A calculation for period of a single freedom nonlinear conservative system vibrating in a large amplitude is performed, and the period formulae of some typical vibration problems are presented.
简要介绍了单自由度非线性保守系统作大振幅振动时周期的计算方法，并给出了几个常见典型振动问题的周期公式。
The paper discusses nonlinear mapping in real number phase space and energy method of sub-rule spot map in conservative system.
探讨了实数相空间的非线性映射和保守系统准规则斑图的能量画法。
The paper discusses nonlinear mapping in real number phase space and energy method of sub-rule spot map in conservative system.
探讨了实数相空间的非线性映射和保守系统准规则斑图的能量画法。
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