力学进展

CURRENT STATUS AND DEVELOPMENT TRENDS OF TURBULENCE MODELLING

1996, 26(2): 145-165. doi: 10.6052/1000-0992-1996-2-J1996-015

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The paper disscusses the current status and development trends of turbulence modelling both at home and abroad. It is necessary not only to folloW the rational mechanics but also to take into account complex phenomena of engineering fluid flows when establishing turbulence modes. A generalized model should cover complex turbulent flows such as buovant recirculating flows,inverse gradient flows and muti-phase flows.

SOME KEY TECHNOLOGIES IN THE DESIGN AND CONTROL OF INTELLIGENT STRUCTURES

1996, 26(2): 166-178. doi: 10.6052/1000-0992-1996-2-J1996-016

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Sensory structure, controlled structure and intelligent structure are defined respectively according to their exact nature. In a sense of technology integration, some key technologies in design and control of large nonlinear intelligent structures are analyzed and reviewed, covering such areas as sensor,identification, optimization and adaptive control, the current state of the technique and the level of the intelligent structure. Some important problems are pointed out from the view point of the technology...

THE DEVELOPMENT OF STUDY ON COMPOSITE THIN-WALLED ROTATING BEAMS

1996, 26(2): 179-186. doi: 10.6052/1000-0992-1996-2-J1996-017

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The paper reviews the recent development of the study on composite thin-walled rotating beams. The stress is placed on the works on nonlinear composite beam theory which incorporate both in-plane and out-plane warping effects, and composite thin-walled beam model constructed via analytical and numerical approach. Further work needed is also discussed is the paper.

HOMOGENIZATION THEORY AND ITS APPLICATIONS IN BIOMECHANICS

1996, 26(2): 187-098. doi: 10.6052/1000-0992-1996-2-J1996-018

Abstract(2365)

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In this paper, the recently developed homogenization theory is introduced, within the framework of elasticity. The corresponding error estimate analysis is also presented here.It can be seen that the homogenization method provides a systematic way to combine stress analyses at the macro-and micro structure levels in the field of biomechanics.As a practical example, the numerical simulation of mechanical characteristics for compact bone by homogenization method is introduced.

THE ADVANCEMENT OF BIOHEAT TRANSFER IN MEDICINE

1996, 26(2): 198-213. doi: 10.6052/1000-0992-1996-2-J1996-019

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The paper sums up the research significance, present situation and characteristics of bioheat transfer in the field of biomedical engineering and other related fields.It points out some problems to be solved and their perspective applications. The article also compares the advantages and disadvantages of the currently existing methods in constructing bioheat transfer models and the techniques in measuring biothermal properties.

THE REVIEW ON THE DEVELOPMENT OF TALL BUILDING STRUCTURAL ANALYSES IN CHINA

1996, 26(2): 214-229. doi: 10.6052/1000-0992-1996-2-J1996-020

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This paper presents the development and the state of art of tall building structural analyses in China, which covers: various methods based on hand computing; the matrix displacement method based on member systems;the methods of analytic and semi-analytic Ordinary Differential Equation solver; the finite element method by using various new elements; structural dynamic and time-history analyses; CAD on tall buildings; and some special problems in tall building structural analyses.Some topics for further rese...

PROGRESS AND RECENT DEVELOPMENT OF STUDIES ON ELECTRORHEOLOGICAL FLUIDS──A REVIEW ON THE 5TH INTERNATIONAL CONFERENCE ON ELECTRORHEOLOGICAL FLUIDS, MAGNETIC SUSPENSIONS AND RELATED TECHNOLOGIES

1996, 26(2): 230-237. doi: 10.6052/1000-0992-1996-2-J1996-021

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From the 5th International Conference on Electrorheological Fluids,Magnetic Suspensions and Related Technologies, it can be seen that important progresses have been made in application researches on both electrorheological (ER) and magnetorheological (MR) fluids. The shear stress of MR fluids is one order of magnitude higher than that of ER fluids, so more attention has been paid recently to the research on MR fluids, The surface effect of ER fluids, and the influence of energy loss to the ER effect are i...

1996, 26(2): 237-282. doi: 10.6052/1000-0992-1996-2-J1996-022

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1996, 26(2): 283-284. doi: 10.6052/1000-0992-1996-2-J1996-023

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1996, 26(2): 285-287. doi: 10.6052/1000-0992-1996-2-J1996-024

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1996 Vol. 26, No. 2

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