再利用此模型，通过变换组合梁的高度和各钢板的厚度等参数比较分析梁的承载能力，应力，挠度的变化等。
Again USES the model, through transformation composite beam highly and various steel plates parameter comparative analysis beam and support capacity, stress, deflection change and so on.
通过对这种变换器的工作原理分析可知，主辅开关管都可以实现零电压或零电流开关，且电压、电流应力较小。
Through the operational principle it can be verified that all the switches are capable of achieving ZVS or ZCS condition, and the voltage and current stress are relatively low.
利用应力的坐标变换关系，推导出主应力与应力分量之间的微分关系，使主应力的精度计算更加简便。
By coordinate transformation of stress we have the differential relationship between the principal stresses and stress components to facilitate deviation calculation.
通过积分变换方法，求解热传导和热弹性力学方程组，由此得到激光辐照引起的温度场和热应力场的瞬态分布。
The equations of heat conduction and thermoelastic dynamics are solved through integral-transform method. Transient distribution of temperature field and thermal stress field is described.
介绍采用小波变换进行信号降噪的原理；利用小波分解和重构函数对轧机主传动轴应力和扭矩信号进行降噪处理。
In this paper, the theory of wavelet transformation in signal noise reduction is introduced, together with the algorithm of signal decomposition and reconstruction.
从岩土类材料极限应力状态线所致的各向异性出发，提出了应力空间变换的思想。
Based on the anisotropy induced by the critical stress line, the idea of transformation of stress space is presented.
笔者通过适当的函数分解和积分变换，将寻求复应力函数的问题转化为求解一正则型奇异积分方程，并借助积分方程理论给出了方程的求解方法。
Using proper decomposition of the functions and integral transformation, the problem is reduced to a singular integral equation, whose solution is given of the theory of integral equation.
通过矩阵变换，得到隧道围岩体扰动应力、应变和位移的解答函数式。
By matrix transformation, the solutions of surrounding rocks disturbance stress, strain and displacement are obtained.
研究二维弹性力学问题边界积分方程，通过分部积分变换消除了常规导数边界积分方程中的超奇异积分，获得仅含强奇异积分的应力自然边界积分方程。
Hence, a new stress natural BIE is developed, in which there only exist the strongly singular integrals instead of the hypersingular integrals in the conventional stress BIE.
对反激变换器的各种开关应力抑制技术进行了分析研究，指出了它们各自的优缺点和应用场合。
This paper analyzes and studies on the switch stress suppression techniques of flyback converters, points out the advantages, disadvantages and application of the techniques.
传统的推挽变换器存在着一些固有的缺点，诸如开关管的电压应力高、难以实现软开关等，限制了它的应用范围。
There are some intrinsic drawbacks in traditional push-pull converter, such as higher voltage stress and hard-switching of the switches, so the application area of the converter is limited.
基于坐标变换方法建立了适用于任意井眼轨迹的定向井套管应力三维有限元计算模型。
A 3d finite element model for calculating the casing stress in the directional Wells was developed based on the theory of coordinate conversion.
本文提出了一种新型的零电压零电流开关pwm推挽三电平直流变换器，其中开关管的电压应力为输入电压。
This paper presents a novel zero voltage and zero current switching (ZCS) PWM push pull three level converter in which the voltage stress of switches is input voltage.
提供了该变换器两个死区时间的设计方法，从而保证了开关电压应力限制在输入电压的一半，同时满足每个开关零电压关断的实现条件。
The design consideration for two dead times is presented to assure that voltage stress for main switches is within half of input voltage and ZVS for each main switch is achieved.
结合广义非线性强度理论采用变换应力三维化方法简单、合理地使模型实现三维化。
Using transformed stress method, it is easy and reasonable to combine the model with the Generalized Non-linear Strength Theory to make the model describe complex stress states.
提出了一种混合厚膜直流-直流(DC - DC)变换器单步进应力加速寿命试验方法。
A single step-stress acceleration life test method for hybrid thick film DC-DC converters was proposed.
恒频控制的准谐振变换器存在功率限制和高应力缺陷。
The constant - frequency quasi - resonant converter has the problems of power limitation and high stresses.
同时本文通过试验研究及现场应力测试，归纳出变换炉鼓包区域的材料及力学性能特征。
Meanwhile, through experimental study and field stress measuring & testing, the characteristics of material and the mechanical performance characteristics of the bulge zo…
从土体极限应力状态线所致的各向异性出发，结合原状土的力学特性，给出了原状土的应力空间、应力增量变换公式。
Based on the anisotropy induced by the critical state line, the idea of transformation of stress space is presented.
提出了矩阵相似变换在应力分析 （特别是三向应力分析 ）中的应用 ，使应力分析得以程序化。
This article proposes the applictaion of similarity transformation of matrix for stress analyses, which is available for the formula of stress analyses.
对用于分析步进应力加速寿命试验的累积损伤模型进行时间变换，保留模型对数据拟合的灵活性的同时简化了数学计算。
The time-transformation of the cumulative exposure model used to analyze step-stress accelerated life testing simplifies the mathematical mode without sacrificing flexibility for fitting data.
通过这种设计方法，可使变换器在一定输出电压范围内平均电流应力最小，并且使变换器在一定输出电压范围内基本实现软开关。
Average current stress is minimized in a range of output voltage, and the converter can achieve ZVS in the range of output voltage.
对三种典型应力波分别利用傅立叶变换与小波变换进行了对比分析，得知了它们的频率分布以及能量分布规律；
Three typical stress waves induced by impact loads were analyzed by both Fast Fourier Transform (FFT) and Wavelet, and the distribution rules of frequency and energy of stress waves were obtained.
谐振、准谐振或多谐振技术方案，变换器的电压电流应力较高。
However, voltage and current stress in these converters are higher.
传统交错并联双管正激组合变换器应用于高电压输出场合时存在变换器次级电压偏高、高频整流二极管电压应力大的问题。
The traditional interleaved two transistor forward converter exists high voltage stress of freewheeling diode when applied in high output voltage condition.
为了降低开关管应力，提高变换器的效率，设计了变形rcd缓冲电路，详细分析了其工作原理并计算了主要元件参数。
In order to decrease the switching loss and increase the efficiency of the converter, a improved RCD snubber is presented. Then its working modes are analyzed.
结果表明，频繁的蓄热和释热过程变换，使得蓄热体格孔壁面交替地受到拉应力和挤压应力的作用。
It has been found that a very frequent switching-over of the process of heat accumulation and release will subject the cellular-hole wall-surface alternately to tension and extrusion stresses.
将在交替变换荷载速率试验中得到的对应于低荷载速率的应力–应变曲线沿着卸载曲线平移，可以与高荷载速率对应的应力–应变曲线重合。
Stress-strain curve at slow loading-rate obtained in alternating loading rate test is shifted along the unloading curves, and then it overlapped on stress-strain curve at a fast loading rate.
将在交替变换荷载速率试验中得到的对应于低荷载速率的应力–应变曲线沿着卸载曲线平移，可以与高荷载速率对应的应力–应变曲线重合。
Stress-strain curve at slow loading-rate obtained in alternating loading rate test is shifted along the unloading curves, and then it overlapped on stress-strain curve at a fast loading rate.
应用推荐