一、前言玻璃钢撑竿在撑竿运动员运动过程中起着能量转换作用。运动员的速度(包括水平速度和摆体的角速度)产生的动能除了在插穴瞬间少量损失外,一部分转变为由于竿的摆动使人体抬高的势能,另一部分转变为撑竿的弹性变形能。竿压弯到最大位置后开始回弹,把这部分弹性变形能释放出来,变成人的势能使人越过横竿。因此要求撑竿既有很好的挠曲性(此时产生大挠度变形),又有良好的弹性;既轻,又牢,使运动员能持竿快速冲刺,又具有足够的强度和疲劳寿命。为此,我 First, the foreword FRP pole in the pole athlete movement plays a role in energy conversion. The kinetic energy of the athlete’s speed (including the horizontal speed and the angular velocity of the pendulum) is partly transferred to the potential energy of lifting the body due to the swinging of the pole, and the other part is transformed into the elastic deformation energy of the pole except for a small amount of loss at the moment of insertion. After the rod is bent to the maximum position, it begins to rebound, releasing this part of the elastic deformation and turning it into a person’s potential energy to make people cross the crossbar. Therefore, the requirements of the pole has both good flexibility (at this time have a large deflection deformation), but also good flexibility; both light and fast, so that athletes can quickly sprint pole, but also has sufficient strength and fatigue life. For this, me