Vibration suppression on a platform by using vibration isolation and mitigation devices
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A new kind of vibration isolation and mitigation device with high damping is designed and fabricated for reducing dynamic responses of a platform under the excitation with wide frequency range. Tests are carried out to consider the influence of the frequency and amplitude of excitation on the properties of the device. The dynamic model of the platform incorporating with the vibration isolation and mitigation devices is established, and dynamic responses of the mitigated platform are calculated under different excitations. It can be shown from comparison between responses of the mitigated and unmitigated structures in time domain and frequency domain that the devices can significantly reduce dynamic responses of the platform.
KeywordsVibration suppression Vibration isolation Platform Dynamic response
This study was financially supported by the National Key Basic Research 973 Program of China, Science and Technological Innovation Leading Young Talents Program of the Ministry of Science and Technology, National Natural Science Foundation of China with Granted Number 11572088, Key Research and Development Plan of Jiangsu Province with Granted Number BE2015158, Research and Innovation Project for College Graduates of Jiangsu Province with Granted Number KYLX15_0088, and the Fundamental Research Funds for the Central Universities of China. These supports are gratefully acknowledged. A Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions.
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