摘要
设计出一种振动节振动频率与振荡元件激励频率相同,使之能够共振的Φ73水力振荡器,对该水力振荡器系统进行了振动建模,并计算了振动系统的固有频率。一方面采用常规的方法经过多次试凑设计出一种符合要求的碟簧,另一方面在给定设计条件的约束下,以组合碟簧最大压缩量为目标函数,应用Matlab求解出水力振荡器用非标碟簧参数的最优值。通过与常规计算的结果进行对比,发现优化设计的方法更加有效和方便,最终根据优化设计的结果设计出振动节的结构。优化后的水力振荡器振幅增大,钻井过程中振动传播的距离更远,带动管柱由静摩擦钻进变为动摩擦钻进的部分更多,产生托压的概率减小。
A Ф73 hydro - oscillator that the vibration frequency of the vibratoryjoint is the same as that of the oscillating element is designed. The vibration model of the oscillator system is established and the natural frequency of the oscillating system is calculated. On the one hand, the conventional method is used to design a disc spring which meets the requirements after several trials. On the other hand,under the constraints of given design conditions,the maxinmnl compression of the combined disc spring is taken as the objective function, and the optimal value of the parameters of the non -standard disc spring for the hydraulic oscillator is solved by using Matlab. By comparing with the results of conventional calculation, it is found that the optimal design method is more effective and convenient. Finally, the structure of vibration joint is designed according to the results of optimal design. The amplitude of the optimized hydro - oscillator increases, the vibration propagation distance in the drilling process is longer,and the probabilily of generating supporting pressure decreases.
作者
许福东
董立
谭超
XU Fudong;DONG Li;TAN Chao
出处
《现代机械》
2018年第5期16-20,共5页
Modern Machinery
关键词
水力振荡器
共振
碟形弹簧
优化设计
hydro - oscillator
resonance
disc spring
optimal design
