基于双弹簧振子模型的飞艇起落架载荷研究

FAA-P-8110-2《飞艇设计准则》相关条款明确了飞艇起落架载荷的适航规范要求,为了使飞艇起落架 设计更好地满足适航条款,本文提出基于双弹簧振子模型的飞艇起落架载荷计算方法。根据经典动力学理论, 推导飞艇起落架系统的振动微分方程组;运用 Python语言的科学计算模块对模型进行编程、封装,形成便捷友 好的可视化仿真工具;以某载人飞艇型号为研究对象,分析影响起落架载荷的主要因素,并通过仿真计算起落 架载荷。结果表明:提出的基于双弹簧振子模型的飞艇起落架载荷计算模型满足FAA-P-8110-2条款对起落架 载荷计算的要求;在给定的气囊内外压差下,起落架载荷随着气囊压力的增加而减小。

Study of Landing Gear"s Load for Airship Based on the Double-springs" Vibration Model

In order to make the design of landing gear to fulfill the requirements of the airship criterion FAA-P-8110-2, a methodology of load calculation for landing gear was presented in this paper, which was based on the double-springs'' vibration model. In term of the typical theories of dynamics, the differential equations of the system were derived herein. A simulation tool for this model was developed based on Python scientific modules, which was built in visualization and friendly operation. Based on a manned airship, the main factors affecting the load of the landing gear are analyzed, and the reasonable values of the load are obtained by simulation. The results of this paper can be used as the inputs for structural design and strength analysis of airship landing gear.