旋转矢量法在简谐振动和简谐波问题求解中的应用

An Application of Rotation Vector to Problem Solving in Simple Harmonic Motion and simple Harmonic Wave

求解简谐振动和简谐波问题,一直是大学物理课程中学生学习的难点,其关键是初相位难以确定。若学生掌握了用旋转矢量求解相关问题的方法,则能直观、方便地研究简谐振动,达到化难为易、突破难点的目的。通过实例说明了旋转矢量法在简谐振动和平面简谐波中的运用。

Solving the problem of simple harmonic vibration and simple harmonic wave have been students＇ learning difficulties in college physics course, because it is difficult to determine the initial phase. If students have mastered the use of the rotation vector method to solve related problems, harmonic vibration can be intuitively and easily researched, which can overcome the difficulties. This paper illustrates the application of simple harmonic motion and plane simple harmonic wave to rotation vector.