查询词典 dynamic system

By discussing the characteristics of the torpedo turbine engines energy supply system, the scheme of the fish torpedo engine sources supply is demonstrated, and the three-speed pressure valve is designed. The author builds the dynamic process simulation calculation plant for the thermal engine thrust system which is based on the fix quantity fuel pump and pressure control valve.

通过对鱼雷涡轮发动机能源供应系统特性的讨论，论文探讨了开环压强控制的物理机理，建立了被控系统的机理模型，进行了鱼雷涡轮发动机能源供应系统的方案论证及其关键部件——三速制压力调节阀的性能设计，构建了基于定量燃料泵——压力调节阀的鱼雷涡轮发动机系统动态仿真平台并进行了仿真计算。

The low voltage breaker is composed of electric conducted system,extinguish-arc room, heat tripper and electric magnetism wink-moved mechanism.The functions of move mechanism directly impact the reliability of breaker's move. This topic is imported by using the exchange module of multibody dynamics simulation software automatic dynamic analysis of mechanical system,and then its movement was simulated by applying ADAMS,with the design and the optimization of DW16 Low-voltage breaker's ususal mechanical movement.

摘 要：低压断路器由导电系统、灭弧室、热脱扣器和电磁式瞬动机构组成，其中操动机构的性能直接关系断路器动作的可靠性，本课题利用Pro/E对操动机构进行三维实体造型，然后将利用多体动力学仿真软件ADAMS进行仿真，完成对DW16型低压断路器的常用操动机构的设计和优化。

THD+N: 20-Hz HPF, 20-kHz AES17 LPF Dynamic range: 20-Hz HPF, 20-kHz AES17 LPF, A-weighted Signal-to-noise ratio: 20-Hz HPF, 20-kHz AES17 LPF, A-weighted Channel separation: 20-Hz HPF, 20-kHz AES17 LPF Analog performance specifications are measured using the System Twot Cascade audio measurement system by Audio Precision in the averaging mode.

的THD + N：20 Hz的高通滤波器，20千赫AES17 LPF的动态范围：20 Hz的高通滤波器，20千赫AES17低通滤波器，A加权信号噪音比：20 Hz的高通滤波器，20 kHz的AES17，A加权频道分离低通滤波器：20 Hz的高通滤波器，20千赫AES17 LPF的模拟性能指标均采用了精密音频系统Twot梯级音频测量系统中的平均模式。

Based on a dynamic analysis of that model we found the cause that leads to the system long phase rise and fall , and we proved the undulatory inevitability of the system .

经济长波的上升阶段从长期来看，是由于经济系统内的这两个客观事物在总体上的相互"正作用——相互促进"起主导作用所导致的。

On this foundation, application changes control of structural slippery model designed dimensional machine theoretically inertial space contrail coordinates brachial carrier attitude and extreme ungual hand of motion change; of program of control of structural slippery model to overcome afore-mentioned changing controller of structural slippery model trembles brace up defect, add designed an ambiguous controller, with coming to dynamic adjustment to change according to control output of the system the structure slips the coefficient that the fast approach such as modular controller leads, achieve thereby make sure the system is had already answer quickly can eliminate original controller to have again tremble brace up the purpose of defect.

在此基础上，应用变结构滑模控制理论设计了空间机械臂载体姿态和末端爪手惯性空间轨迹协调运动的变结构滑模控制方案；为了克服上述变结构滑模控制器抖振的缺点，附加设计了一个模糊控制器，以根据系统的控制输出来动态调节变结构滑模控制器等速趋近率的系数，从而达到既保证系统具有快速响应又能消除原有控制器具有抖振缺点的目的。

The distribution of gear's contact stress, root stress, and contact engagement line in the engagement situation of gear pairs, were obtained on the base of explicit integration method. 3. Adopting the method of system matrix, the torsional vibration differential equation of general shafting was gained. The simple harmonic forms of excitation torque under the normal combustion or piston flameout of in-line engine and v-type engine were analysed. The decoupled algorithm of free vibration and forced vibration and the solution to the vibration damper's energy of resistance and the off-resonance calculation were studied. The sensitivity formulations of the natural frequency and vibration mode to physical parameters of system were derived by solving the eigenvalue problem. These sensitivity formulations provided the theoretical base for the dynamic modification of structure.

运用系统矩阵法建立了轴系的扭振微分方程，并对直列和V型发动机在正常发火和气缸熄火工况下的激振力矩进行了详细的简谐分析；基于精确方法推导了自由振动和强迫振动的解耦算法，给出了能量法计算中的减振器阻尼功求解和非共振计算方法；并研究了曲轴系扭振非线性分析中的变惯量问题，得到了单缸转动惯量的精确求解公式以及变惯量和固有频率的关系式；最后，从特征方程和振型正交性出发，推导了固有频率和振型对轴系转动惯量和刚度等物理参数的灵敏度，为扭振系统的结构动力学修改提供了理论基础。

Secondly, the flow characteristic of the intake system of pre-mixed spark ignition gas engine was studied on the vacuum pump. The discharge coefficient models of the air valve, the gas valve and the subsystem of the mixer and throttle were modeled. Their working flow characteristics were analyzed. And the dynamic model of the intake system was identified.

其次，在真空泵流量实验台上完成了预混点燃式气体燃料发动机进气系统的流量特性研究，建立了空气阀、燃气阀及"混合器+节气门"子系统的流量系数模型并分析了其工作流量特性；建立了发动机外围进气系统的动态模型。

The analysis and simulation of dynamic/static performance of the HHCS shows that it is a large inertial system, and that there are such adverse factors in HCS and its model test system as nonlinear, dead zone, time variable parameterse.g.

因此，它们的控制器的设计和控制策略的选择是至关重要的。为提高升沉运动模拟系统的升沉运动模拟精度，其控制器在位移反馈控制的基础上加人了前馈控制。

The analysis and simulation of dynamic/static performance of the HHCS shows that it is a large inertial system, and that there are such adverse factors in HCS and its model test system as nonlinear, dead zone, time variable parameters e.

最后根据所建立的数学模型和提出的仿真建模方法，论文建立了重载升沉补偿系统的静态特性仿真模型，建立了重载升沉补偿系统及其模拟试验系统、中载升沉补偿模拟试验系统、轻载升沉补偿模拟试验系统的升沉补偿的仿真模型。

An analysis method for vertical vibration of high-speed train and low vibration track system was proposed to study the dynamic performance of the system.

摘 要：为研究高速列车-弹性支承块式无碴轨道系统的动力学性能，提出一种竖向振动分析方法。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。