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In this paper, design process and structure of the high-speed train bogie parameters determination test bench is introduced. The virtual prototype for the test bench is established by SolidWorks, and through the finite element analysis of key components of the test bench, such as the gantry framework and the single 6 degree of freedom loading system assembly, it shows that performance indexes of key...
A 3D finite element model of the band brake on Φ117 anchor windlass is established with PRO/E software. Transient temperature field in emergent braking condition and temperature distributions of the brake band and the friction linings are analyzed with a finite element analysis software-MSC.Marc. All these results could provide references for improving a design.
As one of widely used methods in calculating temperature field under single-row-pipe freezing, the Sanger & Sayles Formula yet bears certain error and inaccuracy. In order to investigate the sensibility and applicability of the Sanger & Sayles Formula, numerical calculation is adopted here to check against the formula result with regard to average temperature and thickness of the frozen soil...
Based on the large-span spatial structure of Ordos's airport terminal of the extension project, a set of construction process and key technology for large-span spatial steel structure was discussed in detail, including elementary assembly on ground, segmental hoisting, overhead unit connection and curvilinear accumulated sliding. A set of multi-stage construction analysis method was put forward. Through...
Based on the practical engineering of Harbin Songpu Bridge, this paper researches and discusses the establishment of cable-stayed bridge by using ABAQUS finite element model of the process, and some problems in the handling of the use of ABAQUS, and takes advantage of ABAQUS for non-linear geometry of the bridge static analysis of construction phase, and the calculation results were compared and discussed.
A mechanical and finite element method(FEM) model of vehicle and track structure coupling system are established. The modal and harmonic analysis are carried out by FEM. The natural frequency and modal shape are presented. The ride comfort and subgrade reaction are dealt with by considering the natural frequency. The influence of vibration isolation effect on system is also described by comparing...
Total bacterial count, carbon substrate utilization and diversity of microorganism is analysed. The results show that there are many differences between two different watershed ecosystem in Wen Yu River.
Blade is the key component to capture wind energy. It plays a vital role in the whole wind turbine. In this paper, Ply design and intensity analysis are conducted with layered shell elements to treat a composite vertical axis wind turbine blade based on ANSYS. The results show that the ply design meets the requirements of intensity and stiffness. The methods applied in this paper can be used as a...
The downwarping of the crane girder not only can influence the perforamnce, but also increase the energy loss. The importance of the pre arch to the bridge crane is put forward and reasonable pre arch curve can keep the vehicle move along a straight line. At last, the design of arch curve based on the finite element technique and structural optimization technology is discussed, which connects arch...
The structure optimization design of bridge crane based on HyperWorks is studied in this paper. The girder structure of the bridge crane can affect the performance of the bridge crane to certain extent. Based on the structure optimization technology of HyperWorks, the topological optimization, shape optimization and size optimization for one 50t bridge crane have been researched. The analysis results...
With the development of high-speed railway, more attentions have been paid gradually about the issue of vibrating of high-railway tunnel induced by high-speed train. Dynamic responses of railway tunnel under the vibrating load has been analyzed by finite element method through using the numerical simulation of vertical vibrating load induced by high-speed train with excitation function. The response...
A model of monolithic roadbed track system was established based on the finite element method (FEM). Modal and harmonic response analysis are carried out. Vibration features and dynamic response of the system are analyzed. The effect of different parameters, including rail fastenings, sleepers and elastic pads, on the riding comfort and the transmission rate of the track system is calculated. The...
In order to overcome the traditional calculation of loess collapsibility coefficient of water soaked by the lack, but also to address the suction of unsaturated soils is difficult to accurately measure and calculate difficult problems, this paper different saturation of conventional triaxial tests of loess to suction and according to the principle of equivalent deformation saturation equivalent basis,...
In order to meet the requirement of vibration and shock isolation simultaneously, a nonlinear rubber isolator is designed and analyzed. The stiffness of the rubber isolator can be changed with the displacement. The ANSYS software is set as simulation platform, and the finite element model of the nonlinear rubber isolator is built based on the hyperelastic and viscoelastic theory. The stiffness of...
Many footbridges have natural frequencies that coincide with the dominant frequencies of the pedestrian-induced load and therefore they have a potential to suffer excessive vibrations under dynamic loads induced by pedestrians. The main focus of this paper is on the serviceability assessment of a truss-type footbridge by the dynamic test and numerical analysis. Firstly, the design criteria proposed...
According to the different simplification methods for different types of legs for jack-up, the main parameters were confirmed in this paper. Moreover, sensibility analysis for the parameters was performed using FEM to give reasonable advice for the determination of the main patameters.
According to the norms “Rules for lifting appliances of ships and offshore installations 2007” issued by China Classification Society, use MSC. Patran to establish the pile holder finite element model of pile driving vessel, Consider the structural strength and stability of pile holder structure under typical working conditions of mass load, horizontal tilting load, wind load and inertia loads etc...
After establishing the vehicle-track finite element model, the system vibration characteristic is analysised. With the method of modal and harmonic response analysis, the effects on the riding comfort and foundation reaction of different steel spring stiffness and damping were studied. The sperling index reflects the riding comfort. At the same time, the foundation reaction and the force transmission...
Stiffness is one of the most important factors to vibration isolation system. Paper established a finite element model of the air spring, used nonlinear finite element method to analysis the rectangular shape air spring's stiffness. By considering the nonlinearity of the rubber-cord composite material, the geometric nonlinear process caused by large deformation and the nonlinear contact between the...
Soft Ground subsidence is an important factor of subgrade stability. A reasonable forecast of subgrade settlement is of great significance to the safety. ABAQUS finite element software can handle very complex problems and simulate highly nonlinear problems and has a good prospect in predicting the settlements of soft ground, but considering the coefficients of variation of soil parameters are usually...
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