分析动力学

In this paper, the author sets up the dynamic model of the vibratory extracting-driving piling machine, and carries out the dynamic analysis, parameter calculation and Matlab's simulation for this model. Using the equation reciprocity law to carry out the calculation of soil parameter and simulation, and using the genetic algorithm to make optimization of the machine on the basis of the simulation, the author gets the optimum self-induced vibration frequencies of the machine changing with the depth of the pile and the optimization result of other parameters, thus reaching the conclusion that along with the increase of pile sinking depth, the optimum self-induced vibration frequency becomes bigger, and the vibration mass becomes smaller, hence deepening the knowledge of the dynamic performance of this system.

本文建立了振动沉拔桩机的动力学模型并对这一模型进行了动力学分析、参数计算和Matlab仿真，并利用方程对等法进行土壤参数的计算和仿真，又在仿真的基础上使用遗传算法对桩机进行了优化，从而得出了路基加固振动沉拔桩机随沉桩深度变化而改变的最佳激振频率以及其它参数的优化结果，并得出了随沉桩深度的增加，桩机的最佳激振频率由小变大，最佳参振质量由大变小的结论，深化了对该系统动力学性能规律的认识。

In this paper, the author sets up the dynamic model of the vibratory extracting-driving piling machine, and carries out the dynamic analysis, parameter calculation and Matlabs simulation for this model. Using the equation reciprocity law to carry out the calculation of soil parameter and simulation, and using the genetic algorithm to make optimization of the machine on the basis of the simulation, the author gets the optimum self-induced vibration frequencies of the machine changing with the depth of the pile and the optimization result of other parameters, thus reaching the conclusion that along with the increase of pile sinking depth, the optimum self-induced vibration frequency becomes bigger, and the vibration mass becomes smaller, hence deepening the knowledge of the dynamic performance of this system.

本文建立了振动沉拔桩机的动力学模型并对这一模型进行了动力学分析、参数计算和Matlab仿真，并利用方程对等法进行土壤参数的计算和仿真，又在仿真的基础上使用遗传算法对桩机进行了优化，从而得出了路基加固振动沉拔桩机随沉桩深度变化而改变的最佳激振频率以及其它参数的优化结果，并得出了随沉桩深度的增加，桩机的最佳激振频率由小变大，最佳参振质量由大变小的结论，深化了对该系统动力学性能规律的认识。

Redundant driving structure designed based on a new type of universal Cartesian serial-parallel manipulator, kinetics equations and Euler equations constructed, complete analysis of each jointed points of the moving platform carried out, inverse kinetics solution can be obtained with the given parameters, which include the position and orientation of the manipulator, applied force on the output shaft, parameters of motion of output shaft and connecting bar and sliding block, computer programming adopted to get the valid data and its figure, thus found the perfect show of this redundant driving structure compared to the primary mechanism without redundant driving.

对全新结构的万能直角串并联机构进行冗余驱动设计，通过建立动力学万程和欧拉方程，对机构的动平台各输入铰点处的受力状况进行了全面的分析，已知机构在给定空间位置和姿态下的输出端的受力、主轴的运动参数、连杆的运动参数、水平和垂直运动滑块的运动参数时，可以反向求解机构约动力学反解，通过计算机语言编程计算和绘图得至（直观有效的结果数据，由此得知冗余驱动在改善原机构的动力学特性方面的良好表现。

The thermal decomposition kinetics of the N , N′-bis(5,5-dimethyl-2-phospha-2-thio-1,3-di- oxan-2-yl)ethylenediamine in air were studied by TG-DTG techniques. The kinetic parameters of the decomposition process for the title compound in the two main thermal decomposition steps were calculated through the Friedman and Flynn-Wall-Ozawa methods and the thermal decomposition mechanism of DPTDEDA was also studied with the Coats-Redfern and Achar methods.

