1 The restoring force a vibrating flexible membrane arises from the tension with which it is stretched.

2 Restoring force model plays a very important role in the research of earthquake - resistant structure.

3 To state the restoring force of a simple pendulum during oscillation is the resultant force of the gravity of the ball and the pulling force of the thread is wrong .

4 The deformation property, the character of hysteresis curve and the restoring force are studied.

5 DOC-8 not only can break down polymer plugging but also for the cross-linked polymer plugging have strong restoring force.

6 The mathematic model was a nonlinear oscillator driven by wave exciting force while the restoring force was exponential.

7 All these could manifest the feasibility of the MMBSC on describing the member restoring force characteristics.

8 On the test results, through analysis, the four line restoring force model is presented.