| 1. | Precision test platform of the prototype is designed , by using the high - precision absolute rotary encoder , precision of the prototype is measured , data processing result show that : under the condition that step angle of the input
设计制造了大速比摩擦传动样机的传动精度测试平台,用高精度绝对式编码器对大速比摩擦传动样机的传动精度进行了测试。 |
| 2. | The autoaligment instrument and accuracy turntable with digital display are used to detect the step angle after 32 subdivision , and the experiment results are given , the mean - square error of step angle after 32 subdivision is less than 3 . 7 %
为了检测32细分后的步距角，采用了自准直仪加精密数显转台的光学测量方法，并给出了实验结果， 32细分步距角的均方误差不大于3 . 7 。 |
| 3. | For compensating the nonlinear error between winding current and the result magnetic field of stepper motor , the method of minimum square is adopted to fit and correct the error curve of subdivision step angle , and the subdivision precision is improved
为了补偿步进电机相绕组电流与其产生磁场之间非线性引起的误差，采用了最小二乘法对细分步距角误差曲线进行了拟合与修正，提高了细分精度。 |
| 4. | Stepper motor is a kind of electromechanical component that is driven in step angle or line displacement by electric pulse signal . because of having the advantage of easy open - loop control and no accumulating error , stepper motor is being applied widely in many fields
步进电机是一种将电脉冲信号转换成相应的角位移或线位移的机电元件，具有易于开环控制、无积累误差等优点，在众多领域获得了广泛的应用。 |
| 5. | The flexble step angle two - phase hybrid stepping motor driver is a patented product applied by authors in 1998 . the paper reveals the detailed methods to realize this patented driver , also the feature and the performance indexes of the first generation driver are also presented
任意步距角的二相混合式步进电动机的驱动器是作者1998年申请的一项发明专利，文中介绍实现该专利的具体方法，以及第一代产品所达到的指标和特点。 |
| 6. | Based on the model of a three - phase hybrid stepping motor , the torque expression is deduced . the effect of subdivided driving on operating performance is analysed . it is illustrated that sine wave subdivided driving can make stepping angle and torque equal
本文以三相混合式步进电动机数学模型为基础，推导出其转矩解析式，分析了细分驱动对于改善步进电动机运行性能的作用，论述了正弦波细分驱动可以实现等步距角、等力矩均匀细分驱动的原理。 |
| 7. | By means of the step control of pmsm , it can offer accurate and reliable position control for the angle travel terminal equipment . step angle is small , torque is large and inertia is small . this system will promote the technical guideline and control accuracy of the flow and pressure control
利用永磁同步电动机的步进控制，为角行程终端设备提供准确可靠的定位控制，步进角小、转矩大、惯量小，将使流量及压力控制达到高的技术指标和控制精度。 |
| 8. | In this dissertation , according to the theory of mechanical dynamics and multi - body dynamics , a simulation model of nj2046 light off - road vehicle including suspension system , steering system and tires is built with the software carsim and so the vehicle steering characteristics are analyzed with the step angle input of steering wheel . it is found that the steering characteristics are different when the velocity and load are different , and the relationship between steering characteristics and velocity and load is presented
本文根据机械系统动力学、多体动力学理论，运用动力学仿真软件carsim建立了包括悬架系统、转向系统和轮胎等模型的nj2046越野汽车整车仿真模型，在此基础上分析了nj2046越野汽车在方向盘转角阶跃输入时的转向特性，通过对不同车速、不同载荷条件下的仿真计算，得出了在这些条件下该车具有的不同表现特征，揭示了转向特性与车速、载荷和轮胎的内在关系。 |
| 9. | This paper proposes a new method to obtain any wanted stepping angle with adjustable and even subdivision . with the method , the stepping angle is n ' t restricted with different phase number and tooth number any longer . so the product arrangement of stepping motors and drives can be simplified
提出了通过任意均匀细分来实现任意步距角的新方法，从而打破步进电动机相数和齿数对步距角的限制，简化步进电动机及驱动器的生产格局，充分发挥机电一体化的系统效果。 |