以TG-DTG为手段，研究了 N ， N ′-二(5，5-二甲基-2-磷杂-2-硫代-1，3-二噁烷-2-基)乙二胺在空气中的热分解动力学，利用Friedman法、Flynn-Wall-Ozawa法对DPTDEDA进行了动力学分析，求出了该物质两个主要的热分解阶段的热分解动力学参数，同时利用Coats-Redfern法、Achar法研究了该物质的热分解机理。

The non-isothermal kinetic data were analyzed with the Achar equation, Coats-Redfern equation, Kissinger equation, Flynn-Wall-Ozawa equation and Starink equation.The mechanism function and kinetic parameters of the thermal decomposition in the third step were obtained.The chemical reaction mechanism (F3) controlled the third thermal decomposition process.The apparent activation energy and the pre-exponential factor were 351 kJ·mol-1 and 2.57×10 30s-1 respectively.

采用Achar方程、Coats-Redfern方程、Kissinger方程、Flynn-Wall-Ozawa方程和Starink方程对非等温动力学数据进行了分析，得到了第3步热分解反应的机理函数、动力学参数和热分解反应动力学方程，其热分解反应过程受F3机理控制，表观活化能为351 kJ·mol-1，指前因子为2.57×

By using isothermal DSC, we obtained the relationship of , and , and by using a non-linear fitting algorithm, we obtained the value of the parameters of the curing kinetics equation, found that the autocatalytic kinetics model with independent reaction order and was more similar with the experimental result then that of .

通过等温DSC分析了不同温度下树脂固化反应的自催化动力学模型，研究了，以及的关系，并通过非线性最小二乘法模拟求出了固化动力学方程的各参数，认为和互相独立的自催化动力学模型比的模型更好地适合于乙烯基酯树脂中高温固化反应的实验结果。

In Chapter 4, Short-time dynamic behavior of two-dimensional fully frustrated XY model near the Ising-like phase-transition temperature is studied with resistively shunted junction dynamics. The transition temperature and the dynamic and static critical exponents are estimated under both a periodic boundary condition and a fluctuating twist boundary condition using the short-time dynamic scaling analysis.

第四章应用电阻分流结动力学方法研究了完全阻挫XY模型在Ising型相变温度附近的短时动力学行为，运用短时动力学标度分析方法，我们得出了该模型在周期性边界条件下和涨落扭转边界条件下Ising型相变的临界温度和各种临界指数。

Established the tensile force kinetic model for the enwinding wire rope used the Lagrange kinetic equation and the continual kinetic theory in the start up and retard moment.

依据LAGRANGE系统广义动力学方程、连续体动力学理论分别建立起升系统启动及制动过程钢丝绳缠绕快绳拉力的动力学模型，并分别采用模态分析法及分离变量法求解

Kinematics and dynamics modeling and analyzing method of a 3-RRRT parallel robot was studied. Kinematic model of the 3-RRRT parallel robot was set up with both the branch bar's relative coordinates and movable platform's absolute coordinates used as it's generalized coordinates. On the base of Kane's equation, dynamics model of the 3-RRRT parallel robot was built. Dynamic Numerical simulation of the 3-RRRT parallel robot was finished by using Matlab software, and so it provides valuable reference for motion control strategy of the 3-RRRT parallel robot.

研究一种3-RRRT新型高速搬运机器人运动学与动力学建模及分析方法，以支链构件相对运动坐标和动平台绝对运动坐标作为广义坐标，建立了3-RRRT型并联机器人的运动学模型，结合带乘子的凯恩方程建立了3-RRRT型并联机器人的动力学模型，并利用Matlab软件平台进行了动力学数值仿真，进而为3-RRRT型并联机器人的控制策略研究提供参考。

The modeling methods about vestibule diaphragm, coupler and draft gear are introduced, too. Among the six Models, Model A and Model B can be used to study the vehicle stability and curve negotiation under different track situations. Model C and Model D can be used to carry out the stability, dynamic curving behavior and ride comfort of the high-speed passenger car. Model E and Model F are three-dimension train dynamic models which consist of three cars (head car, intermediate car and tail car).

所建立的6种动力学模型中，模型A和模型B可用于研究不同轨道条件下车辆的运动稳定性及动态曲线通过性能；模型C和模型D可以用来研究车辆的运动稳定性、动态曲线通过性能及运行平稳性；模型E和模型F是列车系统动力学分析模型，都是由三节车组成的列车单元，三车列车模型作为一个最小的列车单元，包含了头车、中间车和尾车，已能够反映整个列车的动力学特性。

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