基于逆向动力学的步兵头盔舒适性数值分析

doi:10.3969/j.issn.1000-1093.2015.02.019

兵工学报 ›› 2015, Vol. 36 ›› Issue (2): 321-326.doi: 10.3969/j.issn.1000-1093.2015.02.019

基于逆向动力学的步兵头盔舒适性数值分析

杨洋，徐诚，管小荣，王亚平

(南京理工大学机械工程学院, 江苏南京 210094)

收稿日期:2014-03-12 修回日期:2014-03-12 上线日期:2015-04-07
作者简介:杨洋（1988—），男，博士研究生
基金资助:
国防基础科研计划项目（2014年）

Numerical Analysis of Comfort of Military Helmets Based on Inverse Dynamics

YANG Yang, XU Cheng, GUAN Xiao-rong, WANG Ya-ping

(School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China)

Received:2014-03-12 Revised:2014-03-12 Online:2015-04-07

摘要/Abstract

摘要： 为了研究头盔对士兵头颈部肌肉活动的影响，建立了“盔—头—颈”肌骨模型。采用肌群激活程度作为头颈部舒适性评价标准，通过肌肉活动度最大/最小模型解决肌肉募集冗余问题，基于逆向动力学分析了头盔质量、质心位置和下颚带束紧力对头颈部肌群活动特性的影响规律。结果表明：在矢状面内，头盔质量和质心位置共同影响颈部肌群激活；在冠状面内，当头盔质量产生的附加侧弯力矩小于相应的阈值时，颈部肌群激活基本上不随头部质心位置的变化而变化；提高束紧力有利于增强头盔的跟随稳定性但增加了下颚肌群的激活程度。文中建立的“盔—头—颈”模型可以计算不同状态下肌肉激活程度的变化，头盔的设计和使用过程中可以采用该技术进行定量分析。

关键词: 兵器科学与技术, 步兵头盔, 肌骨模型, 肌群激活程度, 肌肉激活, 逆向动力学

Abstract: A “helmet-head-neck” musculoskeletal model is established to investigate the effect of helmet on soldier’head and neck muscular activities. The muscle activation is used as a comfort evaluation criterion and the muscle redundancy problem is solved by the “minimum-fatigue” criterion.The influences of the helmet weight, center of mass and tightening force of the lower jaw belt on the activities of muscle groups of head and neck are studied based on inverse dynamics. The results show that the weight andcentroid position of helmet have the effects on muscle activation in the sagittal plane. The neck muscle activation has little change when additional lateral bending moment is less than the corresponding threshold in the coronal plane. Enhancing the tightening force is advantageous to enhance the stability of helmet,which increases the activation of jaw muscles.The proposed musculoskeletal model can be used to calculate the change of muscle activation under different situations and conduct a quantitative analysis for helmet design.

Key words: ordnance science and technology, military helmet, musculoskeletal model, level of muscle activation, muscle activation, inverse dynamics

中图分类号:

TB18

杨洋，徐诚，管小荣，王亚平. 基于逆向动力学的步兵头盔舒适性数值分析[J]. 兵工学报, 2015, 36(2): 321-326.

YANG Yang, XU Cheng, GUAN Xiao-rong, WANG Ya-ping. Numerical Analysis of Comfort of Military Helmets Based on Inverse Dynamics[J]. Acta Armamentarii, 2015, 36(2): 321-326.

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基于逆向动力学的步兵头盔舒适性数值分析

Numerical Analysis of Comfort of Military Helmets Based on Inverse Dynamics

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