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后碰撞又称追尾碰撞,是汽车碰撞事故的一种类型。80年代初进行的滑车模拟后碰撞试验表明,在后碰撞时,当倚背向后转角超过60C时,座椅上的假人如不系用安全带,将会沿椅背上滑并出现臀部、腰部向上离开椅背现象。 模拟后碰撞试验是在HYGE滑车上进行的,试验用座椅刚性固定在滑车平台上,椅背上安放PART572假人,每次试验部用新的座椅。在假人的头部和胸部装有加速度传感器。使用两台高速摄影机记录假人和座椅的运动情况、一台安装在滑车上,一台固定在地面上。 分析研究各种条件下后碰撞试验结果可以得出
After the collision, also known as rear-end collision, is a type of car crash. After the tackle simulation of the crash test conducted in the early 1980s, it was shown that when the recliner back corner exceeds 60C in the after-collision, the dummy on the seat will slip along the back of the chair and the hips will appear if not wearing a seat belt , Waist back upward from the seat back phenomenon. After the simulation of the crash test is carried out on the HYGE pulley, the test seat is rigidly fixed on the platform of the trolley, the PART572 dummy is placed on the back of the chair, and the new seat is used for each test. Acceleration sensors are mounted on the dummy’s head and chest. Two high-speed cameras were used to record the movement of the dummy and the seat, one mounted on the trolley and one fixed on the ground. Analysis of various conditions after the crash test results can be drawn