哈尔滨工程大学学报2011，Vol.32Issue(9)：1223-1227,5.DOI:10.3969/j.issn.1007-7043.2011.09.022
坐姿人体垂向振动特性及其三自由度模型参数
Vertical vibration characteristics of seated human bodies and the parameters of a biodynamic model with three degrees of freedom
摘要
Abstract
The underwater skirt pile gripper plays an important part in the installation process of an offshore oil platform jacket. In order to study the clip function, material, and shape of the pressing block in underwater conditions, the skirt pile gripper was investigated. Parameters of the pressing block tooth were designed and optimized, and the contact mechanical model of the pressing block teeth and the steel pile was constructed. The nonlinear relationship between the pressing force and the depth of the pressing block tooth was analyzed by LS-DYNA explicit dynamic a-nalysis. The critical uniform pressing force of the steel pile was ascertained according to the thin shell elastic-plastic stability theory, and the relationship between the pressing force and grip function of the skirt pile gripper was given. The experimental prototype of the skirt pile gripper was developed, experiments were carried out under the actual working conditions, and the effectiveness of the skirt pile gripper was validated by experimental results, providing an effective solution for the problem of large-weight object gripping.关键词
坐姿人体/垂向振动/视在质量/生物动力学模型Key words
underwater skirt pile gripper/ contact/ dynamic analysis/ elastic-plastic分类
交通工程引用本文复制引用
侯之超,高江华,何乐..坐姿人体垂向振动特性及其三自由度模型参数[J].哈尔滨工程大学学报,2011,32(9):1223-1227,5.基金项目
国家自然科学基金资助项目(50675110) （50675110）
汽车安全与及节能国家重点实验室自主科研基金资助项目(ZZ080082). （ZZ080082）
