内装式空中发射箭伞系统多体动力学分析

为解决传统动力学在空中发射系统建模时推导工作量大、过程繁琐的问题,针对内装式空中发射箭伞系统特点,应用多体动力学理论建立了箭伞系统动力学模型,采用嵌入式约束法处理系统的多体动力学问题,导出具有形式简洁、计算方便、便于推导且有一定通用性的箭伞多体动力学模型.应用所建多体动力学模型对箭伞系统运动过程进行了仿真及分析,仿真结果与试飞测量数据的对比验证了模型的有效性,结果表明,所建模型能真实地反映实际问题,可为相应空中发射系统的设计、性能预测和评估提供依据.

Multi-Body Dynamic Analysis of Internally Carried Air-Launched Vehicle-Parachute System

To avoid the shortcomings of the hard work and the complicated process while building the air-launched system model by using the traditional theory,aiming at vehicle-parachute system's characteristics,the dynamic model of the vehicle-parachute system was proposed by the multi-body dynamic method.The embedded restriction method was used to deal with the system's multi-body dynamic problem.A dynamic model with simple form,easy calculation,commonality vehicle-parachute system was given.The vehicle-parachute sy...