This paper deals with the nonlinear oscillations of conservative single-degree-of-freedom systems with odd nonlinearity. 摘要研究具有奇非线性单自由度保守系统的非线性振动。
Substitution into the Lagrange's equations for a potential system gives after appropriate simplification the differential equations of motion of the system. 代入保守系统拉氏方程，并适当化简，得到系统的运动微分方程。
