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Numerical Prediction of Form Factor and Wave Interference of A Trimaran for Different outrigger Positions

China Ocean Engineering 2022年第2期36卷 279-288页

作者： Ali DOGRUL Burak YILDIZ Department of Naval Architecture and Marine Engineering Turkish Naval AcademyNational Defense UniversityIstanbul 34940Turkey Department of Marine Engineering Operations Yildiz Technical UniversityIstanbul 34349Turkey

Trimaran hydrodynamics have been an important research topic in recent *** have even been chosen for naval surface *** this case,investigation of a trimaran with different outrigger positions is important and necessary for better hydrodynamic *** paper focuses on the numerical investigation of trimaran *** trimaran model used in this study is a 1/80 scale high-speed displacement frigate-type concept developed by the Center for Innovation in Ship Design(CISD)at Naval Surface Warfare Center,Carderock Division(NSWCCD).The numerical simulations were conducted for different outrigger positions at low and moderate Froude numbers by using commercial CFD software solving URANS equations.A verification and validation study was carried out for the numerical method in one configuration and one ship *** existing experimental results for the trimaran resistance in the literature were used for *** different outrigger positions were analyzed and the form factor of each configuration was calculated by the Prohaska *** total resistance was decomposed to its components using the form *** interference factor was calculated for each configuration in terms of total resistance,residual resistance and wave ***,wave profiles using the longitudinal wave cuts in different locations were obtained both numerically and *** was concluded that the outrigger position had different effects on the interference,total resistance and wave profile at different Froude *** was also shown that the CFD results were in good agreement with the experimental data in all *** conclusion,this study presents the results of interference effects for different trimaran configurations in terms of wave resistance in addition to the total resistance and residual *** numerical method was validated not only with the total resistance test data but also the longitudinal wave profiles a

关键词： CFD form factor wave interference wave profile outrigger trimaran

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Safety analysis of optimal outriggers location in high-rise building structures

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第2期8卷 264-269页

作者： ZHANG Jiet ZHANG Zhong-xian ZHAO Wen-guang ZHU Hong-ping ZHOU Chun-sheng Department of Civil Engineering and Mechanics Huazhong University of Science and Technology Wuhan 430074 China

This paper presents the restraining moments of outriggers acting on the core wall and the equation of the horizontal top deflection based on a simplified outrigger model. The deformation compatibility conditions between outriggers and core wall as well as the finite rigidities of outriggers are also considered. One case study was carried out to analyze the horizontal top deflection and the mutation of the restraining moments caused by the variation of outrigger location. The results showed that the method adopted in the paper is simple and reasonable. Some conclusions are valuable to the safety design of high-rise building structures.

关键词： High-rise building Frame-core structure outrigger Internal force mutation Horizontal top deflection Safety

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Application Analysis of Strengthened Story in Frame-Core Structures

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Journal of Southwest Jiaotong University(English Edition) 2009年第4期17卷 309-313页

作者：苏原陈传尧李黎 School of Civil Engineering and Mechanics Huazhong University of Science and Technology

Lateral deflection formulas are presented for analysis of the strengthened story applied to flame-core structures. For the framecore structures with top outriggers and with middle outriggers, the relationship between stiffness characteristic parameters of frame and outriggers and the top drift of structures under different loads is analyzed. It is indicated that when stiffness characteristic parameter of frame is large, outrigger efficiency for top drift reduction is low, and the mutation of internal forces occurs; when the stiffness characteristic parameter of frame is less than 3, installing the strengthened story is advantageous to frame-core structures.

关键词： Strengthened story Frame-core structure outrigger Stiffness characteristic parameters

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