Modeling of earthquake phase spectrum using a stochastic deferential equation and development of a simulation method of earthquake motion form phase spectrum

使用随机微分方程对地震相位谱进行建模并开发地震运动形式相位谱的模拟方法

基本信息

项目摘要

Both the amplitude and phase characteristics of earthquake motion provide key information needed to evaluate the aseismic capacity of designed structures. A method to simulate phase spectra is one of challenging topic in the design standard which is used to generate design earthquake motions compatible with the design spectra. We present a simple method for modeling the phase characteristic of earthquake motion based on group delay time and wavelet analysis. First the phase spectra are modeled for near and far source regions. Existing data sets of observed earthquake motions and wavelet analysis are used to calculate the group delay time of each earthquake motion. Regression equations for the mean group delay time and standard deviation of group delay time are obtained as functions of the earthquake's magnitude, epicenter distance and several source parameters. Simulating sample phase spectra assuming Gaussian nature of group delay time, earthquake motions compatible with the design response spectra then are simulated, and their characteristics investigated using ductility demand spectra. Second we develop a method to simulate realistic earthquake motions from phase spectra. The essential requirement of non-stationary time function such as earthquake motion is the causality. Because of this nature of earthquake motion its amplitude and phase cannot be assigned independently to simulate realistic earthquake motions. The restriction to be place on its phase spectra, however, has not been clearly defined to simulate a causal earthquake motion when its Fourier amplitude is given apriori. We develop a method to simulate earthquake motions from a given phase spectrum taking into account the causality restriction. Third we discuss a new method to simulate group delay time using the stochastic differential equation.
地震运动的幅值和相位特征为评价设计结构的抗震能力提供了关键信息。相谱模拟方法是设计标准中的难点之一,用于生成与设计谱相适应的设计地震运动。提出了一种基于群延迟时间和小波分析的地震运动相位特征简单建模方法。首先对近源区和远源区进行了相谱建模。利用已有的地震观测数据集和小波分析计算了每次地震的群延迟时间。得到了群延迟时间均值和群延迟时间标准差随地震震级、震中距离和几个震源参数的回归方程。模拟假定群延迟时间为高斯性质的样品相位谱,模拟符合设计响应谱的地震运动,并利用延性需求谱研究其特性。其次,我们提出了一种用相谱模拟真实地震运动的方法。地震运动等非平稳时间函数的本质要求是因果关系。由于地震运动的这种性质,它的振幅和相位不能独立地赋值来模拟真实的地震运动。然而,当它的傅立叶振幅是先验的时,还没有明确规定对其相谱的限制来模拟因果地震运动。我们开发了一种方法来模拟地震运动从一个给定的相位谱考虑到因果关系的限制。讨论了一种用随机微分方程模拟群延迟时间的新方法。

项目成果

期刊论文数量(24)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
DETECTION OF MIMOR STRUCTURAL DAMAGE USING CHAOTIC EXCITATION AND ATTRACTOR-BASED DAMAGE INDICATOR
使用混沌激励和基于吸引子的损伤指示器检测多摩结构损伤
Design earthquake motions for railway facilities in Japan
日本铁路设施的地震运动设计
NON-LINEAR HYSTERETIC STRUCTURAL IDENTIFICATION BY UTILIZING ON-LINE SUPPORT VECTOR REGRESSION
モンテカルロフィルタを用いた効率的構造道程法の開発とその適用
蒙特卡洛滤波器高效结构路径方法的开发及其应用
H∞ Filtering in Neural Network Training and Pruning with Application to System Identification
  • DOI:
    10.1061/(asce)0887-3801(2007)21:1(47
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    6.9
  • 作者:
    He-sheng Tang;S. Xue;Tadanobu Sato
  • 通讯作者:
    He-sheng Tang;S. Xue;Tadanobu Sato
{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

数据更新时间:{{ journalArticles.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ monograph.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ sciAawards.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ conferencePapers.updateTime }}

{{ item.title }}
  • 作者:
    {{ item.author }}

数据更新时间:{{ patent.updateTime }}

SATO Tadanobu其他文献

Effects of Ce, Cr, Er doping and annealing conditions on the microstructural features and electrical properties of PbZrO_3 thin films prepared by sol-gel process
Ce、Cr、Er掺杂及退火条件对溶胶-凝胶法制备PbZrO_3薄膜微观结构特征和电学性能的影响

SATO Tadanobu的其他文献

{{ item.title }}
{{ item.translation_title }}
  • DOI:
    {{ item.doi }}
  • 发表时间:
    {{ item.publish_year }}
  • 期刊:
  • 影响因子:
    {{ item.factor }}
  • 作者:
    {{ item.authors }}
  • 通讯作者:
    {{ item.author }}

{{ truncateString('SATO Tadanobu', 18)}}的其他基金

Exploration of stochastic phenomena disobeying the central limit theorem and development of innovative stochastic processes in the structural engineering
结构工程中不服从中心极限定理的随机现象的探索和创新随机过程的发展
  • 批准号:
    18K04334
  • 财政年份:
    2018
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Development of a new structural damage detection method using chaos attractor re-composition technique
利用混沌吸引子重构技术开发一种新的结构损伤检测方法
  • 批准号:
    23560581
  • 财政年份:
    2011
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Innovative method to simulate design earthquake motions by controllingearthquake motion phase and proposal of new performancedesign criterion
通过控制地震运动相位来模拟设计地震运动的创新方法以及新性能设计标准的提出
  • 批准号:
    19360209
  • 财政年份:
    2007
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Investigation of Seismic Hazard in Nile Delta Area
尼罗河三角洲地区地震灾害调查
  • 批准号:
    16404010
  • 财政年份:
    2004
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Modeling of non-stationary phase spectrum of earthquake motions 5
地震运动非平稳相位谱建模 5
  • 批准号:
    13450187
  • 财政年份:
    2001
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Factor analysis of damage to infrastructure occurred by the 1999 Chi-Chi earthquake in Taiwan and its international comparison
1999年台湾集集地震基础设施受损因素分析及国际比较
  • 批准号:
    13574001
  • 财政年份:
    2001
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Development of a damage detection system for structures using strain memorizing sensors
使用应变记忆传感器开发结构损伤检测系统
  • 批准号:
    12555135
  • 财政年份:
    2000
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Hybrid Civil Structural Control Experiments Using Mechno-Electric Variable Damper
使用机电可变阻尼器的混合土木结构控制实验
  • 批准号:
    10650463
  • 财政年份:
    1998
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Structure Health Monitoring to Mitigate Urban Seismic Hazard
结构健康监测减轻城市地震灾害
  • 批准号:
    10044155
  • 财政年份:
    1998
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (A).
Development of Structural Control Mechanism using Variable Damper
使用可变阻尼器的结构控制机构的开发
  • 批准号:
    08555115
  • 财政年份:
    1996
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)

相似海外基金

Frequency-related features derived from phase spectrum for robust speech recognition
从相位谱导出的频率相关特征,用于稳健的语音识别
  • 批准号:
    DP0209283
  • 财政年份:
    2002
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Discovery Projects
Frequency-related features derived from phase spectrum for robust speech recognition
从相位谱导出的频率相关特征,用于稳健的语音识别
  • 批准号:
    ARC : DP0209283
  • 财政年份:
    2002
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Discovery Projects
Modeling of non-stationary phase spectrum of earthquake motions 5
地震运动非平稳相位谱建模 5
  • 批准号:
    13450187
  • 财政年份:
    2001
  • 资助金额:
    $ 9.54万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
{{ showInfoDetail.title }}

作者:{{ showInfoDetail.author }}

知道了