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1997 Vol. 27, No. 3

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1997, 27(3): 289-300. doi: 10.6052/1000-0992-1997-3-J1998-211
Abstract(1644) PDF(1200)
Abstract:
The study on theories of the nonlinear normal modes is reviewed in this paper. Some problems and further directions in the field are pointed out.
1997, 27(3): 301-312. doi: 10.6052/1000-0992-1997-3-J1998-212
Abstract(1723) PDF(1372)
Abstract:
This paper focuses on the mechanical analysis of a new function material—Shape Memory Alloy (SMA). Reviews are made on its characteristics, constitutive relation and its application in deformation control, vibration control and damage detection.The application problems and improvement method are also briefly introduced
1997, 27(3): 313-325. doi: 10.6052/1000-0992-1997-3-J1998-213
Abstract(1961) PDF(1313)
Abstract:
In recent years, researchers have paid attention to the investigation of multiaxial low cycle fatigue. Fatigue damage cumulation, crack initiation and life prediction under multiaxial low cycle fatigue differ from those under uniaxial low cycle fatigue.Recent advances of multiaxial low cyclic fatigue are presented in the paper. Various evaluations of multiaxial low cycle fatigue life are discussed, and the emphasis is on the low cycle fatigue under nonproportional loading.
1997, 27(3): 326-341. doi: 10.6052/1000-0992-1997-3-J1998-214
Abstract(1596) PDF(1021)
Abstract:
This paper firstly discusses and summarizes the similarity methods in the dynamic plastic response of structures and the principles that relevant modeling experiments should obey. Then a brief survey is presented on the advances of the experimental studies on the dynamic plastic response of various structures loaded impulsively.
1997, 27(3): 342-357. doi: 10.6052/1000-0992-1997-3-J1998-215
Abstract(2189) PDF(1262)
Abstract:
Today, the study of unsteady, nonlinear interactions between vortices, turbulence and free surfaces is a very active research field in fluid mechanics. It has both theoretical and important practical backgrounds.The interactions involve very complicated nonlinear and unsteady processes, including vortex vortex, wave vortex interactions, the breaking, reunion, and merging of vortices near free surfaces. Moreover, the complex dynamical processes of formations and developments of semi coherent structures ne...
1997, 27(3): 358-371. doi: 10.6052/1000-0992-1997-3-J1998-217
Abstract(1837) PDF(1918)
Abstract:
The research and development of design methods for turbomachinery is reviewed and assessed in detail in this paper. Some recommendations for future researches are suggested.
1997, 27(3): 358-371. doi: 10.6052/1000-0992-1997-3-J1998-216
Abstract(1512) PDF(1634)
Abstract:
In this paper, the recent researches on sound produced by vortex motion and flow control by acoustic excitation are reviewed, and some theories of vortex & sound interaction in compressible turbulence are summerized. Finally the application of numerical simulation in this area is discussed.
1997, 27(3): 372-388. doi: 10.6052/1000-0992-1997-3-J1998-218
Abstract(1706) PDF(1020)
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1997, 27(3): 405-427. doi: 10.6052/1000-0992-1997-3-J1998-219
Abstract(1275) PDF(846)
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1997, 27(3): 428-430. doi: 10.6052/1000-0992-1997-3-J1998-220
Abstract(1032) PDF(749)
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1997, 27(3): 431-431. doi: 10.6052/1000-0992-1997-3-J1998-221
Abstract(1029) PDF(802)
Abstract:

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