精品文档---下载后可任意编辑Q6 儿童假人头颈部有限元模型的开发及验证开题报告摘要儿童假人是目前用于车辆碰撞安全评估的主要测试工具之一。目前我国使用的儿童假人主要参考了欧洲标准，但因人体结构、生理特点等方面的差异，其在预测车辆碰撞中的安全性能方面存在局限性。因此，开发适合中国儿童的假人模型显得尤为重要。本文提出了一种基于有限元方法的儿童假人头颈部模型开发及验证方法，旨在提高儿童碰撞安全评估的准确性和可靠性。首先，介绍了目前儿童假人的讨论现状和进展趋势，并分析了其存在的问题。其次，详细描述了儿童假人头颈部有限元模型的开发方法，包括 CAD 建模、网格划分、材料属性和边界条件的设定等。然后，利用实验数据对模型进行了验证，分析了模型的准确性和可靠性。最后，讨论了该模型的不足之处，并提出了改进措施。通过本文的讨论，有效的改善了现有儿童假人在预测车辆碰撞安全性能方面的不足，为提高儿童碰撞安全评估的准确性和可靠性提供了一种新的工具。关键词：儿童假人；有限元模型；头颈部；安全性能；验证AbstractChild dummies are one of the main testing tools used for vehicle crash safety assessment. The child dummy currently used in China mainly refers to European standards, but due to differences in body structure, physiological characteristics and other aspects, it has limitations in predicting vehicle crash safety performance. Therefore, it is particularly important to develop a dummy model suitable for Chinese children. This paper proposes a development and verification method for a finite element model of the head and neck of a child dummy, aiming to improve the accuracy and reliability of child crash safety assessment.Firstly, the current research status and development trends of child dummies are introduced, and the problems they face are analyzed. Secondly, the development method of the finite element model of the head and neck of the child dummy is described in detail, including CAD modeling, meshing, 精品文档---下载后可任意编辑material properties and boundary conditions. Then, the model was verified using experimental data, and the accuracy and reliability of the model were analyzed. Finally, the shortcomings of the model were discussed and improvement measures were proposed.Through this research, the shortcomings of the existing child dummy in predicting vehicle crash safety performance have been effectively improved, and a new tool has been provided to improve the accuracy and reliability of child crash safety assessment.Keywords: child dummy; finite element model; head and neck; safety performance; verification
