考虑支撑面虚拟弹性刚度的多支撑点反力计算

来源 :中国机械工程 | 被引量 : 0次 | 上传用户：jianbbk

【摘要】

：

基于作业过程中支撑面的弹性使支撑点产生微幅刚体运动这一客观物理事实,采用与宏观约束无关的微变量自由度来描述支撑点处的接触缝隙,并引入支撑面虚拟弹性刚度描述支撑面的抵抗能力.为克服虚拟刚度的“开关效应”给数值求解带来的困难,引入过渡函数将其光滑化.依据宏观载荷建立整体平衡方程,通过求解该非线性方程组得到具体的支撑反力.计算了多种支撑形式的支撑点反力,并与试验数据进行对比,验证了所提方法的有效性.

【作者】

：

徐金帅齐朝晖卓英鹏刘海波高凌翀

【机构】

：

大连理工大学工业装备结构分析国家重点实验室,大连,116024;太原重工股份有限公司工程机械研究所,太原,030021;慕尼黑工业大学物流搬运与起重研究所,慕尼黑,85748

【出处】

：

中国机械工程

【发表日期】

：

2021年22期

【关键词】

：

支撑反力虚拟弹性刚度单面约束微变量光滑化过渡函数虚功率

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考虑支撑面虚拟弹性刚度的多支撑点反力计算

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