摘要
以传统的振动设计方法为基础,提出了机械零件振动的可靠性设计方法。把机械零件的固有频率、激振力频率、振动响应按照实际处理为随机变量,使用概率设计法确定机械零件振动设计的可靠度。文中介绍了机械零件振动设计量分布参数的确定方法和避开(或落入)共振、限制振动响应、避开流体诱发振动的可靠性计算模型。给出了旋转机械的转子、叶片、轴承、壳体、热交换器的管束和振动机械的可靠性设计分析方法和一些应用实例。
This paper presents a reliability design approach of machinery parts subject to vibration, based on conventional vibration design method for machinery parts. In the approach excitation frequencies, natural frequencies and vibration responses of machinery parts are considered as random variables according to actual conditions. The reliability for the vibration design of parts is estimated by means of probabilistic design methods. The methods for determining the distribution parameters of design magnitudes are given together with reliability calculation models for distancing from resonance or being in resonance, limiting vibration response as well as distancing from vibration induced by fluid. Reliability design methods of rotors, blades, bearing and outside cages of rotary machinery and vibration machinery, as well as tubes of heat changer are elucidated with some practical examples.
出处
《振动工程学报》
EI
CSCD
1999年第4期553-558,共6页
Journal of Vibration Engineering
关键词
可靠性
设计
机械零件
振动
旋转机械
reliability design
machinery parts
vibration
rotary machinery
vibration machinery
