基于振动识别的车轮-地形交互的特拉力学模型选择和地形参数识别为拖轮行星巡航器的地形参数识别
Fengtian Lv1,2,3,4, Nan Li1, Haibo Gao1
1State Key Laboratory of Robotics and System, Harbin Institute of Technology, Harbin 150001, China.
Sensors (Basel, Switzerland)
|December 23, 2023
概括
这项研究引入了一种基于振动的新方法,用于行星探测器识别车轮-地形相互作用类 (WTIC) 并确定地形参数. 这使得用于不同地形的精确地力学模型成为可能,改善了漫游车的模拟和控制.
科学领域:
- 机器人技术和自主系统
- 行星探测工程 行星探测工程
- 机械工程 机械工程
背景情况:
- 准确地形参数识别对于高准确度模拟和控制行星探测器至关重要.
- 不同的地形需要不同的车轮-地形相互作用类 (WTIC) 和相应的地形力学模型.
- 基于WTIC的地面机械模型之间的切换对于在各种环境中运行的漫游车来说至关重要.
研究的目的:
- 开发一种速度独立的基于振动的方法,用于识别车轮-地形交互类 (WTIC).
- 为了使行星探测器在穿越不同地形时能够自动切换地球力学模型.
- 准确识别地形参数,以增强探测器模拟和控制.
主要方法:
- 将车轮与地形的相互作用分为三个不同的类别,用于地力学模型切换.
- 开发并分析了与每个WTIC相应的三轮振动模型.
- 提取和非尺寸化的振动特征,以确保速度独立.
- 提出了一种基于振动特征的识别方法,用于WTIC识别.
主要成果:
- 成功实施了一种速度独立的基于振动的方法来识别WTIC.
- 证明了在不同地形上的地形力学模型的有效地形参数识别.
- 对于估计的车轮-地形相互作用力,获得的相对误差小于16% (硬),12% (石) 和9% (沙子).
结论:
- 拟议的基于振动的方法对WTIC在行星探测器中的识别和地形参数识别有效.
- 这种方法提高了漫游车在不同地形上的适应性和性能.
- 精确地形参数识别可以提高漫游车模拟的可靠性和控制性能.
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