Download or read book Efficient Probabilistic Structural Response Prediction for Aircraft Turbulence and Offshore Wave Loading written by Luke Lambert and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Efficient simulation Methods for Derivation of Probabilistic Properties of Offshore Structural Response Due to Random Wave Loading written by Mohd Khairi Abu Husain and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Offshore structures are subject to a wide variety of environmental loads (such as wind, wave and current) all of which exhibit a high degree of statistical uncertainty. The dominant load, however, is normally due to wind-generated random waves. Probabilistic procedures can account for these uncertainties by establishing the statistical properties of loads and responses and hence are necessary for risk-based assessment of these structures. The major obstacle in establishing the probabilistic properties of the response is the nonlinearity of the wave load mechanism and/or the structural system which leads to non-Gaussian distribution for response. The problem is further compounded by current and by intermittent loading on members in the splash zone, which have a significant effect on the statistical properties of response. The most versatile and the most reliable technique for predicting the statistical properties of the response of an offshore structure to random wave loading is the time simulation technique. However, this technique requires very long simulations in order to reduce the sampling variability to acceptable levels. If this technique can be speeded up, then it would be an ideal technique because it does not suffer from any of the inadequacies of the alternative methods and is applicable to all different types of structures. This research is concerned with reducing the computational demand of the conventional time simulation (CTS) method. To this end, a more efficient version of the time simulation technique (ETS) has been introduced which divides the simulated response extreme values into a number of groups based on the magnitude of the extreme values of their associated surface elevation or linear response records. The probability distribution of extreme responses for each group is then calculated individually based on a relatively small number of simulations, and then the total probability theorem is used to derive the probability distribution of response extreme values. In this study, the probability distribution of response extreme values together with the 100-year responses from the ETS models have been compared with corresponding distributions and lOO-year responses from the CTS procedure to examine the accuracy and the efficiency of the efficient time simulation technique. Overall, four different structures, three different sea states and three different current situations have been investigated. This was necessary to ensure that the conclusions of this study are valid for a broad range of conditions. The ETS technique was found to be many times more efficient than the CTS method.
Download or read book Prediction of Extreme Offshore Structural Response written by Mohd Khairi Abu Husain and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most reliable technique for predicting the statistical properties of the response of an offshore structure to random wave loading is the time simulation technique. However, this technique requires very long simulations in order to reduce the sampling variability to acceptable levels. If this technique can be speeded up, then it would be an ideal technique because it does not suffer from any of the inadequacies of the alternative methods and is applicable to all different types of structures. To this end, a more efficient version of the time simulation technique (ETS) has been introduced which divides the simulated response extreme values into a number of groups based on the magnitude of the extreme values of their associated surface elevation or linear response records. The probability distribution of extreme responses for each group is then calculated individually based on a relatively small number of simulations. Finally, the total probability theorem is used to derive the probability distribution of response extreme values. The ETS procedure is found to be many times more efficient than the conventional method.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Probabilistic Response Analysis of Offshore Platforms to Wave Loading written by Chang-Chun Hsieh and published by . This book was released on 1991 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wave Loading on Offshore Structures written by R. Burrows and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Idealization of Wave Loading in the Probabilistic Analysis of Offshore Structures written by A. D. Bound and published by . This book was released on 1984 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Twenty First Symposium on Naval Hydrodynamics written by National Research Council and published by National Academies Press. This book was released on 1997-09-11 with total page 1100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Download or read book Aviation Turbulence written by Robert Sharman and published by Springer. This book was released on 2016-06-27 with total page 529 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anyone who has experienced turbulence in flight knows that it is usually not pleasant, and may wonder why this is so difficult to avoid. The book includes papers by various aviation turbulence researchers and provides background into the nature and causes of atmospheric turbulence that affect aircraft motion, and contains surveys of the latest techniques for remote and in situ sensing and forecasting of the turbulence phenomenon. It provides updates on the state-of-the-art research since earlier studies in the 1960s on clear-air turbulence, explains recent new understanding into turbulence generation by thunderstorms, and summarizes future challenges in turbulence prediction and avoidance.
Download or read book Petroleum Abstracts written by and published by . This book was released on 1991 with total page 1512 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stochastic Dynamics of Marine Structures written by Arvid Naess and published by Cambridge University Press. This book was released on 2013 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: For students and professionals, this covers theory and methods for stochastic modelling and analysis of marine structures under environmental loads.
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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