基于平台机构尺寸参数的驾驶模拟器逼真度分析

Fidelity analysis of driving simulator based on dimension parameters of platform mechanism

提出一种基于平台机构尺寸参数确定洗出算法参数的方法,分析了不同的尺寸参数对模拟器逼真度的影响。首先根据平台机构尺寸参数确定出模拟器上平台最大线(角)位移;然后结合该线(角)位移与车辆实际运动信号辨识洗出算法参数;最后求得不同的尺寸参数与模拟器逼真度之间的关系。仿真结果表明:新的洗出算法参数使得平台在充分利用工作空间的基础上,提高了模拟器逼真度;并得到平台机构尺寸参数与模拟器逼真度表达式之间的对应关系图,不仅为洗出算法参数优化建立了一种新的有效途径,而且为从模拟器逼真度出发设计平台机构尺寸参数奠定了理论基础。

A kind of determining the wash-out algorithmic parameters based on dimension parameters of platform mechanism has been put forward; the influence of different dimension parameters on the simulator fidelity was analyzed. Firstly, the maximum linear （angular） displacement of simulator platform was determined according to the dimension parameters of platform mechanism, and then by combining this linear （angular） displacements with the actual motion signals of the vehicle to recognize the wash out algorithmic parameters and finally to seek out the relationship between the different dimension parameters and the simulator fidelity. The result of simulation showed that parameters of the new wash out algorithm made the platform raised the simulator fidelity based on a fully utilization of working space. And a relationship chart between the dimension parameter of platform mechanism and the expression of simulator fidelity was obtained, thus not only a kind of new effective way was established for the parametric optimization of wash out algorithm but also a foundation was laid for designing the dimension parameter of platform mechanism starting from the simulator fidelity.