In this paper, advanced finite element (FE) methods are developed to investigate the effect of deceleration on the crash dummy test complied with British Standard Engineering (BS EN 1789). These techniques, which are related to material modelling, joints and contacts, offer an advanced numerical model representing an infant incubator with all complex boundary conditions and design contents. It is shown that the response of an infant incubator is a function of the ratchet straps, the tension on the belts, the belt type and the distance of the belts from the edges of the incubator, which can significantly affect the experienced acceleration, by the infant. The validation process is performed against experimental studies and various case parameters such as crash dummy mass and negative acceleration impulse are discussed in detail. The developed numerical model is capable to predict the behaviour of the crash dummy and the incubator in terms of acceleration, trajectory and kinematics by less than 8% error.

中文翻译：

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用于预测减速下保育箱内婴儿/新生儿碰撞假人行为的数值模型开发

在本文中，开发了先进的有限元 (FE) 方法来研究减速对符合英国标准工程 (BS EN 1789) 的碰撞假人测试的影响。这些与材料建模、关节和接触相关的技术提供了一个先进的数值模型，代表具有所有复杂边界条件和设计内容的婴儿保育箱。结果表明，婴儿保育箱的响应是棘轮带、皮带上的张力、皮带类型以及皮带与保育箱边缘的距离的函数，这会显着影响经验加速度，通过婴儿。验证过程是根据实验研究进行的，并详细讨论了各种案例参数，例如碰撞假人质量和负加速脉冲。