振动与冲击
振動與遲擊
진동여충격
Journal of Vibration and Shock
2015年
20期
155-160
,共6页
王红霞%龚宪生%潘飞%谯艳娟
王紅霞%龔憲生%潘飛%譙豔娟
왕홍하%공헌생%반비%초염연
O 型钢丝绳隔振器%迟滞%仿真%识别方法%改进的归一化 Bouc-Wen 模型
O 型鋼絲繩隔振器%遲滯%倣真%識彆方法%改進的歸一化 Bouc-Wen 模型
O 형강사승격진기%지체%방진%식별방법%개진적귀일화 Bouc-Wen 모형
O-type wire-cable vibration isolator%hysteresis%simulation%identification method%modified normalized Bouc-Wen model
针对 O 型钢丝绳隔振器具有非线性弹性刚度、非对称迟滞动态特性，采用改进的归一化 Bouc-Wen 模型并基于该模型对钢丝绳隔振器动态特性参数识别方法进行研究。提出新的简单有效的两阶段识别方法进行参数辨识研究。通过数值仿真与周期性加载试验相结合方法对所提方法进行验证。结果表明，参数识别方法可准确有效识别出 O型钢丝绳隔振器模型参数，且试验迟滞曲线与识别模型迟滞曲线吻合较好。
針對 O 型鋼絲繩隔振器具有非線性彈性剛度、非對稱遲滯動態特性，採用改進的歸一化 Bouc-Wen 模型併基于該模型對鋼絲繩隔振器動態特性參數識彆方法進行研究。提齣新的簡單有效的兩階段識彆方法進行參數辨識研究。通過數值倣真與週期性加載試驗相結閤方法對所提方法進行驗證。結果錶明，參數識彆方法可準確有效識彆齣 O型鋼絲繩隔振器模型參數，且試驗遲滯麯線與識彆模型遲滯麯線吻閤較好。
침대 O 형강사승격진기구유비선성탄성강도、비대칭지체동태특성，채용개진적귀일화 Bouc-Wen 모형병기우해모형대강사승격진기동태특성삼수식별방법진행연구。제출신적간단유효적량계단식별방법진행삼수변식연구。통과수치방진여주기성가재시험상결합방법대소제방법진행험증。결과표명，삼수식별방법가준학유효식별출 O형강사승격진기모형삼수，차시험지체곡선여식별모형지체곡선문합교호。
A modified normalized Bouc-Wen model was adopted to describe the hysteretic behaviour of an O-type wire-cable vibration isolator which exhibits nonlinear elastic stiffness and asymmetric hysteresis dynamic behavior.The parametric identification of the O-type wire-cable vibration isolator was realized based on the modified normalized Bouc-Wen model.A new simple yet effective two-stage identification method was developed.Numerical simulations and periodic loading experiments were carried out to validate the proposed identification method.The results indicate that the proposed identification method is effective and accurate for identifying the model parameters of O-type wire-cable vibration isolator, and the experimental hysteresis loops are close to the identified hysteresis loops.
