在此基础上，引入结构动特性的主要指标之一的结构固有频率，提出了一种新的结构优化形式。
Then a new type of structural optimization is proposed by employing one of the main indexes of structural dynamic characters i. e. natural frequency.
在灵敏度分析的基础上，以系统固有频率灵敏度最低为目标对张紧机构进行优化。
On the base of sensibility analysis, an optimization for tensioner is performed with the lowest sensibility of system natural frequency as the objective.
当发电机的外接负载不对称时，转子的固有频率一分为二，转子的振动在原来单频振动的基础上，产生了双重共振现象。
Its natural frequency falls into two parts when the loads exerted on generator rotor are asymmetrical. Dual resonance phenomenon appears based on the former single frequency vibration.
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