中北大学学报（自然科学版）Issue(2)：134-139,6.DOI:10.3969/j.issn.1673-3193.2015.02.009
两栖车辆非线性横摇动力学参数辨识研究
Research on Dynamic Parameters Identification for Amphibious Vehicle Nonlinear Rolling Motion
摘要
Abstract
To identify the damping item parameters of nonlinear rolling motion and nonlinear restore item parameters of amphibious vehicle,and the free rolling motion decay experiment in calm water was car-ried out.Rolling motion angle velocity and angle acceleration were derived based on difference scheme, and then the least square method was adopted to determine nonlinear damping item and nonlinear restore item coefficients.For the free rolling motion decay curve of amphibious vehicle,the tested curve of am-phibious vehicle was filtered and smoothed,and then the nonlinear damping coefficients and nonlinear restore moment coefficients were successfully obtained.The obtained results show that this method which is only based on free rolling motion decay curve can identify the dynamics parameters of amphibi-ous vehicle,and the method is higher accuracy and simplified.关键词
两栖车辆/非线性横摇/参数辨识/非线性阻尼/非线性恢复项/最小二乘法Key words
amphibious vehicle/nonlinear rolling motion/parameter identification/nonlinear damping/nonlinear restore item/least square method分类
军事科技引用本文复制引用
马新谋,常列珍,侯宏花..两栖车辆非线性横摇动力学参数辨识研究[J].中北大学学报（自然科学版）,2015,(2):134-139,6.基金项目
总装“十二五”预研项目 （）
中北大学自然基金 （）
