存在偏心时机电集成超环面传动动力学研究

发布时间：2018-05-31 08:31

本文选题：机电集成 + 超环面传动　；参考：《燕山大学》2012年硕士论文

【摘要】：机电集成超环面传动系统是一种新型复合传动系统，具有结构紧凑、响应速度快、无润滑、转速与输出力矩可控等优点。本文研究了系统误差对传动系统输出力矩和自由振动的影响，并对由系统误差引起的传动系统受迫振动和弱非线性振动进行了深入研究。本文主要包括以下内容：研究了机电集成超环面传动系统在环面定子处与环面蜗杆处的磁场分布情况，分析了不同参数对系统磁场的影响，给出了行星轮受到的磁场力和系统输出力矩计算公式，分析了不同参数对系统输出力矩的影响，进而分析了系统误差对传动系统的受力以及输出力矩的影响。建立了定子旋转式与定子固定式机电集成超环面传动系统的动力学方程，分析了偏心对电磁耦合刚度的影响，，研究了在系统误差影响下的系统固有频率以及振动模态，进而分析了系统误差对传动系统固有频率以及振动模态的影响规律，同时分析了不同模态下系统固有频率对不同系统参数的灵敏度随系统误差的变化规律。建立了定子旋转式与定子固定式机电集成超环面传动系统在系统误差激励下的受迫振动微分方程，分析了系统在不同激励频率下的时域响应。建立了系统由于偏心引起的弱非线性自由振动微分方程，使用L-P法求出了近似解析解，并分析了不同系统参数对系统弱非线性振动的影响规律。使用Pro/Engineer软件完成了定子固定式机电集成超环面传动系统样机的三维建模，同时利用ANSYS软件对环面蜗杆、行星轮、环面定子的磁场进行了仿真模拟，并模拟计算了行星轮在环面定子处受到的磁场力，与理论计算值进行了比较，验证了理论计算的正确性。
[Abstract]:The electromechanical integrated toroidal transmission system is a new type of compound transmission system, which has the advantages of compact structure, fast response speed, no lubrication, controllable rotational speed and output torque, etc. In this paper, the effect of system error on the output moment and free vibration of transmission system is studied, and the forced vibration and weakly nonlinear vibration of transmission system caused by system error are deeply studied. This paper mainly includes the following contents: The magnetic field distribution of the electromechanical integrated toroidal transmission system at the toroidal stator and the toroidal worm gear is studied. The influence of different parameters on the magnetic field of the system is analyzed. The formulas for calculating the magnetic field force and the system output moment of the planetary gear are given. The influence of different parameters on the output torque of the system is analyzed, and then the influence of the system error on the force and the output moment of the transmission system is analyzed. The dynamic equations of stator rotary and stator fixed electromechanical integrated ultra-toroidal transmission system are established. The influence of eccentricity on electromagnetic coupling stiffness is analyzed. The natural frequency and vibration mode of the system under the influence of system error are studied. Furthermore, the influence of system error on the natural frequency and vibration mode of transmission system is analyzed, and the sensitivity of system natural frequency to different system parameters under different modes is analyzed. The forced vibration differential equation of stator rotary and stator fixed electromechanical integrated toroidal drive system under system error excitation is established. The time-domain response of the system under different excitation frequencies is analyzed. The differential equation of weak nonlinear free vibration caused by eccentricity of the system is established. The approximate analytical solution is obtained by using the L-P method, and the influence of different system parameters on the weak nonlinear vibration of the system is analyzed. The 3D modeling of the prototype of the stator fixed electromechanical integrated super-toroidal drive system is completed by using Pro/Engineer software. The magnetic field of the toroidal worm, planetary gear and toroidal stator is simulated by using ANSYS software. The magnetic field force of the planetary wheel at the stator of the torus is simulated and compared with the theoretical calculation, which verifies the correctness of the theoretical calculation.
【学位授予单位】：燕山大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH-39;TH113

【相似文献】