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四轮转向汽车操纵稳定性分析 被引量:5
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作者 曾宇 陈思忠 杨林 《车辆与动力技术》 2010年第2期5-8,13,共5页
建立了二自由度四轮转向汽车模型的动力学方程,对其进行系统的理论分析得出了四轮转向汽车的质心侧偏角、横摆角速度、侧向加速度与前轮转角的传递函数.基于某四轮转向样车,对以零质心侧偏角为控制目标的前后轮转角比例四轮转向车辆的... 建立了二自由度四轮转向汽车模型的动力学方程,对其进行系统的理论分析得出了四轮转向汽车的质心侧偏角、横摆角速度、侧向加速度与前轮转角的传递函数.基于某四轮转向样车,对以零质心侧偏角为控制目标的前后轮转角比例四轮转向车辆的操纵动力学进行了仿真分析,将仿真结果与前轮转向车辆进行对比,阐明了四轮转向车辆的性能优势.研究结果可为评价四轮转向车辆的设计提供理论依据. 展开更多
关键词 车辆 四轮转向(4WS) 前轮转向(fws) 操纵稳定性 仿真
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Simulation design of fuze warhead system of air defense missile at very low altitude 被引量:1
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作者 Qi Zhao Guangyu Du +2 位作者 Bin Zhang Yanbin Zhai Yuruo Shi 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2017年第3期572-584,共13页
A novel simulation method for fuze warhead system (FWS) at very low altitude flight is proposed to solve adaptability issues of the traditional one in the naval battle. Firstly, a simulation system framework is presen... A novel simulation method for fuze warhead system (FWS) at very low altitude flight is proposed to solve adaptability issues of the traditional one in the naval battle. Firstly, a simulation system framework is presented. Then the detailed implementation of a novel general fuze model, a novel sea echo model and a novel warhead dynamic effectiveness power field algorithm including the simulation system are presented. Finally, simulation results show good performance of the proposed method. The proposed method can simulate the echo signal when the complex fuze antennas detect target and the sea at the same time, and can truly reflect the target positions hit by the warhead fragments. The proposed method can solve the existing problems in the FWS simulation system. 展开更多
关键词 fuze warhead system (fws) simulation fuze warhead matching sea echo fragment trajectory drifting
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