| 1. | Study on response computation of a vibration system with variable coefficient of sliding friction using equivalent linearization technique
非恒定滑动摩擦系数振动系统等效线性化计算方法研究 |
| 2. | Thirdly , the methodologies of equivalent linearization and moment equations method in the approximate method for random vibration of nonlinear structure are studied
第三，对非线性结构随机振动近似分析方法中的随机等效线性化法和矩方程法进行了研究。 |
| 3. | Say a few words about our understanding and suggestion on the design by analysis , including the modeling of finite elements , the stress classification of results by finite element method and the equivalent linearization method etc
摘要对分析设计中的若干重要问题提出了看法和建议，包括有限元建模、有限元计算结果的应力分类、等效线性化处理方法等。 |
| 4. | The bouc - wen differential equation model is used in modeling the hysteretic characteristics of these components . the pem ( pseudo excitation method ) combined with the elm ( equivalent linearization method ) is used to analyze the non - linear random vibration of such structures
采用bouc - wen等提出的微分方程模型描述进入非线性构件的滞变特性，运用虚拟激励法结合等效线性化进行结构非线性随机振动分析。 |
| 5. | Through a great deal of calculation and comparison with the results of monte carlo and other methodologies , a conclusion can be drawn that the precision in the calculation of equivalent linearization can satisfy the needs of practical civil applications for general engineering structures
通过大量计算并与montecarlo法及其它计算结果比较分析得知，对一般工程结构物，等效线性化法的计算精度能够满足工程应用的要求。 |
| 6. | The mode superposition method , based on equivalent linearization and forcing decoupling method of non - classical damping matrix of energy dissipation systems , is the just one . at the same time , iterative process will increase computing workload and forcing decoupling method increase error
基于等效线性化的强行解耦振型分解法在一定程度上符合此要求，但此方法存在着迭代计算工作量大、强行解耦增大计算误差的不足。 |
| 7. | The research work about the local non - linear random vibration of engineering structure under earthquake excitation includes ; discrete hinge model combined with the pem and the elm is used to solve such non - linear problem which the bend - type hysteretic effect of some components is taken into account
对于工程结构地震作用下局部非线性随机振动，将离散塑性铰模型与虚拟激励法和等效线性化法相结合，求解这一类局部发生弯曲型滞迟效应的非线性问题。 |
| 8. | Are uncertain and should be regarded as random variables , therefore the reinforced concrete frame is stochastic structure inherently , and then its motive equations converted to combined random differential equations for the uncertain parameters and external random excitation . these equations were solved by order - orthogonal expansion method with pseudo - excitation method , and then the statistic stochastic responses of random structure were obtained . at last , based on the stochastic cumulative damage model with double parameters developed by park , formulas were formulated for calculating structural earthquake damage probability using the structural reliability theory ( mainly jc algorithm ) in extensive random space
首先对受地震激励的剪切型钢筋混凝土结构进行建模，用随机等效线性化方法将二阶非线性微分方程组化成一阶线性微分方程组(或称之为状态方程) ；再考虑材料等参数的随机性，则状态方程成为复合随机微分方程组，将扩阶系统方法和虚拟激励方法推广并应用于这个复合随机微分方程组，求出结构的随机响应量的统计参数；最后采用随机累积损伤破坏准则，在广义随机空间内，用jc算法求解失效概率，进而求出结构的抗震可靠度。 |
| 9. | With the use of one - dimension equivalent - linear wave motion method which is wildly used at present in the analysis of earthquake site response , the platform values and the characteristic periods of ground surface acceleration response spectra of different profiles were calculated and analyzed under different ground motion inputs
利用目前工程上常用的一维等效线性化波动方法计算分析在不同地震动输入下，不同场地类别、三种土层结构的地表加速度反应谱的特征周期和平台值。 |
