This paper presents a system to improve the protection to the occupants of aWorld Rally Championship Car in case of a side impact involving a tree collisionusing energy-absorbing structures. An outline of the immediate events after thecar crash into a tree is provided followed by an analysis of a typical standardrollcage, then the design criteria and features of a carefully selected designconcept. The design model is produced using solid modelling/I-DEAS 11 softwaresand PAM-Crash is used for the simulations. The simulation results show that SideImpact Protection System (SIPS) is capable of absorbing and dissipating 98% ofthe energy of a 14 m/s impact involving a 0.2 m diameter tree
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机译：本文提出了一种系统，用于在涉及树木碰撞的侧面碰撞情况下使用能量吸收结构来改善对世界拉力锦标赛冠军车乘员的保护。概述了汽车撞车事故后立即发生的事件，然后分析了典型的标准履带，然后分析了设计标准和经过精心选择的设计概念的特征。使用实体建模/ I-DEAS 11软件生成设计模型，并使用PAM-Crash进行仿真。仿真结果表明，SideImpact保护系统（SIPS）能够吸收和消散涉及0.2 m直径树的14 m / s撞击的98％能量。
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