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Passive magnetorheological tensile damping adaptive control method and device

An adaptive control, passive magnetic technology, applied in the field of magnetorheological damping, can solve the problems of only providing compressive damping, not providing tensile damping, complex structure, etc., achieving considerable application prospects, compact structure, volume and low weight effect

Active Publication Date: 2010-12-15
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the disadvantages of large volume, complex structure and only providing compressive damping but not tensile damping in the background technology, the purpose of the present invention is to provide a passive magnetorheological tensile damping adaptive control method and device

Method used

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  • Passive magnetorheological tensile damping adaptive control method and device
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  • Passive magnetorheological tensile damping adaptive control method and device

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Embodiment Construction

[0019] The present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0020] Such as figure 1 As shown, the holes at both ends of the outer cylinder 2 are respectively connected with the end cover 13 and the bottom cover 1, and the joints on both sides are sealed with O-rings. Both ends of the tube 4 are supported between the end cover 13 and the bottom cover 1, and there is a rubber seal between the soft magnetic inner tube 4 and the end cover 13; the two ends of the giant magnetostrictive material 9 installed in the soft magnetic inner tube 4 are respectively connected to the One end of the upper and lower permanent magnets 10, 8 is connected, and the other end of the upper and lower permanent magnets 10, 8 is respectively connected with an end of the upper yoke 11 and an end of the lower yoke 7, and the other end of the upper yoke 11 is connected with an end of the piston rod 12. The soft magnet inner cylinder 4 is connecte...

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Abstract

The invention discloses passive magnetorheological tensile damping adaptive control method and device. A soft magnet inner cylinder is arranged in an outer cylinder, both ends of a giant magnetostrictive material arranged in the soft magnet inner cylinder are respectively connected with one end of an upper permanent magnet and one end of a lower permanent magnet, the other end of the upper permanent magnet and the other end of the lower permanent magnet are respectively connected with one end of an upper field yoke and one end of a lower field yoke, the other end of the upper field yoke is connected with one end of a piston rod in the soft magnet inner cylinder, the other end of the piston rod extends out of an end cover, a T-shaped guide piston is arranged in a hole at the lower end of the soft magnet inner cylinder, the other end of the lower field yoke is connected with the large end of the T-shaped guide piston, and the small end of the T-shaped guide piston is sleeved with a spring and arranged in a center hole of a bottom cover; an input magnetic loop is formed by adopting the permanent magnets, the field yokes and magnetorheological fluid media; and an output magnetic loop is formed by adopting the giant magnetostrictive material, the permanent magnets, the field yokes, the magnetorheological fluid media and soft magnet materials. The invention omits coils and an external power supply and can realize the conversion from vibration mechanical energy of a controlled structure to magnetic field energy by only using few materials.

Description

technical field [0001] The invention relates to magnetorheological damping technology, in particular to a passive magnetorheological tensile damping adaptive control method and device. Background technique [0002] The magnetorheological damping technology uses magnetorheological fluid or magnetorheological elastomer as the damping element, and uses the magnetorheological effect (Magnetorheological Effect) to realize the damping effect. The magnetorheological damping device made by utilizing the magnetorheological effect has the characteristics of simple structure, quick response, easy control, low energy consumption, large damping force and wide adjustable range of damping force. It has been widely used in vehicle suspension systems, building structures (such as bridges, dams, high-rise buildings, etc.), brakes and clutches, recoil control of naval guns in military equipment, and vibration reduction of helicopter rotors. Active and semi-active control of vibrating structur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/53
Inventor 唐志峰吕福在顾晓蕾刘磊
Owner ZHEJIANG UNIV
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