Before cycle 24 commenced, the position and strength of the torsional oscillation correctly predicted the late arrival of this cycle's sunspot activity.
The strength, rigidity, stability and torsional rigidity of the bodywork structure were calculated by using finite element analysis. Thus the optimum fillet of the bodywork structure can be specified.
采用有限单元法对车体结构的强度、刚度、稳定性、挠跨比、扭转刚度进行计算，为车体设计提供了参考依据。
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Moreover, the paper presents a relatively simple and comprehensive theoretical method for torsionalstrength calculation.