Design and Modal Analysis of Gravity Dams by Ansys Parametric Design Language

Q3 Multidisciplinary Walailak Journal of Science and Technology Pub Date : 2014-01-20 DOI:10.2004/WJST.V11I12.866

S. Khosravi, M. Heydari

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引用次数: 9

Abstract

For find the optimal shape of concrete gravity dams including dam-water-foundation rock interaction, model of 2-dimensional finite elements that include the dam, reservoir and foundation is provided using the finite element software ANSYS in the most widely used APDL (Parametric Design Language) language programming. To consider 11 geometry variables, finite element analyses of gravity dams are carried. The 11 geometric variables are modeled for each gravity dam and geometry. In order to check and verify the model and ensure the assumptions used during the modeling, the dam is considered in 4 different cases: 1) Dam with empty reservoir and rigid foundation. 2) Dam with empty reservoir and flexible foundation. 3) Dam with full reservoir and rigid foundation. 4) Dam with full reservoir and flexible foundation. To assess the accuracy of this modeling, the modal analysis and mode shapes of the Pine Flat, koyna and idealized triangular Dams is studied and the results are compared with other reference results. Numerical results show the merits of the suggested technique for gravity dam shape simulation. It is also found that considering the dam-water-foundation rock interaction has an important role for safely designing a gravity dam. doi: 10.14456/WJST.2015.13

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基于Ansys参数化设计语言的重力坝设计与模态分析

为了寻找包含坝-水-基岩相互作用的混凝土重力坝的最佳形态，在应用最广泛的参数化设计语言(APDL)语言编程中，利用有限元软件ANSYS建立了包括坝、库和基础在内的二维有限元模型。考虑11个几何变量，对重力坝进行了有限元分析。对每个重力坝及其几何形状的11个几何变量进行了建模。为了对模型进行校核和验证，并保证建模过程中所使用的假设，考虑了4种不同的情况:1)水库空、地基刚性的大坝。2)空库柔性地基坝。3)水库满、地基刚性的大坝。4)水库满、地基柔性的大坝。为了评估该模型的准确性，研究了松滩坝、科纳坝和理想三角坝的模态分析和模态振型，并将结果与其他参考结果进行了比较。数值计算结果表明了该方法在重力坝形状模拟中的优越性。考虑坝-水-基岩相互作用对重力坝的安全设计具有重要意义。doi: 10.14456 / WJST.2015.13

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来源期刊

Walailak Journal of Science and Technology Multidisciplinary-Multidisciplinary

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

24 weeks

期刊介绍： The Walailak Journal of Science and Technology (Walailak J. Sci. & Tech. or WJST), is a peer-reviewed journal covering all areas of science and technology, launched in 2004. It is published 12 Issues (Monthly) by the Institute of Research and Innovation of Walailak University. The scope of the journal includes the following areas of research : - Natural Sciences: Biochemistry, Chemical Engineering, Chemistry, Materials Science, Mathematics, Molecular Biology, Physics and Astronomy. -Life Sciences: Allied Health Sciences, Biomedical Sciences, Dentistry, Genetics, Immunology and Microbiology, Medicine, Neuroscience, Nursing, Pharmaceutics, Psychology, Public Health, Tropical Medicine, Veterinary. -Applied Sciences: Agricultural, Aquaculture, Biotechnology, Computer Science, Cybernetics, Earth and Planetary, Energy, Engineering, Environmental, Food Science, Information Technology, Meat Science, Nanotechnology, Plant Sciences, Systemics