Heterogeneous embedded dual-redundancy steering engine

An embedded, double-redundant technology, applied to aircraft parts, aircraft controls, aircraft transmissions, etc., can solve problems such as overall system failure, and achieve the effects of reducing system failure rate, avoiding failure, and small axial size

Active Publication Date: 2020-04-21
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of dual redundancy backup is designed for redundancy by using the same principle, and its failure mode is also the same, and a single failure mode is likely to cause the overall failure of the system

Method used

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  • Heterogeneous embedded dual-redundancy steering engine
  • Heterogeneous embedded dual-redundancy steering engine
  • Heterogeneous embedded dual-redundancy steering engine

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Embodiment Construction

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail in combination with the embodiments and accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. The technical solutions of the present invention will be described in detail below in conjunction with the embodiments and drawings, but the scope of protection is not limited thereto.

[0033] Such as figure 1 —— figure 2 , is a heterogeneous built-in dual-redundancy steering gear when it is retracted and extended. The steering gear includes two parts: EHA 2 and EMA 1. The piston of EHA 2 is hollow, and EMA 1 is embedded in EHA 2. Inside the piston.

[0034] Such as image 3 As shown, EMA1 includes: motor encoder 3, first motor 4, coupling 5, second sealing ring 6, r...

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Abstract

The invention discloses a heterogeneous embedded dual-redundancy steering engine, and belongs to the technical field of servo control and actuation. The heterogeneous embedded dual-redundancy steeringengine specifically comprises an electromechanical static pressure actuator (EHA) and an electromechanical actuator (EMA). The EMA is integrally embedded in the hollow piston of the EHA; two actuators with different principles of the EHA and the EMA are combined through an embedded structure; mutual backup of EHA and EMA is achieved, system overall failure caused by the same failure principle isavoided, the system failure rate is greatly reduced, sealing treatment is conducted in an EHA piston, a ball screw in the EMA is immersed in lubricating oil to be fully lubricated, and the reliabilityof an aircraft control system is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of servo control and actuation, and specifically relates to a heterogeneous embedded dual-redundancy steering gear. Background technique [0002] Due to the high temperature, high humidity and smog in the natural environment where the aircraft is located, the aging and failure of aircraft parts are accelerated, and the probability of aircraft failure is increased. Once the control system of the aircraft breaks down, the pilot loses control of the aircraft and will cause heavy losses and casualties. Therefore, it is of great significance to improve the reliability of the aircraft control system. [0003] During the process of takeoff, flight and landing, the aircraft needs to adjust the aircraft attitude continuously by adjusting the rudder surface of the aircraft. The aircraft controls the steering gear through the flight control computer and then controls the rudder surface. It can be seen that the steeri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C13/50B64C13/42
CPCB64C13/504B64C13/505B64C13/42
Inventor 汪成文杜伟张震阳陈帅权龙
Owner TAIYUAN UNIV OF TECH
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