Based on this, using high frequency response amplifier, the union of transient data A/D real time collection and computer analysis was realized with advantages of cutting down the intermediate links, simplify trigging and more convenient operation.
在此基础上，利用自制的高频响放大器，实现了霍布金森杆测试中瞬态数据实时A／D采集和计算机分析的一体化，减少了中间环节，使触发更为简单、操作更加方便，并编制了相应的数据分析软件。
A concise summary of development of signal recording techniques in Hopkinson bar experiment is also presented. Based on this, using high frequency response amplifier, the union of transient data A/D real time collection and computer analysis was realized with advantages of cutting down the intermediate links, simplify trigging and more convenient operation.
在此基础上，利用自制的高频响放大器，实现了霍布金森杆测试中瞬态数据实时A／D采集和计算机分析的一体化，减少了中间环节，使触发更为简单、操作更加方便，并编制了相应的数据分析软件。
The transient daynamic analysis result shows the dynamic response of the support frame under the load which changes with time.
瞬态动力学分析的是建立在静力分析和模态分析的基础上的。
The analysis, simulation and experimental results show that MPT control technique has much faster transient response than traditional PWM control technique and much lower output voltage ripple than the pulse train control technique.
研究结果表明，MPT控制变换器比传统PWM控制变换器瞬态性能更好
Harmonic analysis of the STATCOM using the proposed analytical approach reveals that the total harmonic distortion of the STATCOM output voltage is minimal as the modulation index is fixed at unity at steady state. Based on these results, two new STACOM controllers are proposed in order to achieve both minimal steady-state harmonics and fast transient response.
其次在博士论文中也提出一个基於第一类Bessel函数的解析式谐波分析方法，由谐波分析的结果，可得知在稳态情况下，当调变系数被固定为1.0时，静态同步补偿器输出电压的总谐波失真会是最低，本论文利用此结论提出两个新静态同步补偿器控制器。
Vibration and wave; transient response; statistical energy analysis
振动与波；瞬态响应；统计能量法
Chassis framework and overhead equipment bracket are modified. Natural frequency and vibrancy are gained by mode analyzed of the structural, which are chiefly concerned by engineers. Besides, transient response analysis of the model is implemented, and the conclusions demonstrate that the rigidity of the partial structure is weak. After improving the structural and calculating the model again, the result proofs the practicability of the design.
对底盘与顶置设备支座进行二次建模，通过对结构力学模型的固有频率和振型的分析，得到了所关心振动频率内的固有频率和振型；同时对结构进行瞬态响应研究，预测底盘后端部位的横梁处刚度强度较弱，并对刚度较弱的地方进行改进再计算，对比结果验证设计的可行性。
By dint of finite element model of spindle system which is based on analysis of finite element software ANSYS, mode of a certain numberical control milling machine s spindle system with the transient response theory and bearing dynamic stiffne...
利用数据表进行加载，并就铣削特定工况下进行瞬态响应分析。得出主轴系统的较低阶固有频率、振型、最大综合变形以及主轴系统的模态不是常量，主轴系统的设计计算应以滚动轴承的动刚度和主轴系统的动模态为依据的结论。
Therefore, there have been so many work done about the transient response analysis of transmission line.
所以，人们对传输线的时域响应分析作了大量的工作。
Incurrent research, aiming at the rupture problem engendered in the shooting process of acertain 5.56mm automatic rifle, the strain and stress distributions on the cartridge caseunder the action of axial pull have been analyzed. Based on the theories of elastic-plasticmechanics and contact mechanics, a mathematic and physical model of the cartridge-caseand chamber system has been set up; and based on the platform of the general softwarepackage APDL of ANSYS for finite element analysis, a parameterized model of thecartridge-case and chamber system has also been established. The method for nonlinearFEA has been adopted to analyze the stress distribution on the entire cartridge-case andchamber system, and the method of contact element has been employed to investigate thecontact stress between the cartridge case and chamber, and then the influences of frictioncoefficient and locking space on the static and dynamic stress and strain response of thecartridge case and chamber to the action of power gas have also been discussed. On thebasis of a lot of numerical tests, a kind of element Plane13, which is concentrated incoupled computation of heat and construction, has been used finally to simulate thetransient response of the cartridge-case and chamber system to the power gas. Throughloading the temporary thermal characteristics of explosive gas in the procedure of emulate, the corresponding transient thermal stress distributed on the entire system under thecombined load of transient thermal stress and transient pressure has been obtained. Owingto these comprehensive considerations, the numerical results obtained in this paperrepresent the actual situations comparatively exactly.
