摘要
给出求球、柱坐标系中急动度的一种方法.首先分别求出了2个坐标系各个单位矢量的导数与各单位矢量之间的关系,然后把2个坐标系的加速度对时间求导数,利用单位矢量导数与其的关系,导出这2种坐标系中的急动度的分量式.
A method for the jerks in the spherical coordinate and the cylindrical coordinate was given.Firstly the relationships between identity vector and its derivative were found,and then the derivative of accelerations in the two coordinates were educed,the jerks in this two coordinates were deduced by using these relationships.
出处
《高师理科学刊》
2009年第6期45-47,共3页
Journal of Science of Teachers＇College and University
关键词
急动度
球坐标系
柱坐标系
单位矢量
加速度
jerk
spherical coordinate
cylindrical coordinate
identity vector
acceleration
