有限差分方程 meaning in Chinese
finite difference equations
finite-difference equation
Examples
- It is well known that the integral and finite difference inequalities play a fundamental role in the development of the theory of differential and finite difference equations
积分不等式和离散不等式在研究微分方程与有限差分方程理论过程中具有非常重要的作用。 - It shows that for some difference equations , we ' d better adopt the expansion equations in the process of the heuristic method being applied to these difference equations
结果表明，对于部分有限差分方程，在用启示性方法分析其计算稳定性的过程中最好采用从差分方程推导来的展开式以期得到较合理的结果。 - In chapter 4 , the modified reynolds equation is solved numerically with the finite different method , and the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction under the serrate screw are obtained . at last , using numeral methods and coordinate graphs , the influences of serrate screw parameters on the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed
第四章，首先求出锯齿形螺纹下数值计算所需的有限差分方程，再推出了锯齿形螺纹作用下轴向摩擦牵引力、粘液膜厚度、粘液膜承载能力、周向摩擦阻力无量纲表达式，最后用数值计算方法求解，通过坐标图分析了锯齿形螺纹参数对轴向摩擦牵引力、最小粘液膜厚度、粘液膜承载能力、周向摩擦阻力的影响。 - In chapter 2 , an accurate modified reynolds equation is derived . the modified reynolds equation is solved numerically with the finite different method , the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction under the rectangular screw are obtained . at last , using numeral methods and coordinate graphs , the influences of rectangular screw parameters on the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed
第二章，首先推导了非牛顿流体的变形雷诺方程，化简了雷诺方程，得出了矩形螺纹下有限差分方程；还推出了矩形螺纹作用下轴向摩擦牵引力、粘液膜厚度、粘液膜承载能力、周向摩擦阻力无量纲表达式，最后用数值计算方法求解，通过坐标图分析了矩形螺纹参数对轴向摩擦牵引力、最小粘液膜厚度、粘液膜承载能力、周向摩擦阻力的影响。 - In chapter 3 , the modified reynolds equation is solved numerically with the finite different method , and the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction under the trapezoidal screw are obtained . at last , using numeral methods and coordinate graphs , the influences of trapezoidal screw parameters on the generated axial thrust force , minimal mucus film thickness , load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed
第三章，首先求出梯形螺纹下有限差分方程，然后推导了梯形螺纹作用下轴向摩擦牵引力、粘液膜厚度、粘液膜承载能力、周向摩擦阻力无量纲表达式，并用数值计算方法求解，通过坐标图分析了梯形螺纹参数对轴向摩擦牵引力、最小粘液膜厚度、粘液膜承载能力、周向摩擦阻力的影响。