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Studies on observation, identification and renewal theory for conditional stochastic field

Research Project

Project/Area Number 06650522
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 構造工学・地震工学
Research InstitutionTottori University

Principal Investigator

NODA Shigeru  TottorI University, Faculty of Engineering, Associate Professor, 工学部, 助教授 (80135532)

Project Period (FY) 1994 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1995: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 1994: ¥1,600,000 (Direct Cost: ¥1,600,000)
KeywordsStochastic field / Conditional simulation / Kriging / Renewal theory / Identification / Ground motion / Earthquake monitoring / Real-time damage estimation / 更新理論 / 条件付確率場 / 補間理論 / ハイブリッド推定
Research Abstract

The main results of this study may be summarized as follows :
1. Several aspects of a logmormal stochastic field were clarified, namely : (1) the optimal estimation by the simple Kriging is equal to conditional mean value, (2) unbiased least error variance by the Kriging differs from conditional variance, (3) estimated error variance does not depend upon observation data while conditional variance does, and (4) conditional simulation is not related to estimated error variance.
2. The universal Kriging was proposed as a method for identifying the optimal estimator of a lognormal stochastic field with unknown mean and known covariance. The simple Kriging estimator with known mean and covariance is superior to the universal Kriging estimator. The Kriging variance is not able to be evaluated, and only the variance indicator can be obtained.
3. A Gaussian discrete field was considered whose parameters of mean field and covariance matrix are uncertain. Discussions were made on the effect of observation data on the optimum estimator, conditional variance and error variance. Numerical examples were given to illustrate the effectiveness of the Baysian Kriging compared with the conditional simple and/or universal Kriging approaches.
4. A seismic information gathering and network alert (SIGNAL) system for a large-scale city gas network was developed based on extensive earthquake monitoring and geographic information system (GIS). The damage estimation to customers' buildings and pipelines, estimation of the magnitude and hypocenter, evaluation of the response spectrum, and decision analysis whether to shut-off or maintain the supply based on the estimated results were conducted.

Report

(3 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • Research Products

    (24 results)

All Other

All Publications (24 results)

  • [Publications] 野田 茂: "対数正規確率場におけるユニバーサルクリッギング" 第9回日本地震工学シンポジウム(1994)論文集. 1. 253-258 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 野田 茂: "クリッギングによる地盤震動の条件付シミュレーション" 第9回日本地震工学シンポジウム(1994)論文集. 1. 399-384 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 野田 茂: "リアルタイム地震工学を目指して" 第22回地盤震動シンポジウム(1994). 95-112 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Noda Shigeru: "Sinple Kriging and condifional simulation of a lognormal stochastic field" Applications of Statistics and Probobility (Proc. of the ICASP7 Conference). 1237-1242 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 野田 茂: "条件付正規確率場におけるベイジアン-クリッギング" 構造物の安全性および信頼性(JCOSSAR'95 論文集). 3. 649-656 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] 山崎文雄: "大規模都市ガス導管網の地震時警報システムの開発" 土木学会論文集. 331-340 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Noda Shigeru: "Universal Kriging in lognormal stochastic field" Proc.of the 9th Japan Earthquake Engineering Symposium. 1. 253-258 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Noda Shigeru: "Constrained simulation of earthquake ground motions by Kriging" Proc.of the 9th Japan Earthquake Engineering Symposium. 1. 379-384 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Noda Shigeru: "Towards the advancement of a sophisticated real-time earthquake engineering" The 22nd Symposium of Earthquake Ground Motion (1994). 95-112 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Noda Shigeru: "Simple Kriging and conditional simulation of a lognormal stochastic field" Applications of Statistics and Probability (Proc.of the ICASPS7 Conference). 1237-1241 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Noda Shigeru: "Baysian Kriging of conditional Gaussian stochastic field" Proc.of the 3rd Japan Conference on Structural Safety and Reliability. 3. 649-656 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Yamazaki Fumio: "Development of large-scale city-gas network alert system based on monitored earthquake ground motion" Journal of Structural Mechanics and Earthquake Engineering. 525/I-33. 331-340 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Noda Shigeru: "Simple Kriging and conditional simulation of a lognormal stochastic field" Applications of Statistics and Probability (Proc.of the ICASP7 Conference). 1237-1242 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 山崎文雄: "大規模都市ガス導管網の地震時警報システムの開発" 土木学会論文集. 331-340 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 野田 茂: "条件付正規確率場におけるベイジアン・グッギング" 構造物の安全性および信頼性(JCOSSAR'95論文集). 649-656 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 野田 茂: "リアルタイム地震災害制御システムの現状と将来" 鳥取大学工学部研究報告. 26. 261-293 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] 細井由彦: "阪神・淡路大震災における静脈系ライフラインの被災および復旧" 阪神・淡路大震災に関する学術講演会論文集. 627-634 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 能島暢呂: "阪神・淡路大震における水道の被害と復旧-送配水形態に着目した考察-" 阪神・淡路大震災に関する学術講演会論文集. 645-652 (1996)

    • Related Report
      1995 Annual Research Report
  • [Publications] 野田 茂: "リアルタイム地震工学を目指して" 第22回地盤震動シンポジウム(1994). 95-112 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 山崎文雄: "都市ガス導管網の地震時警報システムSIGNALの開発" 第22回地盤震動シンポジウム(1994). 85-94 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 野田 茂: "遺伝的アルゴリズムを用いた地震センサーの最適配置" 第9回日本地震工学シンポジウム(1994)論文集. 第1分冊. 241-246 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 野田 茂: "条件付対数正規確率場の同定" 第9回日本地震工学シンポジウム(1994)論文集. 第1分冊. 247-252 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 野田 茂: "対数正規確率場におけるユニバーサル・クリッギング" 第9回日本地震工学シンポジウム(1994)論文集. 第1分冊. 253-258 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 野田 茂: "クリッギングによる地盤震動の条件付シミュレーション" 第9回日本地震工学シンポジウム(1994)論文集. 第1分冊. 379-384 (1994)

    • Related Report
      1994 Annual Research Report

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Published: 1994-04-01   Modified: 2016-04-21  

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