Journal
IEEE-ASME TRANSACTIONS ON MECHATRONICS
Volume 20, Issue 1, Pages 254-262Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TMECH.2014.2338932
Keywords
Active vibration control; nonlinear system; quasi-zero stiffness (QZS); scissor-like structure (SLS); vibration sensor
Categories
Funding
- National Natural Science Foundation of China [61374041]
- GRF projects of HK RGC [15206514, 517810]
- Hong Kong Polytechnic University
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A novel 3-D quasi-zero-stiffness (3DQZS) system is proposed to construct a 3-D sensor system for absolute motion measurement in vibration systems. The 3DQZS system is achieved by employing a predeformed scissor-like structure. With mathematical-modeling and the harmonic balance method, the nonlinear dynamic response of the 3-D sensor system is deeply analyzed. It is shown that this novel 3DQZS-based sensor system is very effective and reliable in 3-D absolute motion measurement in vibration systems. A case study in active vibration control using the proposed 3-D sensor indicates that much better vibration control performance can be readily achieved compared with conventional methods using a similar linear feedback controller. This novel sensor system should provide an alternative or much better solution to many vibration control problems in various engineering practices.
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