机电工程技术
機電工程技術
궤전공정기술
Mechanical & Electrical Engineering Technology
2015年
10期
55-60
,共6页
许涛%王美令%张兆丰%韩清凯
許濤%王美令%張兆豐%韓清凱
허도%왕미령%장조봉%한청개
积油转子%拉格朗日方程%数值仿真
積油轉子%拉格朗日方程%數值倣真
적유전자%랍격랑일방정%수치방진
oil leakage rotor%Lagrange equation%numerical simulation
提出一种基于双支撑转子系统的力学简化模型,分析了含有旋转腔体积油故障的转子系统动力学特性。首先,将转子腔体中积油简化为集中质量油团,采用拉格朗日方程,建立了该系统的动力学方程,基于方程解析,分析了不同转速下系统的位移频率响应变化。结果表明,积油转子在旋转过程中,当转速超过系统临界转速时,会出现共振锁频现象。
提齣一種基于雙支撐轉子繫統的力學簡化模型,分析瞭含有鏇轉腔體積油故障的轉子繫統動力學特性。首先,將轉子腔體中積油簡化為集中質量油糰,採用拉格朗日方程,建立瞭該繫統的動力學方程,基于方程解析,分析瞭不同轉速下繫統的位移頻率響應變化。結果錶明,積油轉子在鏇轉過程中,噹轉速超過繫統臨界轉速時,會齣現共振鎖頻現象。
제출일충기우쌍지탱전자계통적역학간화모형,분석료함유선전강체적유고장적전자계통동역학특성。수선,장전자강체중적유간화위집중질량유단,채용랍격랑일방정,건립료해계통적동역학방정,기우방정해석,분석료불동전속하계통적위이빈솔향응변화。결과표명,적유전자재선전과정중,당전속초과계통림계전속시,회출현공진쇄빈현상。
On account of the operation faults caused by the oil leakage in rotor cavity, to explore its dynamic characteristics, a double-support simplified rotor model has been proposed. In the model,leak oil is transformed into a concentrated mass oil-block. Then the dynamic equation is deduced by the Lagrange equation, based on the numerical simulation, vibration responses caused by the rotating speed are investigated. Result shows that frequency-locking phenomenon will appear when the rotating speed exceeds the first critical speed.