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Helicopter anti-crash seat based on magneto-rheological damper

A magneto-rheological damper and anti-crash technology, which is applied in the arrangement of seats, support/fixing devices, vibration suppression adjustment, etc., can solve the problem of insufficient anti-shock effect, low energy consumption of energy absorbers, and inability of anti-crash seats. Adapt to the crash height and crash attitude of the fuselage to achieve the effects of fast response time, increased range of adjustable damping force, and full protection

Active Publication Date: 2019-05-03
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a helicopter anti-crash seat based on a magneto-rheological damper, which is used to solve the problem that the existing variable-load helicopter anti-crash seat cannot adapt to different crash heights and fuselage crash attitudes, and the energy absorber used Problems such as small performance and insufficient impact resistance

Method used

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  • Helicopter anti-crash seat based on magneto-rheological damper
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  • Helicopter anti-crash seat based on magneto-rheological damper

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments.

[0035] Such as Figure 1-Figure 5As shown, the anti-crash seat for a helicopter based on a magnetorheological damper disclosed in this embodiment includes a seat body, a vibration isolation platform mechanism, a magnetorheological damper assembly and a control system.

[0036] Such as figure 1 , figure 2 As shown, the seat body used in this embodiment includes a chair pan 1, a seat cushion 2, a back cushion 3, a backrest 4, a headrest 5, a beam 9, and a ball joint 2 19.

[0037] The backrest 4 is fixedly installed on the back side of the chair p...

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Abstract

The invention relates to a helicopter anti-crash seat based on a magneto-rheological damper. The helicopter anti-crash seat includes a seat body which is formed by a seat bucket and a backrest, wherein a vibration isolation platform mechanism is arranged below the seat bucket; the vibration isolation platform mechanism includes a static platform, second magneto-rheological damper assemblies and amovable platform; the movable platform is fixedly connected to the seat bucket; the upper and lower ends of second magneto-rheological damper assemblies are connected to the movable platform and the static platform respectively through spherical hinges; six second magneto-rheological damper assemblies are set; each second magneto-rheological damper assembly includes a magneto-rheological damper; six spherical hinges are set, and are divided by two upper groups and two lower groups; each group of spherical hinges are arranged on the movable platform or the static platform in a equilateral triangle structure; each spherical hinge is coordinated with two second magneto-rheological damper assemblies; and opposite ends of two second magneto-rheological damper assemblies with the same sphericalhinge connecting ends are staggered by an included angle. The helicopter anti-crash seat based on a magneto-rheological damper can be adapted to different crash heights of the helicopter and differentcrash posture of the fuselage of the helicopter, and the energy absorber used has large energy consumption and good impact resistance.

Description

technical field [0001] The invention relates to the technical field of aviation seats, in particular to a helicopter anti-crash seat based on a magneto-rheological damper. Background technique [0002] With the development of helicopter technology, various types of helicopters are widely and massively used in military and civilian fields. Unlike fixed-wing aircraft, helicopters fly at a low altitude and have a complex flying environment. Although the flying speed is not high, they often need to hover and operate at ultra-low altitudes. When the helicopter is attacked or crashes due to failure, the driver's response time for emergency treatment is short, and the crash is prone to serious consequences, so the helicopter is required to have corresponding anti-crash capabilities. [0003] The anti-crash measures of helicopter, except adopting energy-absorbing landing gear, anti-crash nose and fuselage structure, anti-crash oil tank and rotor structure, important in addition is ...

Claims

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Application Information

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IPC IPC(8): B64D11/06B64D25/04F16F9/53
Inventor 王强张保成张开升赵波刘明斗
Owner OCEAN UNIV OF CHINA
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