Analysis And Research On Energy Loss Factor Of Planar Rotary Actuator

Artificial heart-lung machines are currently widely used in heart surgery.So far,most of the artificial heart-lung machines used in domestic hospitals have mainly relied on imports.China has independently developed a planar rotary drive for artificial heartlung machines.An important research topic.The plane slewing drive is a power device used to drive the blood pump in the artificial heart-lung machine.Its main role is to convert energy from electrical energy to magnetic field energy,and finally into rotary mechanical energy through the interaction of the stator and rotor magnetic fields to drive the blood pump.The rotor blade rotates and completes the flow transmission of blood outside the body.The content of this topic aims at the analysis of the factors that cause energy loss during the operation of the planar driver and the search for new structural parameters of the planar driver that can reduce the energy loss,so as to reduce the loss in the energy conversion process and improve the efficiency of energy conversion.In the subject research,the structure design of planar drives with different structures was first completed,and the energy conversion efficiency of the planar rotary drive structure at work was analyzed and summarized through experimental testing and simulation,and the structure of the planar rotary drive with the highest energy conversion efficiency was continuously optimized.This article will focus on analyzing the main influencing factors of energy loss(heat generation,eddy current loss,etc.)caused by the plane slewing drive with different structural parameters during operation,and further improving and optimizing the plane drive(main stator)in combination with the analysis content.This topic has completed the following content research and analysis:1.Design of the stator structure of the planar rotary drive.According to the relationship between the air gap magnetic field and the stator structure,the relationship between the stator structure and the magnetic field energy conversion rate is analyzed,and the design calculation of the better parameters such as the tooth length,tooth width,tooth thickness,tooth yoke width and number of teeth of the stator structure is completed.2.Analyze the effect of stators with different structures on the energy loss of the planar rotary drive.In this way,we explore the stator structure of the planar rotary drive with less energy loss,analyze the influence of various parameter changes on reducing energy loss through different stator structures,and find the best stator structure to improve energy utilization as much as possible.3.The stator is processed with different stator materials,and the influence of different materials on the energy loss factor of the planar rotary drive is analyzed.The temperature field and magnetic field research methods are used to analyze and study the influence of different magnetic permeability materials on energy utilization.The common and unused stator structural materials are processed and tested to find the stator material with the highest energy transfer efficiency.4.Use Solid Works,Maxwell and ANSYS software to establish a three-dimensional model of the plane rotary drive structure,perform simulation and theoretical calculation of the temperature field and magnetic field of the plane rotary drive stator,and analyze the energy conversion of different stator structures under different input states According to the method of numerical simulation,the parameters of the structure are optimized,and the experimental test is completed.Find the stator structure of the planar rotary drive with the highest energy utilization under the existing conditions.Provide relevant research foundation for follow-up research.