The angles will never be very large, as you will see later when we calculate theta maximum, and so we know that we're going to get a simple harmonic oscillation to a very good approximation.
2
通过数值算例验证了体外预应力对简支梁桥振动频率和振动模态的影响。
And numerical example is adopted to explain the influence of external prestress to the vibration frequency and modality for simple beam.
3
作为算例计算了四边简支菱形板的自振频率和临界载荷。
The critical load and natural frequency of rhombus plates with simply supported at all edges are calculated.