跳远中角动量的计算-天津体育学院学报.PDF

J o urnal of T ianj in I nst itut e of Phy s ical E d ucation 16 4 2001 12 Vol. 16No.4Dec, Short Communications 1 2 陈志伟, 侯　曼 ( 1. , 361005; 2. , 100875) : 文章使用刚体动力学方程对走步式、挺身式及蹲踞式三种跳远姿势的腾空阶 进行计算机模 拟, 得知不同的跳远空中姿势所需的初始角动量是不同的。同时, 文章还将介绍一种测量初始角动量的 方法, 以便用它进一步研究跳远并希望能将它应用于训练之中。 : 运动生物力学; 角动量;计算机模拟; 跳远 : 804.4 : : 1005-0000(2001) 04-0058-03 G A CALCULATION OF THE ANGULAR MOMENTUM IN LONG JUMP 1 2 C EN Zhiwei , OU Man ( 1.Dept. of Physical Education,Xiamen University,Xiamen,361005,China; 2.Dept. of Physical Education Beijing Normal University Beijing, , , 100875,China) Abst ract : The purpose of this article is to study the computer simulation of the flight phase for the itch- kick, ang and Sail styles of long jump by applying the equations of rigid body dynamics .It is shown that each flight phase requires different amount of initial angular momentum We also introduce. a method to quantitatively measure the initial angular momentum,that can be applied to the study and training of long jump. Key Words: angular momentum computer simulation long jump; ; , 9 , ,, 1 [ 1,2] , 9 , , B , , , : 9 H 0= (r imivi + I i i) ( 1) i= 1 , , ( 1)