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A platform for research: civil engineering, architecture and urbanism
Turnout frog area MTMD vibration reduction system under complex load condition and control method of turnout frog area MTMD vibration reduction system
The invention discloses a turnout frog area MTMD damping system under a complex load condition and a control method thereof, and the method comprises the steps: S1, building a finite element model of a turnout frog area, and obtaining the modal information of a frog structure through modal analysis; s2, according to the modal information of the turnout frog structure model, determining modal order and frequency needing to be controlled; s3, according to the modal characteristics of the finite element model of the turnout frog area, determining the modal shape of each order and the mounting position of each sub TMD; s4, formulating different design schemes according to an extended fixed-point theory and a multi-modal control design method, and calculating parameters and quantity of each sub-TMD; and S5, establishing a turnout frog area MTMD finite element model in combination with the sub-TMD parameters in the MTMD system calculated by each scheme, comparing the vibration acceleration response difference of the frog center position of each MTMD system, and selecting the optimal sub-TMD parameters and number. The MTMD technology is applied to the turnout frog area, the vibration response of the turnout frog area is effectively controlled, the vibration reduction effect of the turnout frog area is improved, and the environment vibration requirement of the turnout frog area is met.
一种复杂荷载条件下道岔辙叉区MTMD减振系统及其控制方法，包括：S1、建立道岔辙叉区有限元模型，通过模态分析得到辙叉结构的模态信息；S2、根据道岔辙叉结构模型模态信息，确定需要控制的模态阶数与频率；S3、根据道岔辙叉区有限元模型模态特征，确定各阶模态振型，以及各子TMD安装位置；S4、根据扩展定点理论与多模态控制设计方法，制定不同设计方案，计算各子TMD参数与数量；S5、结合各方案计算的MTMD系统中子TMD参数，建立道岔辙叉区MTMD有限元模型，比较各MTMD系统的岔心位置振动加速度响应差别，选择最优子TMD参数与数量。本发明采用MTMD技术应用于道岔辙叉区，有效地控制了道岔辙叉区振动响应，提高了道岔辙叉区减振效果，适应道岔辙叉区环境振动要求。
Turnout frog area MTMD vibration reduction system under complex load condition and control method of turnout frog area MTMD vibration reduction system
The invention discloses a turnout frog area MTMD damping system under a complex load condition and a control method thereof, and the method comprises the steps: S1, building a finite element model of a turnout frog area, and obtaining the modal information of a frog structure through modal analysis; s2, according to the modal information of the turnout frog structure model, determining modal order and frequency needing to be controlled; s3, according to the modal characteristics of the finite element model of the turnout frog area, determining the modal shape of each order and the mounting position of each sub TMD; s4, formulating different design schemes according to an extended fixed-point theory and a multi-modal control design method, and calculating parameters and quantity of each sub-TMD; and S5, establishing a turnout frog area MTMD finite element model in combination with the sub-TMD parameters in the MTMD system calculated by each scheme, comparing the vibration acceleration response difference of the frog center position of each MTMD system, and selecting the optimal sub-TMD parameters and number. The MTMD technology is applied to the turnout frog area, the vibration response of the turnout frog area is effectively controlled, the vibration reduction effect of the turnout frog area is improved, and the environment vibration requirement of the turnout frog area is met.
一种复杂荷载条件下道岔辙叉区MTMD减振系统及其控制方法，包括：S1、建立道岔辙叉区有限元模型，通过模态分析得到辙叉结构的模态信息；S2、根据道岔辙叉结构模型模态信息，确定需要控制的模态阶数与频率；S3、根据道岔辙叉区有限元模型模态特征，确定各阶模态振型，以及各子TMD安装位置；S4、根据扩展定点理论与多模态控制设计方法，制定不同设计方案，计算各子TMD参数与数量；S5、结合各方案计算的MTMD系统中子TMD参数，建立道岔辙叉区MTMD有限元模型，比较各MTMD系统的岔心位置振动加速度响应差别，选择最优子TMD参数与数量。本发明采用MTMD技术应用于道岔辙叉区，有效地控制了道岔辙叉区振动响应，提高了道岔辙叉区减振效果，适应道岔辙叉区环境振动要求。
Turnout frog area MTMD vibration reduction system under complex load condition and control method of turnout frog area MTMD vibration reduction system
一种复杂荷载条件下道岔辙叉区MTMD减振系统及其控制方法
ZHANG BIN (author) / ZENG CHENGLIN (author) / REN GAOFENG (author) / FENG QINGSONG (author) / ZHU PENGGANG (author) / CHEN ZHENSHUO (author)
2025-01-14
Patent
Electronic Resource
Chinese
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