中国机械工程 ›› 2026, Vol. 37 ›› Issue (1): 233-242.DOI: 10.3969/j.issn.1004-132X.2026.01.024

• 工程前沿 • 上一篇    

复杂地形环境下无人步履式挖掘机的车身姿态规划方法

赵丁选1(), 郭瑞1,2, 王硕3, 闫长长1,2, 王子鹤1, 张天赐1,2()   

  1. 1.河北省特种运载装备重点实验室, 秦皇岛, 066000
    2.燕山大学车辆与能源学院, 秦皇岛, 066000
    3.北京特种机电技术研究所, 北京, 100012
  • 收稿日期:2024-11-07 出版日期:2026-01-25 发布日期:2026-02-05
  • 通讯作者: 张天赐
  • 作者简介:赵丁选,男,1965年生,教授,博士研究生导师。研究方向为机械系统动力学及其仿真与控制。发表论文300余篇。E-mail: zdx@ysu.edu.cn
    张天赐*(通信作者),男,1993年生,讲师、硕士研究生导师。研究方向为无人驾驶工程车辆自主决策、数据挖掘与数据驱动设计、智能装备数字孪生。发表论文15篇。E-mail: ztc@ysu.edu.cn
    第一联系人:周彬,男,1988年生,副教授。研究方向为人车共驾、车辆智能控制。发表论文40余篇。E-mail: zhoubin@ctgu.edu.cn。董元发*(通信作者),男,1988年生,教授、博士研究生导师。研究方向为智能装备系统设计与优化。发表论文100余篇。E-mail: dongyf@ctgu.edu.cn
  • 基金资助:
    国家自然科学基金(U24A6008);河北省自然科学基金(E2024203257);河北省自然科学基金(E2024203065);河北省高等学校科学技术研究项目(BJ2025218)

Body Posture Planning Method for Unmanned Walking Excavators under Complex Terrain Environments

ZHAO Dingxuan1(), GUO Rui1,2, WANG Shuo3, YAN Changchang1,2, WANG Zihe1, ZHANG Tianci1,2()   

  1. 1.Hebei Key Laboratory of Special Carrier Equipment,Qinhuangdao,Hebei,066000
    2.School of Vehicle and Energy,Yanshan University,Qinhuangdao,Hebei,066000
    3.Beijing Institute of Special Electromechanical Technology,Beijing,100012
  • Received:2024-11-07 Online:2026-01-25 Published:2026-02-05
  • Contact: ZHANG Tianci

摘要:

非结构化地形作业中,无人步履式挖掘机的姿态规划对底盘稳定性与作业安全起着至关重要的作用。针对车身姿态控制问题,提出一种基于多目标优化的姿态规划方法。建立底盘的七自由度运动学模型,并利用NURBS曲线生成步行腿轨迹。以姿态偏差和能耗为优化目标,构建融合地形约束的非线性多目标规划模型。数学-物理联合仿真及实车实验表明,所提方法可保证无人步履式挖掘机以良好的姿态穿越复杂地形。

关键词: 无人步履式挖掘机, 多目标优化, 非均匀有理B样条曲线, 非线性轨迹规划

Abstract:

In unstructured terrain operations, the posture planning of UWE was of great significance for ensuring chassis stability and operational safety. A multi-objective optimization-based posture planning method was proposed herein. A 7-DOF kinematic model of the chassis was established, and the walking leg trajectories were generated by NURBS curves. A nonlinear multi-objective planning model integrating terrain constraints was constructed, with posture deviation and energy consumption were defined as optimization objectives. The proposed method was validated through high-fidelity mathematical-physical co-simulation and field experiments. The proposed planning method ensures that the UWE may traverse complex terrain with good posture.

Key words: unmanned walking excavator(UWE), multi-objective optimization, NURBS curve, nonlinear trajectory planning

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