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苏教版数学(必修)第4册P36是这样规定简谐运动的振幅、周期、相位和初相的:设物体做简谐运动时,位移s和时间t的关系为s=Asin(ωt+φ)(A>0,ω>0).其中A是物体移动时离开平衡位置的最大距离,称为振动的振幅;往复振动一次所需的时间T2π=称为这个振动的周期;ωt+φ称为相位,t=0时的相位φω称为初相.对于教材的规定,简谐运动的振幅、周期,师生都不难理解.但是对于相位和初相,一般数学教师只能照本宣科,然后把
Supraatics mathematics (compulsory) Volume 4 P36 is such a simple harmonic motion amplitude, period, phase and primary phase: the object to do simple harmonic motion, the displacement s and time t for the relationship s = Asin (ωt + φ) (A> 0, ω> 0), where A is the maximum distance from the equilibrium position when the object moves and is called the amplitude of the vibration; the time required for the reciprocating vibration once is T2π = the period of this vibration; ωt + φ Known as the phase, t = 0 when the phase φω is called the initial phase.For the teaching of the provisions of simple harmonic motion amplitude, periodic, teachers and students are not difficult to understand.But for the phase and the first phase, the general mathematics teachers can only according to the scripted, Then put it