Analysis and Optimization of Mud Pump Crankshaft Structure based on Nonlinear Regression Model

Abstract

The mud pump is an important power component of petroleum drilling. The crankshaft, as an important part of the mud pump, requires optimization of the crankshaft structure in order to improve the efficiency of the mud pump. First analyze the workload of the crankshaft, and obtain the stress point and load size of the crankshaft work. Through the finite element simulation, the corner of the crank rotation and the maximum deformation of the crankshaft and the maximum stress is obtained. Combining the production process to open the hole, use the non -linear regression model to establish the relationship between the crankshaft structure optimization target and the opening diameter of the opening, and use multiple target optimization methods to find the optimal variable. The maximum stress, maximum variable volume, and the total mass optimization effect of the crankshaft is obvious, reducing product costs.