关键词: 中国人体, 假人, 汽车碰撞, 仿真, 缩放

Abstract:

By using computer simulation method, the feasibility of developing a frontal crash dummy was studied, which was in accordance with the characteristics of Chinese human body through a few changes to the current Hybrid Ⅲ dummy. Based on the scaling method, the finite element(FE) model of dummy was developed which can fit the characteristics of 50th percentile Chinese human body. Since the limbs were the most different body parts between Chinese and American and the torso of dummy was difficult to process after scaling, thus only the sizes of limbs were scaled and the size of some parts of torso were adjusted to develop another FE dummy model. The third FE dummy model was developed by changing the parameters of materials of the standard dummy model. Frontal crash simulations were conducted by using these three dummy models. The results show that changing the parameters of material has little effect on dummy collision response but changing the dimensions of dummy has a great effect on it. It is also indicated that the dynamic responses of the partial scaled dummy are basically consistent with that of the full scaled dummy. Therefore, the partial scaling method can be used to develop the Chinese occupant dummy.

Key words: Chinese human body, dummy, vehicle crash, simulation, scaling