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Controllable vibration isolator based on magnetic current change elastic element and damping element coupled action

A magnetorheological damper and magnetorheological elasticity technology, applied in vibration suppression adjustment, non-rotational vibration suppression, etc., can solve problems such as uncontrollable elastic characteristics of vibration isolators, asymmetric compression and restoration damping characteristics, etc., to achieve expansion Elastic adjustment range, avoiding volume compensation problems, and improving sealing reliability

Inactive Publication Date: 2008-12-17
CHONGQING UNIV
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  • Abstract
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Problems solved by technology

This structure not only leads to asymmetric compression and recovery damping characteristics, but also the elastic characteristics of the vibration isolator are uncontrollable, which is different from the ideal controllable suspension components required by the engine vibration isolation system

Method used

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  • Controllable vibration isolator based on magnetic current change elastic element and damping element coupled action
  • Controllable vibration isolator based on magnetic current change elastic element and damping element coupled action
  • Controllable vibration isolator based on magnetic current change elastic element and damping element coupled action

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Embodiment Construction

[0014] The technical solution of the present invention will be further described in detail according to the accompanying drawings.

[0015] The controllable vibration isolator based on the coupling effect of the magnetorheological elastic element and the damping element is a controllable vibration isolation device that uses the magnetorheological fluid damper in the disc extrusion mode and the magnetorheological elastic element in the shear mode in series. It includes two parts, the damping adjustment unit and the stiffness adjustment unit, and the vibration is transmitted between the two through a rigid connecting rod.

[0016] Such as figure 1 Shown is the overall structure diagram of the controllable vibration isolator based on the coupling effect of the magneto-rheological elastic element and the damping element of the present invention, the base of the engine is connected with the support tray 26 of the vibration isolator through threads, and the vibration isolator seat 1...

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Abstract

The invention relates to an engine vibration isolation device of a magneto-rheological fluid damper in extrusion mode and a magneto-rheological elastomer in shearing mode for supporting static loads. The vibration isolation device comprises two pars of a damping adjusting unit and a rigidity adjusting unit; the damping adjusting unit is connected with the rigidity adjusting unit through a rigid connecting rod; the vibration of an engine causes the connecting rod to move upwards and downwards, so that the magneto-rheological fluid in the damping adjusting unit flows in radial direction and shearing occurs to the magneto-rheological elastomer in the rigid adjusting unit; a magnetic field generated by two exciting coils can be respectively adjust damping parameters and rigidity parameters of a vibration isolator. The magneto-rheological vibration isolator can meet the independent adjustment of the damping parameters and the elastic parameters of the vibration isolator under different vibrational excitation conditions, and achieve the coupling control of the transmission of engine vibration energy, and has great realistic significance in improving the technical level and market competence of special vehicles.

Description

technical field [0001] The invention belongs to the field of engine vibration control, in particular to a controllable damping and controllable elastic characteristic suspension element in a single-layer or double-layer engine intelligent vibration isolation system. Background technique [0002] The existing disclosed magneto-rheological vibration isolation devices have different structures. They mainly use rubber or metal elastic elements as static load supporting elements, and their elastic characteristics cannot be controlled. The damping adjustment of the magnetorheological isolator mainly uses the deformation of the capsule filled with magnetorheological fluid to force the magnetorheological fluid to flow in the damping channel, and the damping characteristics of the vibration isolator are controlled by adjusting the magnitude of the excitation current. This type of MR vibration isolator must rely on the elastic deformation of the capsule to accommodate the MR fluid pas...

Claims

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Application Information

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IPC IPC(8): F16F9/53F16F15/03
Inventor 廖昌荣刘会兵余淼李锐陈伟民
Owner CHONGQING UNIV
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