本文针对某5.56mm自动步枪在工作中出现断壳的问题，分析了弹壳在轴向拉力作用下的应力应变；基于弹塑性力学及接触理论，建立了弹壳弹膛系统的数学、物理学模型，在通用有限元ANSYS软件的参数化建模工具APDL平台上，建立了弹壳弹膛系统的参数化模型；采用非线性有限元法计算了弹壳弹膛系统的整体应力，引入接触单元法分析弹壳和弹膛的接触压力，探讨了在不同的摩擦系数和不同的闭锁间隙对弹壳弹膛静、动态响应的影响；本文进行了大量的尝试，最后确定采用热、结构耦合单元Plane13，在计算中加载了火药气体的温度历程，成功的获得了弹壳弹膛系统在瞬态的热载荷和瞬态的压力载荷同时作用下弹壳弹膛系统的热应力数值解，考虑因素全面，比较真实的反映了弹壳弹膛系统在火药气体压力和热载荷下作用的情况。
To achieve high-performance PMSM position servo system, advanced control scheme, which is static precision, transient responses and self-adaptation and anti-disturbances, is needed in practice. Based on the analysis on the features and control principles of PMSM, this thesis established its math model using id=0 vector control method. Three close loops control system, which includes current loop, velocity loop and position loop, was built up. For position loop, the main feedback loop, we chose a new adapted-fuzzy CMAC intelligent controller, which includes self-learn ability of neural net and quick response merit of fuzzy controller. Finally, the author simulates PMSM position servo system by the simulink of matlab, an advanced computer simulation tool.
本文对PMSM的控制机理和特性作了较为深入的分析；建立了PMSM的数学模型，并采用了id=0的矢量控制策略；对控制系统组成及控制方式作了分析和比较，在此基础上建立了电流环、速度环和位置环的三闭环控制系统，对作为反馈主回路的位置环采用了模糊CMAC神经网络控制方法，该方法兼具模糊控制器的快速性和神经网络的自学习能力；构建了针对PMSM位置伺服系统的模糊CMAC控制器结构及其相应的算法；利用先进的计算机仿真工具（Matlab下的Simulink）对所提出的控制策略进行了数字仿真和分析；仿真和实验结果表明本文所提出的控制策略对PMSM位置伺服系统进行控制具有良好的鲁棒性能和快速性。
Material ageing was induced in the transient and spectrum analysis of pier subjected to underwater explosion. Its influence over the response of pier was discussed.
考虑材料老化，对桥墩进行爆破地震作用下的动力时程分析及爆破地震谱分析，并与未考虑老化的结果进行对比，研究材料老化对爆破地震作用下结构动力响应的影响规律。
Based on the numerical analysis of transient longitudinal vibration model of an integrate pile, it is found that parameters of soil, pile and impact force have effects on dynamic response of the pile.
基于完整桩瞬态纵向振动模型的数值分析，表明土参数、桩参数和激振力参数都对桩的动力响应发生影响。
The creation and solution of dynamic equations and problems concerning input characteristics, transient angular frequency and analysis of amplitude response are described.
文中阐述了动力学方程的建立和求解、系统输入特性和瞬态角频、振幅响应分析等问题。
This method is also applicable to the analysis of the rotor-support system with unsymmetric stiffness. To solve the transient response of the system, expressions of the transient squeeze film force and expressions of the transfer matrix of a disk in transient response are derived.
为了求转子系统的瞬态响应，还分析、导出了瞬态挤压油膜力，盘、质点在瞬态响应中的传递矩阵等的表达式。
Analysis of Transient Response of Flexible Jeffcott Rotor; The results show that the vector method of single plane is valid.
单盘转子不平衡的瞬态动力响应分析通过砂轮机转子动平衡介绍了羊平面平衡向量法的步骤。
The theoretical analysis shows that with the tuning parameter, not only the domain of attraction is increased but also the stability and the ability to compensate the friction effects have no been influenced, and the transient response of systems is still smooth.
研究表明，引入可调参数不仅能够扩大吸引域，而且对系统稳定性和摩擦补偿能力无任何影响，系统的动态响应依然具有平滑的特性。
Research on reactor dynamic analysis under seismic and LOCA conditions has been fulfilled. It includes transient discharging loading analysis for reactor and steam generator under LOCA condition, dynamic response analysis for reactor structures, and dynamic response analysis and evaluation for fuel assembly structures.
对核反应堆在地震和失水事故下结构动力分析开展了研究，包括反应堆和蒸汽发生器在失水事故下的瞬态卸压载荷分析研究、反应堆结构动力响应分析研究和燃料组件动力响应分析评定研究。
In particular, the influence exerted by oil viscosity and gap extension on the rattle characteristics is investigated through the analysis of the transient response of the driven gear by imposing a harmonic motion to the driving gear.
特别通过用对传动齿轮谐和运动的影响分析从动齿轮的瞬态响应来研究油粘度和间隙延展对敲击特性施加的影响。
A Study on the Transient Response Analysis and Fatigue Life Evaluation of a Special Vehicle Frame Under Impact Load
某特种车架在冲击载荷下的瞬态响应分析及疲劳寿命评估研究