2024 Vol. 45, No. 5

Cover And Contents
2024, 45(5)
Abstract(279) PDF(42)
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Comments of the Chief Editor
The Greatness of a University Lies in Its Excellence
LU Tianjian
2024, 45(5): 509-517. doi: 10.21656/1000-0887.450105
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The core of a great university lies not only in the improvement of its hardware facilities, but also in the profound academic atmosphere, educational philosophy, and cultural heritage it embodies. Based on the author's academic and work experiences at universities such as Cambridge, Harvard and Xi'a...
Solid Mechanics
Analogic Analysis of Orthotropic Plate Bending Problems With Gridwork Systems
YUAN Quan, YUAN Si
2024, 45(5): 518-528. doi: 10.21656/1000-0887.440232
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Orthotropic plates were analogized to gridwork systems, and the compatibility and incompatibility between these 2 structure types in static and dynamic analyses were discussed. The results show that, the gridwork results converge to the theoretical solution of plates through the grid refinement for ...
Structure Optimization of Holding Poles Based on the Improved Sine Cosine Algorithm
YANG Xiaomeng, LI Liang, HU Xiongfei, ZHOU Huanlin
2024, 45(5): 529-538. doi: 10.21656/1000-0887.440354
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The holding pole is a special lifting device for the construction of transmission towers. The optimization design model for the holding pole was established. The minimum mass was set as the optimization objective. The cross-section sizes of members, the connection modes of auxiliary members and the ...
Linear Bending Analysis of Functionally Graded Sandwich Shells With the Meshless Method Based on the Layer-Wise Theory
CHEN Wei, TANG Zhihong, PENG Linxin
2024, 45(5): 539-553. doi: 10.21656/1000-0887.440262
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Based on the 3D continuous shell theory and the 1st-order shear deformation theory, a moving least squares meshless method was proposed for solving the linear bending problem of functionally graded sandwich shells with the layered method. With the mapping technology, the 2D meshless node information...
Analytical Solution of the Concrete Homogenization Method Based on the ANN
LIU Yifan, MA Xiaomin, WANG Zhiyong, WANG Zhihua
2024, 45(5): 554-570. doi: 10.21656/1000-0887.440106
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By means of the self-defined artificial neural network (ANN) and its excellent function fitting function, aimed at aggregate-mortar matrix 2-phase concrete, the analytical solutions of the highly nonlinear coupling differential equation of the differential method in the indirect homogenization theor...
Structural Parameter Identification Based on the Interval Mathematics Method
SONG Haiyang
2024, 45(5): 571-581. doi: 10.21656/1000-0887.440319
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The statistical energy analysis (SEA) method was popularly employed to handle the high-frequency dynamics problems in many engineering fields such as aerospace and shipping. The damping loss factor and coupling loss factor were the major parameters in the SEA theory, and they can usually be identifi...
Research on Anti-Seismic Performances of Interlayer Isolation Structures With Lateral Stopping Viscoelastic Dampers
ZHAO Liju, WANG Shanku, WANG Xiaolin, GE Xinguang
2024, 45(5): 582-593. doi: 10.21656/1000-0887.440194
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Anti-seismic performances of the hybrid energy dissipation structure (HEDS) composed of an isolation interlayer with lateral stopping viscoelastic dampers (VEDs) under random excitation were systematically investigated. Firstly, the seismic motion equations for the HEDS subjected to the double-filte...
Fluid Mechanics
Experimental Study on Flow and Heat Transfer Characteristics of Ambient Air in NACA0021 and NACA4822 Airfoil-Fin Channels
LI Yong, ZHANG Yingchun, FU Yu, ZHOU Qirun, ZHAO Yufei, YANG Senjie, MA Suxia
2024, 45(5): 594-605. doi: 10.21656/1000-0887.440331
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The active regenerative cooling technology faces the bottleneck problem of insufficient heat transfer capacity when the scramjet flies at a higher Mach number. It is proposed to strengthen the heat transfer performance of the regenerative cooling channel with airfoil-fins. To verify the enhanced hea...
Finite Difference Solution of the Modified Mild Slope Equation for Wave Reflection by a Slope With Superimposed Undulating Seabed
NI Yunlin, ZHANG Xijiang, YU Jiangmei, SHEN Liangduo
2024, 45(5): 606-621. doi: 10.21656/1000-0887.440255
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A finite difference model was established to solve the modified mild slope equation, and the reflection of waves on the slope with superimposed undulating seabed was studied. Firstly, the reflection problems of incident waves on straight slope terrain, singly periodic sinusoidal sand ripples and dou...
Periodic Electroosmotic Flow of the Jeffrey Fluid in Microchannel Between Two Sinusoidally Wavy Walls
CHANG Long, BUREN Mandula, SUN Yanjun, JIAN Yongjun
2024, 45(5): 622-636. doi: 10.21656/1000-0887.440333
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The periodic electroosmotic flow of the Jeffrey fluid in microchannel between 2 sinusoidal wavy walls was studied. The momentum equation was solved with the perturbation expansion method, to give the approximate analytical velocity and volume flow rate of the periodic electroosmotic flow of the Jeff...
Effect of Shear Thinning Rheological Properties on Particle Migration in Microchannels
SHEN Yang, WANG Qikun, LIU Tangjing
2024, 45(5): 637-650. doi: 10.21656/1000-0887.440326
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A relative motion model was used to numerically simulate the phenomenon of particle aggregation in shear thinning fluids. To understand the shear thinning effects on particle mechanical properties in microfluidics, the shear thinning matching was performed with viscoelastic and non-viscoelastic flui...