Integrated test platform for dynamic performance of aircraft steering gear

Abstract

The invention provides an integrated test platform for dynamic performance of aircraft steering gear, which comprises an aircraft under test, a dynamic torque loading system, a dynamic bending momentloading system, a bottom platform, a temperature control box, a controller and a pneumatic loop system. The platform adopts passive dynamic torque loading, avoids the problem of excess force under active loading, and can realize the simulation of load inertia and bending moment loading, simulate the flight state of the steering gear more truly, test the dynamic performance of the steering gear, inaddition, the platform can control the working environment temperature of the steering gear, and test the performance of the steering gear more realistically. On the one hand, it can measure the electromagnetic compatibility of the steering gear and the whole aircraft, on the other hand, it can test the aircraft multi-aircraft synchronization control algorithm according to the prediction of flight path and flight state.

Description

technical field [0001] 本发明涉及一种飞行器舵机动态性能综合测试平台。 Background technique [0002] 现代工业和科学技术的发展对产品的动态性能提出了更高的要求,尤其是在军事领域,飞行器舵机是实现飞行器姿态的俯仰、偏航、滚转等姿态变换运动的关键执行机构,舵机是一种高精度的伺服机构,舵机性能的好坏直接决定了飞行器飞行轨迹精度及动态响应品质。目前飞行器舵机主要包括液压舵机、气动舵机和电机舵机,研究主要集中在提高舵机的快速性和功率体积比。目前对于舵机的动态性能的实验研究主要采用主动力矩加载器来模拟舵机负载,测试舵机的扭矩的输出性能,这种方式能够测量舵机的输出扭矩能力,但是上述测量方式控制难度大,控制器需要控制舵机输出扭矩与加载器施加扭矩严格同步,否则可能会导致非线性失稳。失稳的结果是可怕的,其不但不能良好的测量舵机性能,而且会测试设备带来极大的破坏。除此之外,主动加载测量方式不能模拟舵机所驱动负载惯量,无法测量惯量这一因素对舵机动态性能的影响,并且舵机在运行过程中,不仅承受扭矩,还要承受较大弯矩,这些因素不仅对舵机的动态性能产生较大影响,而且直接影响舵机的可靠性和使用寿命。因此,目前的实验手段严重制约了飞行器舵机的发展。 Contents of the invention [0003] 鉴于上述问题,本发明的目的是提供一种飞行器舵机动态性能综合测试平台,采用被动式动态扭矩加载,避免了主动加载多余力的问题,并能够实现负载惯量模拟和弯矩加载,更为真实的模拟舵机的飞行状态,测试舵机动态性能,此外,该平台能够控制舵机的工作环境温度,更为真实的测试舵机的性能。并且测试平台能够进行多台舵机同步测试,一方面能够测量多机同步工作时舵机以及飞行器整体的电磁兼容等问题,另一方面能够根据飞行路线和飞行状态的预测,进行飞行器多机同步控制算法测试。 [0004] 为此,本发明提供一种飞行器舵机动态性能综合测试平台,包括:被测飞行器、动态扭矩加载系统、动态弯矩加载系统、底部平台、温控箱、控制器、气动回路系统;被测飞行器包括四部被测舵机,四部被测舵机90°分布;底部平台,采用铝合金焊接而成的箱体结构,设计有被测飞行器、动态扭矩加载系统、动态弯矩加载系统的安装接口,并为被测飞行器、动态扭矩加载系统、动态弯矩加载系统提供可...

AI Technical Summary

Problems solved by technology

At present, the experimental research on the dynamic performance of the steering gear mainly uses the active torque loader to simulate the load of the steering gear and test the torque output performance of the steering gear. This method can measure the output torque capability of the steering gear, but the above measurement method is difficult to control , the controller needs to control the output torque of the steering gear to be strictly synchronized with the torque applied by the loader, otherwise it may cause nonlinear instability

The result of instability is terrible, it not only can't measure the performance of the steering gear well, but also brings great damage to the test equipment

In addition, the active loading measurement method cannot simulate the load inertia driven by the steering gear, and cannot measure the influence of the inertia factor on the dynamic performance of the steering gear, and the steering gear not only bears torque but also withstands large bending during operation. These factors not only have a great impact on the dynamic performance of the steering gear, but also directly affect the reliability and service life of the steering gear

Therefore, the current experimental methods seriously restrict the development of aircraft steering gear.

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