老年骨盆FE模型的验证及与儿童和成人骨盆模型的比较

Q4 Engineering

International Journal of Vehicle Safety Pub Date : 2021-06-22 DOI:10.1504/ijvs.2021.10039031

Hequan Wu, Xiaoshun Deng, Xiaoyan Qian, Xuehui Zhan

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引用次数: 0

摘要

为了研究车祸中骨盆损伤的机制及不同年龄组间的差异，本文建立了老年骨盆模型并进行了验证。将老年骨盆模型与青少年骨盆模型和儿童骨盆模型进行比较。结果表明，老年人盆腔模型的生理尺寸和几何尺寸与青少年相似，但与儿童有较大差异。与其他两种模型相比，老年骨盆模型在4 ~ 15 m/s不同的冲击速度下，峰值力和Dforce(最大力下的挠度)响应最强，最大挠度响应最弱。在三种模型中，峰值力和Dmax分别随冲击能量呈指数和线性增长。最易受伤的部位是坐骨耻骨、髂骶交界处和髋臼区。

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The validation of the elderly pelvic FE model and comparison with the pelvis models of children and adults

For studying the pelvic injury mechanism and the difference among different age groups in the car crash, elderly pelvic model was developed and validated in this paper. The elderly pelvis model was compared with the young people's pelvis model and the children's pelvis model. The results show that the physiological and geometric size of pelvic model of elderly is similar to that of young people, but both of them are quite different from the children's. Compared with the other two models, the elderly pelvic model has the strongest response of peak force and Dforce (deflection at maximum force), but the weakest response of maximum deflection under different impact velocities from 4 m/s to 15 m/s. The peak force and Dmax increased exponentially and linearly with the impact energy in all three models, respectively. The most vulnerable parts of the injury were the ischio-pubic rami, iliac-sacral junction and acetabulum area.

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来源期刊

International Journal of Vehicle Safety Engineering-Automotive Engineering

CiteScore

0.30

自引率

0.00%

发文量

期刊介绍： The IJVS aims to provide a refereed and authoritative source of information in the field of vehicle safety design, research, and development. It serves applied scientists, engineers, policy makers and safety advocates with a platform to develop, promote, and coordinate the science, technology and practice of vehicle safety. IJVS also seeks to establish channels of communication between industry and academy, industry and government in the field of vehicle safety. IJVS is published quarterly. It covers the subjects of passive and active safety in road traffic as well as traffic related public health issues, from impact biomechanics to vehicle crashworthiness, and from crash avoidance to intelligent highway systems.