实时无隙钢球精密传动原理及热力耦合动力学性能研究

项目名称： 实时无隙钢球精密传动原理及热力耦合动力学性能研究

项目编号： No.51275440

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 机械、仪表工业

项目作者： 安子军

作者单位： 燕山大学

项目金额： 78万元

中文摘要： 为实现实时高精密传动和高动态性能的目标，本项目以钢球精密传动为研究对象，（1）应用机构创新设计方法，提出能实时消除啮合副磨损间隙和热膨胀过盈的弱刚性无隙钢球啮合副的传动结构原理，以啮合副周向刚性转动、轴向实时微移动实现实时无隙啮合的精密传动。（2）应用多刚体非线性动力学理论，建立热力耦合的并联弱刚性无隙钢球减速啮合副非线性振动、等速啮合副线性振动和机构复合非线性振动的动力学模型。（3）利用数值模拟和解耦方法，研究机构动态性能及其影响因素关系和参数控制方法。（4）应用热弹塑性理论和摩擦学理论，建立钢球啮合副摩擦分析场、温度场和热力耦合场模型，研究磨损间隙、热膨胀变形及两者耦合关系的解析式。（5）应用误差理论，研究啮合副误差对定传动比实时稳定性和机构动态性能的影响参数和控制方法。本项目研究对提升我国高精密传动的科学研究和应用技术水平、引领高精密传动前沿学科的发展有重要的科学意义和学术价值。

中文关键词： 实时无隙啮合；钢球精密传动；热力耦合；动力学性能；弱刚性组合行星盘

英文摘要： In order to realize the objective of constantly high precision transmission and high dynamics performance, take steel ball precise transmission mechanism as the research object. (1) Applied mechanism creative design method, the transmission structural principle of the poor stiffness no backlash steel ball engagement pair is put up. The wear clearance and the thermal expansion interference of the engagement pair can constantly be eliminated by the transmission structural principle. The precision transmission of constantly no backlash engagement is realized by the circumferential rigid rotation and the axial direction constantly micromotion of the engagement pair. (2) Applied multi-rigid-body nonlinear dynamics theory, the dynamics models of the thermo-dynamic coupleare are established. The dynamics models include the ones of the nonlinear vibration and the linear vibration of the parallel poor stiffness no backlash steel ball deceleration engagement pair and constant velocity engagement pair as well as the compound nonlinear vibration of the mechanism. (3) The dynamics performance and the influence factors of the mechanism and its parameter control method are studied with numerical simulation and decoupling method. (4) Based on thermal elastic and plastic theory and friction theory, the models of the friction ana

英文关键词： real time non backlash meshing；steel ball precision transmission；thermal mechanical coupling；dynamic performance；weak rigid combined disc