Quasi-zero stiffness vibration isolation-energy harvesting integrated device and application
A quasi-zero stiffness and vibration isolation technology, applied in the field of quasi-zero stiffness vibration isolation-energy harvesting integrated devices, can solve the problems of curved surface processing difficulty, processing difficulty and cost increase, etc., and achieve outstanding vibration isolation effect and simple structure
Pending Publication Date: 2022-07-29
NORTHWESTERN POLYTECHNICAL UNIV
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Problems solved by technology
[0005] In the prior art, the hydraulic cylinder realizes the quasi-zero stiffness of the system, the bearing body of the ball slideway provides the negative stiffness for the system, and the linear spring provides the positive stiffness. However, due to the difficulty in processing the curved surface, the processing difficulty and cost increase
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[0032] The embodiments described below with reference to the accompanying drawings are exemplary, and are intended to explain the present invention and should not be construed as limiting the present invention.
[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention.
[0034] refer to...
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The invention discloses a quasi-zero stiffness vibration isolation-energy harvesting integrated device and application, and belongs to the field of vibration energy harvesting and vibration isolation. Comprising a main frame, a bearing platform, an electromechanical transformation unit, a double-wing oscillator structure and a positive stiffness module, and the bearing platform is installed on the main frame through the double-wing oscillator structure and the positive stiffness module; negative stiffness is provided through the double-wing oscillator structure, positive stiffness is provided through the positive stiffness module, and quasi-zero stiffness vibration isolation is achieved through combination of the negative stiffness and the positive stiffness. And vibration energy capture is completed through the electromechanical conversion unit. The double-wing oscillator structure provides negative rigidity, the positive rigidity module provides positive rigidity, and quasi-zero rigidity vibration isolation is achieved through combination of the double-wing oscillator structure and the positive rigidity module. The electromechanical conversion unit is connected with the double-wing vibrator structure and the positive stiffness module, vibration energy is collected, and conversion from the vibration energy to electric energy is achieved through an electromagnetic conversion method; the power supply is simple in structure, can be widely applied to the fields of machining, rail transit, aerospace and the like, and supplies power to a micro-electro-mechanical system or embedded equipment.
Description
technical field [0001] The invention belongs to the fields of vibration energy capture and vibration isolation, in particular to a quasi-zero stiffness vibration isolation-energy capture integrated device and application. Background technique [0002] Vibration is a ubiquitous phenomenon in nature, which can bring many benefits to human beings, but also bring harm. Favorable vibrations can be transformed into other forms of energy available, produce wonderful musical notes, transmit signals, etc., bringing great benefits to the improvement of human living standards and the development of military technology. However, when the vibration exceeds a certain limit, it will cause damage to human health and facilities, making the equipment unable to work normally. For example, the vibration and noise caused by the complex road environment have a serious impact on the stability of the tactical vehicle-mounted directed energy weapon system, which makes the system unable to effective...
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Login to View More IPC IPC(8): H02K35/02
CPCH02K35/02
Inventor 杨涛谢佳衡刘嘉一
Owner NORTHWESTERN POLYTECHNICAL UNIV