随机连续杆纵向振动系统的频率可靠性分析

NATURAL FREQUENCY RELIABILITY ANALYSIS FOR RANDOM AXIAL VIBRATION OF ROD SYSTEMS

  • 摘要: 根据随机连续杆纵向振动系统的固有频率与激振频率差的绝对值不超过规定值的关系准则,定义了随机连续杆纵向振动系统的可靠性模式和系统的可靠度,提出了避免共振的频率可靠性分析方法,对随机连续系统共振问题的准失效分析方法进行了探索.

     

    Abstract: Parameter uncertainty of structural systems is inherentin most engineering problems. It is necessary to study thereliability of uncertain systems. Frequency analysisis important for reliability study of dynamically uncertainstructures. In this paper, the criterion is used that the differencebetween the natural frequency anddriving frequency should be less than a specific value. The reliability mode and the safetyprobability of the random axial vibration systems of rods are definedas a series mode, and the frequency reliability analysis method foravoiding the resonanse is proposed. The quasi-failure analysis methodfor resonant problem of the random axial vibration systems of rods isstudied.

     

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