periodic motion in which the restoring force is proportional to the displacement
In mechanics and physics, simple harmonic motion is a type of periodic motion where the restoring force is directly proportional to the displacement. It can serve as a mathematical model of a variety of motions, such as the oscillation of a spring.
例句与用法
1.
The system executes simple harmonic motion . 此系统产生简谐运动。
2.
One instance of simple harmonic motion is that of the projection on any diametre of a point which describes a circular path with uniform angular velocity . 当一质点以匀角速度作圆周运动时，则它在任意直径上的投影的运动便是简谐运动的一例。
3.
Cosine acceleration or simple harmonic motion 余弦加速度运动
4.
Theoretical study on dynamic filtration with the membrane in simple harmonic motion 简谐运动膜分离的理论研究
5.
Assuming the blades conduct a planar simple harmonic motion , the flows in vibrating cascades in the case of different oscillating amplitudes , different reduced frequencies and different torsional centers are computed respectively for two blade profiles . according to comparing flow calculations at different oscillation modes , the influence of the oscillation parameters " selection on aeroelastic performances of cascades is analyzed 假定叶片做平面简谐运动，针对两种叶型分别计算了不同振动幅度、折合频率及扭心位置时的振动叶栅流场，根据各种振型下流场计算结果的比较，分析了振动参数选取对叶栅气动弹性性能的影响。
6.
The wing is modeled structurally by vibrational modes , which are used as amplitude of motion by a finite element analysis . conservative full - potential equation and three dimensional unsteady euler equation are used to compute the unsteady transonic flows around airfoil and wings under simple harmonic motion 以给定机翼模态分布下机翼上各点的模态值作为运动幅值，以三维非定常全位势方程和三维非定常euler方程为控制方程，求解三维机翼简谐运动下的非定常气动力。
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