简化法

The fatigue reliability analysis for the 16V240ZJB diesel engine crankshaft inserving DF4B internal-combustion locomotive were carried out in thisdissertation.Firstly,according to the fatigue loads of the crankshaft,the bendstress and torsion stress at danger zone in rated operation modes werecalculated respectively.The stress randomicity of the crankshaft was analyzedrelating operation modes of acceptance,and the probability distribution ofstresses were obtained with statistical analysis.

运用本文所提出的疲劳可靠性分析模型(干涉模型-Miner准则综合法及弯扭复合模型)和经分析简化得到的材料p-S-N曲线和p-Sa-Sm-N曲面，分别按一维、二维疲劳应力及弯扭复合应力三种情况对东风4B型内燃机车16V240ZJB柴油机曲轴进行了疲劳可靠性分析。

The previous research, in which macro-kinetics of ammoniation of phosphoric acid was measured in a double magnetic stirring reactor,found that the reaction between wet phosphoric acid and gaseous ammonia was a rapid reaction controlled by the gas-film mass transfer.

本文采用数学模型法，根据氨化反应过程的机理，通过小试建立数学模型并经合理简化，再通过中试对模型进行修正和完善，最后用工业大装置加以验证，使所得的模型可用于工业放大。

A special antisymmetric structure is proposed, and based on it, the direct design method is given to design the anti-synchronization controller. To prevent the controller design by active control method from indiscrimination, a simplified judging method of negative definite matrix is introduced to give the anti-synchronization active design of controller.

提出了一种特殊反对称结构，基于此给出了反同步控制器的直接构造法；针对主动控制法设计控制器的盲目性，引入了判定矩阵负定的简化方法，给出了实现反同步的主动控制法。

The effects of mass ratio on dynamic Characteristics were investigated by solving the dynamic equation of the model. The approximate formula of seismic response were deduced based on Energy Conservation Law.

通过求解简化模型的动力方程，分析了质量比对连续梁桥纵桥向的动力特性的影响，并用能量法推导了低阶振型地震反应的近似公式。

It gets the differential of the shadow image, The characteristics of the edge was atta.

采用微分法获取边缘特征点，简化了驱动电路，提高了测量精度以及信号处理效率。

Two GFRF system model identify algorithms based respectively on Signal Flow Graph/Driving Point Impedance and EDA simulation are proposed. In order to solve the problem of fault diagnosis that the inner structure and parameters of the Object under Test cannot be able to determine, a new fault diagnosis method based on the phase space reconstruction and GFRF general formula is investigated. This method builds up a bridge between the chaos theory and Volterra series analysis, which does not strongly depend on the topological structure and the testing data length, is sensitive to the fault property, traces monotonously the change of system fault, and possesses some significant predominance compared with conventional fault diagnosis methods of analog circuits.

提出了基于信号流图/驱动点阻抗法的GFRF算法和基于EDA仿真和非线性频谱响应特性分析的系统模型辨识算法，为解决工程实践中不能确知被测对象内部结构和参数时的故障诊断问题，研究了基于相空间重构和GFRF简化算法的复杂电子系统故障诊断方法，该方法建立了混沌理论与Volterra级数分析法之间的桥梁，它对被测对象的拓扑结构依赖性不强，对被测系统的故障性质的敏感，可以单调地跟踪系统故障的变化，这种基于混沌特性分析的故障诊断方法与其它的模拟电路的故障诊断方法相比较具有显著的优势。

According to the basic principle of self-balanced pile test method and the conversional simplified conversion method, the pile bearing capacity between the equivalent loaded piles and self-balanced piles were compared. The influence of negative skin friction on self-balanced pile test was studied. The conversion formulas of pile bearing capacity and settlement were derived.

根据自平衡测试法的基本原理，在传统简化转换法的基础上，通过等效受压桩和自平衡试桩上下桩段受力情况的对比分析，研究了负摩阻力对自平衡测试原理的影响，推得了桩承载力和位移的转换公式。

Multiple stepped rectangular waveguide bend and T-septum rectangular waveguide junction are the key blocks in the design of waveguide filters and diplexers. The above-mentioned junctions and bend are modeled by full-wave mode matching method.

本文采用模式匹配法全波建模了这三种波导接头，并在建模过程中采用了奇偶模理论，简化了公式推导和程序编写，完善了原有的模式匹配法程序库。

Multiple stepped rectangular waveguide bend and T-septum rectangular waveguide junction are the key blocks in the design of waveguide filters and diplexers. The above-mentioned junctions and bend are modeled by full-wave mode matching method.

本文采用模式匹配法全波建模了这三种波导接头，并在建模过程中采用了奇偶模理论，简化了公式推导和程序编写，完善了原有的模式匹配法程序库。3利用所编写的电磁仿真程序和商业仿真软件，优化设计并加工了一系列微波滤波器和双工器。

Calculation of integrated emissivities of diffuse cavities with lids "The integrated emissivities of diffuse cavities with lids have not been able to be calculated precisely up to now."

作者提出的&矩形区域近似法&与Bedford法计算精度相同，但避开了奇点处理问题，使问题得到充分简化。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失