The time history curves and the phase diagram for the oscillation are obtained by solving the differential relation between vibration amplitude and tensile load with finite difference method.
应用有限差分法求解球壳振动的振幅和外加荷载之间的微分关系，得到了球壳振动的时程和相图。
2
In the new diagram, 3 curves are heating up cooling down, compressive tensile and tensile elastic deformation tensile plastic deformation respectively.