理论方程 meaning in English
theoretic equation
theoretical equation
Examples
- A theoretic equation of thermal conductivity of gas and two theorem
气体导热率理论方程和两个定理 - Abstract : the influence of the main factors on device efficiency of pulsedliquicd jet pump with gas - liquid piston is analysed , the theoretical equation and its time - averaged solution of pulsed liquid jet pump device efficiency are derived
文摘:对影响气液活塞式脉冲液体射流泵装置效率的主要因素进行分析，导出了脉冲液体射流泵装置效率理论方程及其理论方程的时均解。 - Besides , on the basis of the test data under bending and torsion and the theoretical analysis on the tubular , the relative relationship between the bearing values is derived . second , based on the elastic theory , this paper deduces the rules of stress distribution and main physical and geometric parameters by analyzing the elastic stress distributions when the tubular is under such conditions as torsion , bending , shearing , combined bending and torsion , and combined shearing and torsion ; additionally , taking the strength criteria of concrete and steel as reference , the paper proposes a set of theoretic equations for the relative relationship between the bearing values
本文利用弹性理论对扭转、弯曲、剪切、弯扭联合作用、剪扭联合系列作用下的构件弹性应力分布进行了研究，得出应力分布与主要物理和几何参数的规律；同时引入混凝土及钢的强度准则，得出了弯扭、剪扭复合应力作用下的承载力相关关系的理论方程，可供工程设计使用。 - First , we make the basic need of magnetic circuit clearly , present the theory formulation for permanent magnetic circuit of radial polarization using the method of analyzing the theory of magnetic circuit of axis polarization , and program the calculational programme to simulate the magnetic field of magnetic circuit applying finite difference method . then we continue to study using the adult soft of femm of calculation magnetic circuit magnetic field , consider many factors affecting it , get a great lot of data and curves , give some better magnetic circuit structures for reference at our laboratory . in the end , with the condition of our lab , we measure the permanent magnetic circuit completed , then the experimental and calculational simulation results have been discussed and analyzed
本文首先阐述了磁路计算及设计的基本要求，利用分析轴向永磁体磁路理论的方法，推导出了求解径向磁化磁路的理论方程，应用有限差分法，编制了计算程序，对磁路的磁场进行了模拟；然后利用比较成熟的计算磁路磁场软件femm作深入研究，考虑了影响磁路磁场的多种因素，得出了大量数据和曲线，给出了几组比较合理的磁路结构，可供实验的参考；最后，结合本实验室条件，对现有永磁体磁路进行了冷测，将测试结果和计算模拟结果作了比较，并进行了讨论和分析。 - The apsp produced abroad is made by numerical controlled machine tool , which has noise level of 71db ( a ) , the apsp produced in our country is made in the method of exploratory which has noise level of 73db ( a ) and 75db ( a ) . in order to analyze the influence of stator curve to noise , the author used tri - coordinate measuring instrument to measured exactly the inside surface of stator and got the straddling point coordinate , and made curve fitting by using matlab as language and studied the fitting effect and then worked out the equation of stator transition curve in return seeking , then comparied this method with the standard style and made the conclusion : the equation of atator transiting curve of apsp made by numerical controlled machine tool is close to theorical 5 power curve standard style , but compared with it , the stator transiting curve of apsp produced in exploratory has a major error . combining the testing results of noise , one can know that the qualily of stator transition curve play an importance to t he noise of the pump
国外生产的汽车动力转向泵是用数控机床加工的，其噪声值为71db ( a ) ，国内生产的汽车动力转向泵是用靠模方法加工的，其噪声值分别为73db ( a )和75db ( a ) ，为了分析定子曲线对泵的噪声的影响，本人用三坐标测量仪对定子内表面进行精密测量，获得定子内表面的离散点坐标，以matlab语言为工具对离散点进行曲线拟合，观察拟合效果，然后，用回归方法求出了定子过渡曲线的方程，并把该方程与理论方程标准型进行了比较，得出如下结论：用数控机床生产的汽车动力转向泵的定子过渡曲线方程非常接近理论5次曲线标准型，而用靠模方法加工的汽车动力转向泵的定子过渡曲线与理论5次曲线标准型相比较，则存在着较大的误差，结合噪声测试结果可知，定子过渡曲线的优劣，对泵的噪声大小有着重要的影响。