Mauverability and Control Surface Strength Criteria for Large Airplanes

Dickinson, Holley B.

doi:10.2514/8.1215

Cited by 7 publications

(4 citation statements)

References 3 publications

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“…Large aircraft is the crown of modern industry and an important embodiment of a country's comprehensive national strength, and it is an important guarantee for national security and an important pillar for national economic development [1,2] . In the flight control system of large aircraft, wheel brake control system is one of the subsystems with independent functions, which plays the role of bearing the weight and load of aircraft and providing braking function in take-off and landing [3,4] .…”

Section: Introductionmentioning

confidence: 99%

Study on nonlinear dynamic behavior and stability of aviation pressure servo valve-controlled cylinder system

Song

Wang

et al. 2022

Nonlinear Dyn

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In this paper, for the phenomenon of self-excited oscillation caused by nonlinear factors in a large aircraft wheel brake control system, the nonlinear dynamic behavior of the pressure servo valve-controlled cylinder system (PSVCS) is studied，and the influence law of the key parameters on the nonlinear self-excitation behavior is obtained. On this basis, the stability of the PSVCS is analyzed both in time domain and frequency domain, and it is proved in principle that the PSVCS is a stable self-closed loop control system. Firstly, the nonlinear dynamics model of the PSVCS is established in this paper. Secondly, using the method of phase plane analysis, the nonlinear dynamic behavior of the PSVCS and the influence law of key parameters on the system are studied. Thirdly, the nonlinear system of the PSVCS is transformed into a segmented local linear system, and the stability of the prestage and the power stage are analyzed and studied respectively. Finally, through a performance test platform, which is used to simulate the load of PSVCS, the theoretical analysis results of this paper are verified experimentally under a variety of working conditions. The final experimental results show that both the nonlinear dynamic model established in this paper and the influence law of the key parameters obtained by the phase plane analysis on the nonlinear self-excited oscillation behavior are correct, and the relevant conclusions can provide a reference for the design of the braking system control system.

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Section: Introductionmentioning

confidence: 99%

Study on nonlinear dynamic behavior and stability of aviation pressure servo valve-controlled cylinder system

Song

Wang

et al. 2022

Nonlinear Dyn

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“…Moreover, they are also important for the development of national economy. [2,3]. In the landing gear system, the wheel brake control system is one of the subsystems with independent functions.…”

Section: Introductionmentioning

confidence: 99%

Parameter Sensitivity Analysis of a Brake Pressure Control System in Aviation Using an Electro-Hydraulic Servo Valve

Wang

Shi

et al. 2022

Electronics

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The landing gear system has the task of bearing the weight of the aircraft, bearing the impact load, and providing the braking function in the process of the aircraft taxiing, take-off, and landing. There are many parameters in the aviation brake pressure servo valve-controlled cylinder system (ABPSVCS) which will have a significant influence on the dynamic behavior of the system. Sensitivity analysis is an effective method to analyze the influence of system parameters on system characteristics, especially for nonlinear systems. The trajectory sensitivity method based on the description of system state space is used for the parameter sensitivity analysis of the ABPSVCS. By grouping various parameters for sensitivity analysis, the law of parameter sensitivity of each group is obtained, and the results are verified by experiments. The results can lay a theoretical and experimental foundation for the related research work of the aviation brake pressure servo valve.

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“…As this paper will show and as was brought out by Beman and Frost, 1 maneuvering loads appear to be a complicated function of not only what the airplane and its control system can do but, in addition, what the pilot will or chooses to do. 2 The experimental work has been handicapped because of the difficulties of making accurate measurements in flight and the absence of adequate instruments or methods. In general, the structural measurements made in flight in the past have been crude.…”

Section: Introductionmentioning

confidence: 99%