核心,加强柴油机曲轴机构的动态特性分析是研究柴油机振动机理和实施振动监测与故障诊断工作的重要内容。文章首先对曲轴机构的不平衡原因进行综合分析,然后设定曲轴振动信号,并结合最小二乘法原理对曲轴振动信号进行拟合,最后利用实验数据进行曲轴振动信号的不平衡量分析,并验证了本课题研究方法的可行性,为异常不平衡信号测取与分析提供方法与依据。
麯軸機構振動是柴油機整體振動的覈心,加彊柴油機麯軸機構的動態特性分析是研究柴油機振動機理和實施振動鑑測與故障診斷工作的重要內容。文章首先對麯軸機構的不平衡原因進行綜閤分析,然後設定麯軸振動信號,併結閤最小二乘法原理對麯軸振動信號進行擬閤,最後利用實驗數據進行麯軸振動信號的不平衡量分析,併驗證瞭本課題研究方法的可行性,為異常不平衡信號測取與分析提供方法與依據。
곡축궤구진동시시유궤정체진동적핵심,가강시유궤곡축궤구적동태특성분석시연구시유궤진동궤리화실시진동감측여고장진단공작적중요내용。문장수선대곡축궤구적불평형원인진행종합분석,연후설정곡축진동신호,병결합최소이승법원리대곡축진동신호진행의합,최후이용실험수거진행곡축진동신호적불평형량분석,병험증료본과제연구방법적가행성,위이상불평형신호측취여분석제공방법여의거。
The crankshaft vibration is crucial to the overall engine vibration, therefore enhance the dynamic characteristics analysis of the diesel engine crank mechanism vibration is the important content of the vibration mechanism study or the implementation of vibration monitoring and fault diagnosis work. First, this article analyzes the reason for the imbalance of the crank mechanism, and sets the crankshaft vibration signal. Second, it ifts the crankshaft vibration signal with the principle of the least squares method, and analyzes the crank unbalance vibration signal with experimental data. Finally, it verify the feasibility of the research method, and provides a method and basis for the measurements and analysis of the abnormal unbalanced signal.