针对多碰撞工况要求，提出了结构安全性协同设计技术，实现了设计参数综合优化，并成功应用于多种车型碰撞安全性设计。拓展应用到登月返回器多工况着陆冲击防护设计和水下非接触爆炸舰艇乘员三向抗冲击装备设计。早期成果于1997 年获得国家科学技术进步二等奖，近期成果于2011年联合获得军队科技进步一等奖。

To meet the requirements of multiple crash scenarios, a cooperative design technology of structural safety was proposed, and the comprehensive optimization of design parameters was realized. The theories were successfully applied to automobile industries, and furthermore applied to the protection design for landing impact of reentry capsule and anti-shock equipment design for warship crew in underwater explosion. Associated achievements won 2nd Prize of National Science and Technology Progress Award in 1997 and 1st Prize of Army Science and Technology Progress Award in 2011.

在国家自然科学基金资助下，开展了多工况下乘员和行人碰撞损伤机理与评价方法研究。建立了适应中国交通事故特征和国内乘员身材的自适应约束系统构型谱，在国际上首次研制成功4 自由度膝关节行人下肢模块。针对斜向碰撞和人- 车碰撞等复杂工况下人体损伤无法准确评估的难题，建立了损伤评价理论和快速评估工具。提出了参数化儿童头部有限元建模方法，实现了不同年龄阶段儿童头部有限元模型的快速自动建模。

Supported by NSFC, impact injuries of occupants and pedestrian under various conditions were studied as well as relevant  essment methods. An adaptive restraint system configuration spectrum was established that considers China traffic accident characteristics and domestic occupants’ stature. A pedestrian legform with 4-DOF knee joint with improved bio-fidelity was developed. To achieve better assessment of human injuries under oblique impact and other complicated conditions, injury assessment theory and rapid assessment tool were developed. Parametric child head FE modeling method was proposed.

在国家自然科学基金或国际合作等项目支持下，深入研究了多种金属、非金属以及复合材料的动态变形响应和断裂行为，建立了完备的材料力学特性表征数据库、提高了轻量化车身碰撞模拟精度。开展了新型纳米多孔材料碰撞能量吸收技术研究，建立了多尺度研究平台，显著提升了能量耗散密度。开展了胶接接头性能及环境老化机理研究，开发了高效率仿真模型，借助分子动力学实现了结构胶湿热老化效应的定量分析。

Supported by NSFC or international cooperation, many metallic, nonmetallic and composite materials are investigatedin terms of their impact responses and fracture behaviors, forming a complete database of material mechanical performance and improving accuracy of lightweight vehicle crash simulations. The technology of energy absorption using porous nano-materials is studied with a multi-scale research platform, showing the potential of such a mechanism to significantly raise energy dissipation density. Adhesive-bonded joints are also investigated in terms of their mechanical performance and the mechanism of the hygrothermal degradation as well.

 提出了车身结构多学科（刚度、疲劳、强度、侧翻、轻量化以及NVH）并行设计优化方法，开发了多学科多目标协同优化设计（MDO）平台 ，技术在福田及陕汽进行了推广应用。

The methodology of multi-disciplinary paralle optimization and design for auto-body structure is proposed, and a platform for multi-disciplinary and multi-objective cooperative optimization an design is developed. Associated techniques have been applied to industries.