电动复合力矩加载系统的设计
发布时间：2019-04-29 12:51
【摘要】：电动加载系统是在实验室条件下模拟飞行器在空中飞行时舵面所承受的气动载荷，是飞行器舵系统进行半实物仿真试验的重要设备。针对飞行器舵面在空中所承受的多种载荷，，复合力矩加载系统通过在原有扭矩加载系统的基础上加入了弯矩加载系统，更加真实的模拟和复现飞行器舵面在空中所受的各种气动载荷，实现舵系统快速、有效的实验验证。因此，设计一种复合力矩加载系统，并对其进行相关研究有着重要的理论意义和实际工程应用价值。 论文对国内外加载系统的研究成果和发展现状进行了研究和分析，通过分析飞行器舵面的气动载荷谱，提出了研制复合力矩加载系统的必要性。文中说明了复合力矩加载系统的组成，并概述了其工作原理，采用机械最优化设计理念，对复合力矩加载系统中的机械加工构件进行了设计计算，使系统在满足实际工作要求的前提下达到最优设计，并在动、静态加载方式下对结构轴的机械特性进行了校核。建立了电动加载系统的完整数学模型，通过分析和研究加载系统多余力矩的产生机理和影响多余力矩大小的主要因素，提出了有效抑制多余力矩的方法。采用了PID控制与舵机指令直接前馈控制的复合控制方法和基于参考模型的自适应补偿法对系统中多余力矩进行消除，实现了电动加载系统的快速、高精度控制，并通过对校正后的系统进行仿真分析验证了该方法的有效性。 最后，根据实际测试需求完成了整个复合力矩加载系统的方案制定，分别对系统的硬件和软件系统进行了设计，并依据实际需求对系统中的主要器件进行了选型，在确定系统操作流程后设计出了软件操作界面。通过仿真实验分析，验证了电动复合力矩加载系统的可行性。
[Abstract]:Electric loading system is an important equipment in hardware-in-the-loop simulation test of aircraft rudder system, which is used to simulate the aerodynamic load on the rudder surface of aircraft in the air under laboratory conditions. The composite moment loading system adds a bending moment loading system based on the original torque loading system, aiming at the multiple loads on the rudder surface of the aircraft in the air. More real simulation and reproduction of all kinds of aerodynamic loads on the rudder surface of the vehicle in the air to realize the rapid and effective experimental verification of the rudder system. Therefore, the design of a composite moment loading system and its related research has important theoretical significance and practical engineering application value. In this paper, the research achievements and development status of loading system at home and abroad are studied and analyzed. By analyzing the aerodynamic load spectrum of the rudder surface of aircraft, the necessity of developing composite moment loading system is put forward. In this paper, the composition of the composite moment loading system is described, and its working principle is summarized. The mechanical machining components in the composite moment loading system are designed and calculated by using the idea of mechanical optimum design. The optimal design of the system is achieved on the premise of satisfying the practical work requirements, and the mechanical characteristics of the structural shaft are checked under the dynamic and static loading mode. The complete mathematical model of the electric loading system is established. By analyzing and studying the generating mechanism of the redundant torque of the loading system and the main factors affecting the magnitude of the redundant torque, an effective method to restrain the redundant torque is put forward. The compound control method of PID control and direct feedforward control of the steering gear and the adaptive compensation method based on reference model are adopted to eliminate the redundant torque in the system, and the fast and high precision control of the electric loading system is realized. The validity of the method is verified by simulation and analysis of the corrected system. Finally, according to the actual testing requirements, the scheme of the whole composite moment loading system is completed, the hardware and software systems are designed, and the main components in the system are selected according to the actual requirements. After determining the operation flow of the system, the interface of software operation is designed. The feasibility of the electric composite moment loading system is verified by the analysis of simulation experiments.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V216.8
[Abstract]:Electric loading system is an important equipment in hardware-in-the-loop simulation test of aircraft rudder system, which is used to simulate the aerodynamic load on the rudder surface of aircraft in the air under laboratory conditions. The composite moment loading system adds a bending moment loading system based on the original torque loading system, aiming at the multiple loads on the rudder surface of the aircraft in the air. More real simulation and reproduction of all kinds of aerodynamic loads on the rudder surface of the vehicle in the air to realize the rapid and effective experimental verification of the rudder system. Therefore, the design of a composite moment loading system and its related research has important theoretical significance and practical engineering application value. In this paper, the research achievements and development status of loading system at home and abroad are studied and analyzed. By analyzing the aerodynamic load spectrum of the rudder surface of aircraft, the necessity of developing composite moment loading system is put forward. In this paper, the composition of the composite moment loading system is described, and its working principle is summarized. The mechanical machining components in the composite moment loading system are designed and calculated by using the idea of mechanical optimum design. The optimal design of the system is achieved on the premise of satisfying the practical work requirements, and the mechanical characteristics of the structural shaft are checked under the dynamic and static loading mode. The complete mathematical model of the electric loading system is established. By analyzing and studying the generating mechanism of the redundant torque of the loading system and the main factors affecting the magnitude of the redundant torque, an effective method to restrain the redundant torque is put forward. The compound control method of PID control and direct feedforward control of the steering gear and the adaptive compensation method based on reference model are adopted to eliminate the redundant torque in the system, and the fast and high precision control of the electric loading system is realized. The validity of the method is verified by simulation and analysis of the corrected system. Finally, according to the actual testing requirements, the scheme of the whole composite moment loading system is completed, the hardware and software systems are designed, and the main components in the system are selected according to the actual requirements. After determining the operation flow of the system, the interface of software operation is designed. The feasibility of the electric composite moment loading system is verified by the analysis of simulation experiments.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V216.8
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