Design method of engineered material arresting system of airfield runway

Abstract

The invention provides a design method of an engineered material arresting system of an airfield runway. The design method includes confirming mechanical property of arresting materials according to mechanical property curve of the arresting materials, confirming force provided by the arresting materials on undercarriages at the moment according to depth of the arresting materials pressed by the undercarriages of a flight at the last moment, describing dynamic behaviour in vertical direction of the undercarriages according to kinetic simulation of shock struts of the undercarriages, confirming lift force, resistance and pitch moment on the flight at the moment through flight aerodynamic force simulation, confirming kinematic parameter of the flight through kinematic simulation of the flight, confirming stopping distance, flight kinematic parameter and force on the undercarriages by simulating until the flight shuts off, and judging whether to adjust an arresting system design scheme. On the basis of flight stopping distance, the design method is capable of accurately calculating loads on the undercarriages of the flight, so that safety of the undercarriages is convenient to evaluate in the arresting system design, and an arresting system design plan meeting requirements can be convenient to make.

Description

technical field [0001] The invention relates to a simulation method required for designing an aircraft arresting system, which is used in the design process of the characteristic material arresting system at the end of an airport runway to calculate the aircraft stop distance, aircraft motion parameters and the load on the landing gear, and belongs to the aviation category. Background technique [0002] The safety of aircraft landing gear is not only one of the symbols of aircraft safety, but also plays a decisive and important role in the effectiveness of the arresting system. Therefore, the safety assessment of landing gear is of great significance in the design of aircraft arresting system. [0003] Publication No. 100476072 of the Chinese patent "airport runway safety arresting system and its computer dynamic simulation method" disclosed an airport runway safety arresting system and its computer simulation method on October 25, 2006. This method is mainly based on the e...

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Problems solved by technology

However, this method is mainly aimed at a single tire, and does not consider the mutual influence of each tire under the action of moving objects under the action of multiple tires, so it is not applicable to the design of an aircraft arresting system

[0005] When actually designing a characteristic material arresting system, it is necessary to consider the time history of the load on the aircraft when taxiing in the arresting system and the required stopping distance, but the relevant technologies disclosed so far are not applicable

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