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1998 Vol. 28, No. 4

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1998, 28(4): . doi: 10.6052/1000-0992-1998-4-J1998-172
Abstract(1520) PDF(1078)
Abstract:
In this paper, the modelling of the transversely isotropic behaviour of rock/soil is reviewed, such as transversely isotropic elastic-plasticity and yield criterion, the mechanicaJ models and the mathematical formula are also given.
ENVIRONMENThL MECHANICS AND SUSTAINABLE DEVELOPMENT
1998, 28(4): 433-441. doi: 10.6052/1000-0992-1998-4-J1998-162
Abstract(2275) PDF(856)
Abstract:
Looking into the 21st century, environmental problems are the most challenging subject which mankind have to confront.We mainly address the history of environmental mechanics development, a new branch in the discipline of mechanics, in the present paper. Furthermore,crucial issues and research directions for environmental mechanics are proposed as well. Finally,we illustrate these issues by a couple of typical examples.
A REVIEW ON VIBRATION CONTROL OF CIVIL STRUCTURE
1998, 28(4): 442-452. doi: 10.6052/1000-0992-1998-4-J1998-163
Abstract(1572) PDF(1105)
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This paper discusses the development of vibration control technique used in aseismic colltrol of structures. The intelligent control methods used in aseismic control design and analysis of the nonlinear control strategy axe reviewed. Finally some potential problems are proposed briefly.
RESEARCH ADVANCES OF COUPLED MECHANICAL AND ELECTRIC DYNAMICS
1998, 28(4): 453-460. doi: 10.6052/1000-0992-1998-4-J1998-164
Abstract(1806) PDF(982)
Abstract:
In this paper, the main domains of the dynamics of both the electro-mechanical and coupled mechanical and electric systems are introduced concisely. Two basic problems in the research of the coupled mechanical and electric nonlinear dynamics are described. The outcome of scientific researches on four aspects in nonlinear vibration and nonlinear dynamics of coupled mechanical and electric systems whose nuclei are electric machines is reviewed systematically.At last, the future research trends are outlined.
Yu Kaiping; Zou Jingxiang（Depatment of Space Engineering and Mechanics; Harbin Institute of Technology; Harbin 150001）;
1998, 28(4): 461-468. doi: 10.6052/1000-0992-1998-4-J1998-165
Abstract(2158) PDF(816)
Abstract:
The paper reviews the advance of FEM in time domain including compatible or incompatible time FEM and time-space FEM both in China and abroad. Major research results by these methods are briefly reviewed and the future research is commented. Finally, the vast vistas of the development of FEM in time domain is briefly discussed.
1998, 28(4): 469-478. doi: 10.6052/1000-0992-1998-4-J1998-169
Abstract(1552) PDF(945)
Abstract:
Since ferroelectric materials have electromechanical coupled properties, they are widely used in many fields, such as sensors, smart materials and smart structures. The research of ferroelectric materials becomes a very active area. This paper makes a brief review Of the research results in recent years and the research trend Of the constitutive relations of ferroelectric materials and the related problems.
1998, 28(4): 479-487. doi: 10.6052/1000-0992-1998-4-J1998-170
Abstract(1755) PDF(677)
Abstract:
In this paper,ways to calculate shock temperature are classified as three kinds of basic methods.These methods are described briefly and the evaluation of related material parameters is given also.In the calculation of shock temperature by using isentropic curve, an isentropic equation which is consistent with the Hugoniot curve is developed. Shock temperatures for iron are calculated and the results obtained by using three-term equation of state are in good agreement with the experimental results. In addit...
1998, 28(4): 488-498. doi: 10.6052/1000-0992-1998-4-J1998-171
Abstract(2071) PDF(874)
Abstract:
This paper gives a review on the inverse analysis in rock mechanics. The stress is placed on the classilication,the evaluating results and research characteristics of the inverse analysis of displacements.Future work is discussed in the paper.
1998, 28(4): 509-520. doi: 10.6052/1000-0992-1998-4-J1998-173
Abstract(1493) PDF(928)
Abstract:
This paper provides a review of importat studies related to the multidomain treatment for compressible fluid flow computations. The questions include the structure of multiblock grid, construction of interface conditions, theoretical problems such as stability, conservation, convergence and uniqueness, and critical discussions.
1998, 28(4): 521-531. doi: 10.6052/1000-0992-1998-4-J1998-167
Abstract(1576) PDF(1363)
Abstract:
This paper is a summary of the applications of symplectic theories and symplectic algorithms to Hamiltonian mechanics and the research progress Hamiltonian formulation for nonlinear water waves.The advanages and limitations of Hamiltonian variational principle and approaches for nonlineax water waves are discussed.In addition, it includes also discussions on the Hamiltonian formalism, symmetry and conseryation laws of KdV equation and BBM equation and comments on the problems concerned.
1998, 28(4): 532-544. doi: 10.6052/1000-0992-1998-4-J1998-168
Abstract(1743) PDF(867)
Abstract:
An overview on the researches of DNA biomechanics is presented in this paper. Emphasis is placed on the physical principles and advanced methods of measuring the mechanical properties of DNA based on the mechanics of continuous media, and some experimental results are given. The DNA supercoiling problems are also discussed.
1998, 28(4): 545-551. doi: 10.6052/1000-0992-1998-4-J1998-174
Abstract(1662) PDF(1497)
Abstract:
Multiscale science is the study of phenomena that couple distinct length or time scales.It would be difficult to overstate the scope of multiscale science, which is centraJ to such diverse fields as fluid dynamics, materials science, biology, environmental science, chemistry, geology, meteorology, and high-energy physics, Just as nonlinear and stochastic phenomena have been recognized as cross-catting approaches, we see that multiscale science lies at the heart of many of the most challenging problems of co...
1998, 28(4): 552-552. doi: 10.6052/1000-0992-1998-4-J1998-175
Abstract(1337) PDF(625)
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1998, 28(4): 553-553. doi: 10.6052/1000-0992-1998-4-J1998-176
Abstract(1104) PDF(887)
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1998, 28(4): 554-555. doi: 10.6052/1000-0992-1998-4-J1998-177
Abstract(1466) PDF(868)
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1998, 28(4): 556-561. doi: 10.6052/1000-0992-1998-4-J1998-178
Abstract(1310) PDF(634)
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1998, 28(4): 562-564. doi: 10.6052/1000-0992-1998-4-J1998-179
Abstract(1083) PDF(724)
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1998, 28(4): 565-0. doi: 10.6052/1000-0992-1998-4-J1998-180
Abstract(1315) PDF(558)
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1998, 28(4): 567-567. doi: 10.6052/1000-0992-1998-4-J1998-242
Abstract(1376) PDF(940)
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