弹簧耦合摆小振动的简正模与简正频率

NORMAL MODES AND MODE FREQUENCIES OF SMALL VIBRATIONS OF SPRING-COUPLED PENDULUMS

将耦合摆弹簧作为弹性均匀杆，导出了对称简正模与反对称简正模的本征方程，给出各角频率值的近似式，并进行了讨论．

Taking the spring of coupled pendulums as an uniform elastic rod, characteristic equations are derived for symmetric normal mode and antisymmetric modes. Approximate formula for mode frequencies is given. Small vibrations of the system is discussed.