Comparison the Torque of Upper Incisors Using two Closing Loops in the Treatment of ClassⅡ Division 1 Malocclusion;
两种关闭曲对安氏Ⅱ类1分类拔牙病例上切牙转矩影响的比较研究
Clinical Comparison of Torque Square Wire and Intermaxillary Elastics for Deep Molar Overjet;
转矩方弓和交互牵引矫治磨牙深覆盖的临床研究
Stability analysis for direct torque control of induction motors;
感应电动机直接转矩控制的稳定性分析
Influence of Loops on the Torsion Stiffness of Rectangular Wire;
垂直曲、水平曲对弓丝转矩性能影响的比较研究
Study on Properties of Orthdontic Rectangular Arch Wires in Torsion;
正畸方丝转矩特性的研究
WS-1 Intelligent Measuring Instrument of Moment and Rotational Speed;
WS-1型智能转矩转速测量仪
The ability to carry moment of Rzeppa constant velocity joint represents product design level.
球笼式万向节的承载转矩能力是衡量其产品设计水平的重要指标 ,本文在万向节通用转矩方程下 ,以Hertz接触应力理论为基础 ,从理论上推导出了球笼式万向节承载转矩的计算公式 ,并在给定的许用载荷下求出了球笼式万向节系列的静态转矩、瞬时作用转矩以及额定工作转矩。
In view of special applications of multi-pole magnetic permanent torque motor used for precise numerical control rotary table, motors with higher torque density and lower torque ripples are needed.
针对精密数控转台伺服直接驱动用多极永磁力矩电机的特殊应用问题(要求电机有较大的转矩密度且较小的转矩波动),在分析该种电机的特殊结构的基础上,提出一种新型不等齿顶宽结构,以提高绕组利用系数,加大电机的转矩密度;并采用转子斜极的方法,可在有效消除转矩波动的同时,电机仍保持较高的绕组利用系数。
This paper presents MMF of a five-phase induction motor with concentrated and full-pitch windings by means of fourier analysis and winding function , which indicates theoretically that the five-phase induction motor with concentrated and full-pitch windings can provide more electromagnetic torque and higher torque density than others.
本文运用傅里叶分析和绕组函数的方法,推导了集中整距绕组五相感应电动机的磁动势,得出集中整距绕组五相感应电机能更好地增加电机的电磁转矩、提高转矩密度。
Starting from the definition of motor power and torque density, the paper calculates the motor power and torque density of Y2 range of three-phase induction motors of IP 54 in detail, analyzes and comprises the calculation results, and give the changing conditions of motor power and torque density of the motor with different no.
从电动机功率密度及转矩密度的定义出发,以Y2系列(IP54)三相异步电动机的技术数据为依据,对Y2系列部分型号规格的异步电动机的功率密度及转矩密度进行了详细的计算,对计算结果进行了分析和比较,并通过图表形式给出了不同极数、不同功率等级电动机的功率密度及转矩密度的变化情况。