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Anti-interference torque simulator

A simulator and torque technology, applied in aircraft component testing, aircraft parts, ground devices, etc., can solve problems such as difficulty in equipping engine main pumps, improve simulation accuracy and reliability, and efficiently mobilize resources.

Active Publication Date: 2014-08-20
SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for simulating the torque of the engine main pump to solve the problem that it is difficult to equip a real engine main pump in the ground test of the engine control system, and to improve the anti-interference ability of the torque simulator so that it can be applied to signal Test environment with severe interference

Method used

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Embodiment Construction

[0036] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0037] First, the data acquisition module stores the torque characteristic of the main engine pump to the static random access memory through the RS232 communication module for recall. The micro control unit sends a digital control signal X according to the torque characteristics of the main engine pump in the static random access memory 数字电压 (4V), converted to an analog control signal by a digital-to-analog converter X 模拟电压(4V), sent to the hysteresis amplifier by the D-type nine-pin plug. The hysteresis amplifier controls the voltage control signal X sent by the data control acquisition module according to the conversion range of the aforementioned input and output signals. 模拟电压 (4V) is converted into a current control signal without residual magnetism X 模拟电流 (1.2A) sent to the hysteresis brake. The hysteresis brake is b...

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Abstract

The invention discloses an anti-interference torque simulator, and relates to a method for simulating the torque of a main pump of an engine in a ground test. The anti-interference torque simulator is characterized by comprising a data control collecting module, a hysteresis amplifier, a hysteresis brake, a torque transducer, an angular transducer, a frequency voltage conversion module and a signal conditioning module. According to the anti-interference torque simulator, the combination of the hysteresis amplifier and the hysteresis brake is adopted as the torque signal generating mode, the response time is short, the good linear relation exists between the control quantity and torque signals, control precision is high, and the anti-interference capacity is improved in the design.

Description

technical field [0001] The invention belongs to the field of aircraft design, and relates to a method for simulating the torque of an engine main pump in a ground test. Background technique [0002] The torque generated by the movement of the main engine pump is an important load of the engine control system, but the real main pump of the engine is expensive and difficult to disassemble, so the torque of the main pump needs to be simulated in the ground test. In most researches in China, torque motors are usually used for the simulation of torque signals, but the response time of torque motors is slow, and it is difficult to meet the control accuracy requirements for real-time systems. In addition, in most studies, the signal interference problem in the specific test environment is rarely considered. Contents of the invention [0003] The purpose of the present invention is to provide a method for simulating the torque of the engine main pump to solve the problem that it ...

Claims

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Application Information

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IPC IPC(8): B64F5/00B64F5/60
Inventor 张明田慧超刘建民
Owner SHENYANG AIRCRAFT DESIGN INST AVIATION IND CORP OF CHINA
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