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Mechanical properties and failure behavior of rock with different flaw inclinations under coupled static and dynamic loads
The deep fissured rock mass is affected by coupled effects of initial ground stress and external dynamic disturbance. In order to study the effect of...
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Experimental and numerical studies on vibration characteristics of a railway embankment
In order to study the dynamic response of the rail embankment under different speeds and moving load of following vehicles, a model experiment with a...
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Vibration characteristics of bogie hunting motion based on root loci curves
Vibration behaviors of bogie hunting motion contain key information that dominates the dynamic performance of rail vehicles, in which the eigenvalue...
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Development of a 1/2-length prototype high field Nb3Sn magnet for the 4th generation ECR ion source
A 4th generation ECR (electron cyclotron resonance) ion source FECR (first 4th generation ECR ion source) is under construction at IMP (Institute of...
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Micro-failure process and failure mechanism of brittle rock under uniaxial compression using continuous real-time wave velocity measurement
In this study, the micro-failure process and failure mechanism of a typical brittle rock under uniaxial compression are investigated via continuous...
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Crashworthiness of bamboo-inspired circular tubes used for the energy absorber of rail vehicles
A new type of thin-walled circular tubes (CTs), which is inspired by the bamboo with highly-efficient energy absorption (EA) capability, was proposed...
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Analytical solution for evaluating deformation response of existing metro tunnel due to excavation of adjacent foundation pit
The excavation of foundation pit generates soil deformation around existing metro tunnel with shield driving method, which may lead to the...
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A novel multi-layer isolation structure for transverse stabilization inspired by neck structure
Inspired that the neck structure can stabilize the head from body movements and external dynamic vibration by the role of intervertebral disc and...
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The evolution and instability of wake structure around an impulsively stopped sphere with a streamwise magnetic field for 600 ≤ Re ≤ 1400
The evolution of wake structure in a flow around an impulsively stopped sphere in an incompressible viscous fluid is investigated under the influence...
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Stress-strain-acoustic responses in failure process of coal rock with different height to diameter ratios under uniaxial compression
Residual coal pillars play an important role in mining the adjacent coal seam safely, managing the gobs and maintaining the stability of abandoned...
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Fracture behavior of granite specimen containing a single fissure under uniaxial compression by grain-based model 3D
The understanding of the mechanical behavior of granite containing fissures is of great significance for geothermal energy exploitation and...
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Dilatancy and liquefaction behaviour of clean sand at wide range of confining stresses
The state of clean sand was mainly dependent on its void ratio (density) and confining stress that greatly influenced the mechanical behavior...
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Pressure waves acting on wall of a tunnel and their impact on the tunnel’s structural safety
The transient pressures induced by trains passing through a tunnel and their impact on the structural safety of the tunnel lining were numerically...
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A comprehensive comparative investigation of frictional force models for dynamics of rotor-bearing systems
Vibrations of a rotor-bearing system (RBS) can be affected by the frictional forces between the components of the inherent bearings. Thus, an...
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Effects of axial static stress on stress wave propagation in rock considering porosity compaction and damage evolution
A wave equation of rock under axial static stress is established using the equivalent medium method by modifying the Kelvin-Voigt model. The...
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Deformational characteristics of sensor-enabled geobelts incorporating two failure modes in reinforced sand
Geobelt deformation is of significance when making prejudgments on potential failure planes in reinforced structures. A failure plane results from...
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Influence of radial forging process on strain inhomogeneity of hollow gear shaft using finite element method and orthogonal design
Due to the current trend towards lightweight design in automotive industry, hollow stepped gear shafts for automobile and its radial forging process...
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An adjoint-based optimization method for reducing the axial force of a reactor coolant pump
To alleviate the wear of a thrust bearing in a reactor coolant pump (RCP) while ensuring the hydraulic performance of the pump, an adjoint-based...
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Strength and energy exchange of deep sandstone under high hydraulic conditions
To investigate the influence of confining pressure and pore water pressure on strength characteristics, energy storage state and energy release...
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Frequency comb in a parametrically modulated micro-resonator
In this paper, we report the frequency comb response experimentally and analytically in a rhombic micro-resonator with parametrical modulation. When...
