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Self sensing method and system for cylinder inductive magnetic rheology damper integrated relative displacement

A magneto-rheological damper and relative displacement technology, applied in the direction of shock absorbers, shock absorbers, springs/shock absorbers, etc., can solve the problem of affecting the overall reliability and stability of the vibration control system, increasing the cost of the vibration control system and Structural complexity, shortening the service life of the system, etc., to achieve the effect of improving adaptive performance, improving adaptability, and reducing cost

Inactive Publication Date: 2007-11-14
CHONGQING UNIV
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AI Technical Summary

Problems solved by technology

No matter which sensing method is used, the separately configured sensors not only increase the cost and structural complexity of the entire vibration control system, but also the sensors directly exposed to the external environment are easily affected by the external environment (such as mechanical collision, water seepage, oil seepage, etc.). Electromagnetic waves, etc.) interference or even damage, thus affecting the overall reliability and stability of the vibration control system, shortening the service life of the system

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  • Self sensing method and system for cylinder inductive magnetic rheology damper integrated relative displacement
  • Self sensing method and system for cylinder inductive magnetic rheology damper integrated relative displacement
  • Self sensing method and system for cylinder inductive magnetic rheology damper integrated relative displacement

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Embodiment Construction

[0034] Structure and method of the present invention are specifically described below in conjunction with embodiment and accompanying drawing:

[0035] The method is to wind an induction coil on the cylinder of the single cylinder piston type magneto-rheological damper, and to make the output of the induction coil The information carries the relative displacement information between the piston rod and the cylinder, so that the magneto-rheological damper integrates the relative displacement sensor to realize the continuous controllability of the damping force and the self-sensing of the vibration status of the controlled object. The specific realization is reflected in the attached drawing on the system shown.

[0036] It can be seen from Fig. 1 that the excitation magnetic field generated by the excitation coil 12 passes through the magneto-rheological fluid throttling gap 28 from the piston head 14, the non-magnetically conductive winding cylinder 7 and the induction coil 9, ...

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Abstract

The present invention is cylinder induction type self sensing method and system for MR damper. One induction coil is wound onto the cylinder of single-cylinder piston type MR damper and excited with the harmonic magnetic field of the exciting coil wound on the piston head of the MR damper to output information of relative displacement state between the piston rod and the cylinder, and this constitute the basic structure of cylinder induction type integrated relative displacement sensor. One active magnetoelectric relative displacement sensor is integrated to the MR damper structure to realize the real-time detection of relative displacement information between the controlled target and the supporting body. The continuous damping force controlling characteristic of magnetic reological fluid damper is combined to make the semi-active damping system of MR damper possess continuously controllable self sensing and damping force.

Description

technical field [0001] The invention relates to a magneto-rheological damper, in particular to a cylinder induction integrated relative displacement self-sensing method and system of the magnetorheological damper. Background technique [0002] In recent years, due to the successive appearance of magnetorheological (Magnetorheological, MR) fluids, magnetorheological dampers (abbreviated as MR dampers) and their continuous improvement in performance, the semi-active vibration reduction system based on MR dampers has attracted people's attention. great concern. Compared with other semi-active vibration reduction systems, the MR damper-based semi-active vibration reduction system has the advantages of large damping force, stable performance (insensitive to impurities and temperature), low required voltage, low energy consumption, and low cost. The semi-active vibration reduction system based on MR dampers is mainly composed of sensors, MR dampers, springs, current drivers, cont...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/53
CPCF16F9/535
Inventor 王代华赖大坤
Owner CHONGQING UNIV
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