提出了一种识别线性时变结构瞬时频率的方法。
A method for identifying the instantaneous frequency of a linear time-varying structure was proposed.
提出时变结构的GA在线自适应参数跟踪辨识方法。
Put forward an on-line adoption parameter tracing identification method using GA aiming at the time-varying structure.
在若干基本假设下，得到了时变结构的可靠度计算公式；
Under some basic assumptions, the reliability formula of time dependent structure is gained. Also the reliability ana…
研究了时变结构的自振特性和动力反应，建立了随机时变结构的自振和动力反应方程。
Natural vibration and dynamic response on time dependent structure are analyzed, the equations of natural vibration and dynamic response are set up.
基于投影估计子空间跟踪算法提出了一种新的可用于时变结构模态参数识别的递推子空间方法。
A novel recursive subspace method is presented for pseudo-modal parameter identification of time-varying structures based on projection approximation subspace tracking algorithm.
通过典型算例仿真分析表明这两种方法都可以有效跟踪非线性时变结构系统参数变化，并一定程度地提高了辨识精度。
The above method is validated by the simulation of a few nonlinear time-varying structural systems. The results show that the identification precision has been improved.
本文在总结现有施工期时变结构安全分析方法的基础上，引入4d -CAD和建筑信息建模技术，提出了基于4d信息模型的施工期安全分析模型和系统架构。
By inducting 4d-cad and building information modeling technologies, a safety analysis model and system framework were proposed in this paper based on the summarization of current analysis methods.
尽管水的外在形态可以千变万化，其内部是存在着多种结构的，在其冷却时更为明显。
Water, despite its protean appearance, has a lot of internal structure, particularly when it is cool.
对于调峰机组，当负荷变化时机组的过程模型甚至结构参数都具有明显的快时变特性。
For peak load unit, its process model and structure parameters have obviously fast time-varying characteristic while load changing.
当然，真实结构具有关于噪声、线性、时变等等方面的各种测量问题。
Of course, real world structures have all kinds of measurement problems with respect to noise, linearity, time variability, etc.
速度调节器采用变结构控制加以高速时的超前角控制。
Velocity controller is composition of variable structure control and lead angle control.
研究了一类线性离散时滞广义不确定系统的变结构控制的综合与设计问题。
This paper studies the synthesis and design problem of variable structure control for a linear discrete uncertain singular system with time-delays.
针对雷达伺服系统在小信号控制时存在的爬行问题，提出了一种变结构控制方法。
A variable structure control (VSC) method to deal with the problem of "crawling" in radar servosystem is presented.
对离散趋近律方法进行研究，针对利用该方法设计变结构控制时系统产生抖振的原因，提出三种改进方案。
The design of variable structure control for discrete time systems using method of approach is studied in this paper.
在大时变鲁棒数字PID控制方法的基础上，结合二自由度的内模控制结构，实现了控制器参数的数字双PID分离设计。
Separate designs of a dual PID controller were presented based on the large time-varying robust digital PID control combining with two degrees of freedom internal model control structure.
这种方法把真实结构分成机理模型部分和时变误差模型部分。
The method presented divides the actual structure into a mechanism model part and a time-varying error model part.
针对座舱压力调节系统的非线性和参数时变特性，提出了模糊滑模变结构控制方法。
Based on the nonlinear and time varying parameter of the cabin pressure regulating system characteristics, a control strategy of fuzzy sliding mode variable structure control is proposed.
系统的不确定性参数是时变的，但其结构已知。
The uncertainties are time-varying but with confirmed structure.
用有限元法进行钢筋混凝土结构徐变分析时，必须应用徐变应变增量方程。
Stochastic finite element method for random thermal creep stress in massive concrete structures is presented.
本文以实现整数倍抽取内插的CIC滤波器为基础，提出了一种实现分数倍采样率转换的时变CIC滤波结构。
This paper designs a time-variable CIC filter based on CIC filter for fractional ratio sample rate conversion.
针对导弹滚转通道参数时变性和快速性要求，提出了一种易于实现状态反馈变结构控制器的设计。
Simple variable structure controller based on state feedback is proposed in order to meet to the speediness and the time-variety of rolling channel of missiles.
根据对一类时变时间序列模型结构特点的研究，提出了一种时变ar模型的递推参数估计算法。
According to the structure characteristics of a time varying time series model, a new recursive parameter estimation algorithm of the time varying ar model is proposed.
对退化结构的时变可靠度，抗力必须表为随机过程。
The resistance of deteriorating structures is a non-stationary stochastic process.
大气腐蚀是造成钢结构损伤的一个主要因素，并且是随时间渐变的，其可靠性分析属于时变可靠性的范畴，而腐蚀模型在其中起重要的作用。
It varies with time and the reliability analysis considering corrosion is time variant reliability, while the model of the corrosion affects the reliability analysis significantly.
给出了一个新的用于线性时变参数结构系统模态参数识别的基于固定长度平移窗投影估计的递推子空间方法。
A novel recursive subspace method is developed based on fixed length moving window (FLMW) projection approximation used for estimating the modal parameter of linear time-varying structural system.
提出了分数倍抽样率转换器的高效时变网络结构的设计方法，并用现场可编程门阵列(FPGA)实现。
The design method for the efficient time-varying network architecture of the fractional multiple sampling rate converter is presented and its field programmable gate array (FPGA) is implemented.
对参数时变系统，提出一种新的变结构滑模控制结构和算法。
A new scheme of variable structure control with sliding mode for time-variable system is presented in this paper.
本文讨论了带有结构性不确定的线性时变系统的二次镇定问题。
In this paper, the quadratic stabilization of linear time-varying system with structural model uncertainty is discussed.
我们把多层递阶预报方法由参数时变系统推广到这类结构时变或结构与参数皆时变的系统上来。
The multi-level recursive prediction method has been extended to the systems with sturcture time varying and sturcture and paramer time varying together.
提出了一种适用于一类时变关联大系统的分散模糊变结构控制方法。
A decentralized variable - structure control for a class of uncertain large - scale interconnected systems is presented.
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