噪声与振动控制
譟聲與振動控製
조성여진동공제
NOISE AND VIBRATION CONTROL
2015年
2期
194-200
,共7页
李玉龙%白鸿柏%何忠波%路纯红
李玉龍%白鴻柏%何忠波%路純紅
리옥룡%백홍백%하충파%로순홍
振动与波%金属橡胶隔振器%动力学模型%粒子群优化算法%参数识别
振動與波%金屬橡膠隔振器%動力學模型%粒子群優化算法%參數識彆
진동여파%금속상효격진기%동역학모형%입자군우화산법%삼수식별
vibration and wave%metal-rubber isolator%dynamic model%particle swarm optimization algorithm%pa-rameter identification
研究了变激励条件下金属橡胶非线性隔振器的参数变化。以某型隔振器为研究对象,对其进行了静态试验及不同正弦激励条件下动态试验。借助双折线泛函本构关系的本构模型,利用粒子群优化算法对不同激励条件下的隔振器模型参数进行了识别,通过识别参数的对比得到了隔振器各参数在不同激励情况下的变化趋势。结果显示对金属橡胶非线性隔振系统进行动力学分析时,必须首先对实际工况下隔振器进行动态试验。再通过参数识别获取隔振器准确的数学模型,才能对金属橡胶隔振系统进行准确的动力学分析。为金属橡胶隔振系统的动力学分析提供了一般方法。
研究瞭變激勵條件下金屬橡膠非線性隔振器的參數變化。以某型隔振器為研究對象,對其進行瞭靜態試驗及不同正絃激勵條件下動態試驗。藉助雙摺線汎函本構關繫的本構模型,利用粒子群優化算法對不同激勵條件下的隔振器模型參數進行瞭識彆,通過識彆參數的對比得到瞭隔振器各參數在不同激勵情況下的變化趨勢。結果顯示對金屬橡膠非線性隔振繫統進行動力學分析時,必鬚首先對實際工況下隔振器進行動態試驗。再通過參數識彆穫取隔振器準確的數學模型,纔能對金屬橡膠隔振繫統進行準確的動力學分析。為金屬橡膠隔振繫統的動力學分析提供瞭一般方法。
연구료변격려조건하금속상효비선성격진기적삼수변화。이모형격진기위연구대상,대기진행료정태시험급불동정현격려조건하동태시험。차조쌍절선범함본구관계적본구모형,이용입자군우화산법대불동격려조건하적격진기모형삼수진행료식별,통과식별삼수적대비득도료격진기각삼수재불동격려정황하적변화추세。결과현시대금속상효비선성격진계통진행동역학분석시,필수수선대실제공황하격진기진행동태시험。재통과삼수식별획취격진기준학적수학모형,재능대금속상효격진계통진행준학적동역학분석。위금속상효격진계통적동역학분석제공료일반방법。
The parameters change rule of a nonlinear metal-rubber isolator under different incentive conditions was studied. Firstly, both the static experiment and the dynamic experiment under the conditions of different sinusoidal excita-tions were carried out. On this basis, the bilinear functional constitutive relation model was established. Then, the parameters of the metal-rubber isolator in different incentive conditions were identified by using Particle Swarm Optimization Algo-rithm. Finally, the parameters change rule of the nonlinear metal-rubber isolator was obtained by comparison of the identifi-cation results with the experimental results. It is shown that the dynamic experiment is necessary and the right parameters should be identified under the pertinent incentives before analyzing the nonlinear metal-rubber isolation system. The results of the study may provide a general method for dynamic analysis of the metal-rubber vibration isolation systems.