Double-layer active and passive electromechanical integrated vibration isolation device

Abstract

The invention discloses a double-layer active-passive electromechanical integrated type vibration isolation device. The double-layer active-passive electromechanical integrated type vibration isolation device comprises a passive upper rubber vibration isolator (a), an intermediate framework structure (c), a mounting bottom plate (d), four electromagnetic exciters (b), integrated type control signal conditioning equipment and acceleration signal conditioning equipment (f), the intermediate framework structure (c) is arranged between the upper rubber vibration isolator (a) and the mounting bottom plate (d), the four electromagnetic exciters (b) serve as active executing mechanisms symmetrically arranged at the left and right sides of the intermediate framework structure (c), and the integrated type control signal conditioning equipment and acceleration signal conditioning equipment (f) are symmetrically arranged in front and rear grooves of the intermediate framework structure (c). The double-layer active-passive electromechanical integrated type vibration isolation device can well inhibit the vibration due to wide-frequency band external disturbance excitation, and the double-layer active-passive electromechanical integrated type vibration isolation device is mainly used for controlling the vibration of different kinds of marine diesel engines, steam turbines, pumps, the like rotating and reciprocating mechanical equipment, nuclear emergency power generator sets and the like large power equipment.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to an active and passive vibration isolation device. Background technique [0002] Existing vibration isolation technologies are mainly divided into three types: active, passive, and active-passive composite. Passive vibration isolation technology does not require external energy, the device is simple, reliable, and easy to implement, and has been widely used in engineering. However, passive vibration isolation is only possible when the excitation frequency of the external disturbance is greater than the natural frequency of the vibration isolation system. If the natural frequency of the vibration isolation device is too low, it will cause problems such as excessive static deformation and instability of the entire system. Therefore, passive vibration isolation technology cannot achieve ideal control effects on low-frequency vibrations and is not suitable for large frequency changes....

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