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The layout of a new type bus is different from the traditional bus, the change of the structure has considerable influence to the durability to the body, it's necessary to predict the fatigue life of vehicle body at the early stage of the design. In this paper, the finite element model of the vehicle including the body frame, chassis and tire was built by using the CAE technology Virtual Proving Ground,...
Underground Culvert construction always adjacent to existing pile foundation, it is an important problem how to ensure the security of the existing pile. Taking the Underground Culvert at West Ring Road of the South-North Water Transfer Project as an example, the 3D numerical simulation had been carried out and the stress deformation Law and the stability of the pile was studied. The results had shown...
The research of load distribution is not only an important part of bearing theory but the basis of studying the other performance indicators of bearings as well. Based on the contact theory of Hertz, the relation of geometric deformation of slewing bearing under certain loads is analyzed, and an analytical formula of load distribution for the slewing bearing under the action of radial force, axial...
In order to design a quartz accelerometer with high-precision vibration characteristics and strong resistance to external shock, a novel double-ended tuning fork quartz accelerometer that combines the well-known principles of the tuning fork techniques is developed. The mechanical structure of the double-ended tuning fork quartz accelerometer comprises of a pair of double-ended tuning forks, one damping...
Through the analysis of three-dimensional hub model by using finite element, detailed stress distribution is obtained. On this basis, the dangerous sections of structural discontinuity regions are made stress analysis and classification by using stress linearization method, the stress evaluation is carried out through using design by analysis theory. The results show the structure is safe and reliable.
ANSYS/LS-DYNA finite element software is applied to analysis shocking simulation for washing machine and its packaging with different postures (surface, edge) and different dropping heights. The yielding critical dropping height of suspender is obtained. The response acceleration curves, effective stress and plastic strain cloud fringe distribution on washing tub and shell are also available. The...
Aiming at the design defect of pre-existing Electro-magnetic circuit parameters on Electro-magnetic treatment equipment, the article gives some design methods-field-circuit methods which design and adjust the electromagnetic processing parameters. Mean while, the interdependent relationship of the Electro-magnetic parameters, temperature field parameters and stress parameters is displayed in the models...
Tower structure of the wind generating set is an important load-bearing parts, its design will directly affect the work of wind generating set performance and its reliability. In this paper, the design of tower structure of 180KW wind generating set was analyzed. Effects of different wind loads and structural parameters on the tower structural strength were investigated through finite element simulation...
Aimed at structure retrofit of sprocket shaft, combining with the practical working conditions, theoretical calculation, finite element method (FEM) Analysis and model test are applied in research. The results show, numerical value of traditional mechanical algorithm is relative small, FEM can express the influence of actual structure, and results are more reliable. FEM Analysis represents stress...
To solve the rubber tearing problem at the rubber-metal interface of some vehicle engine rubber mount, the mount's finite element (FE) model was built. The simulation was carried out by ABAQUS. Material constants were gained from stress-strain test data. CATIA and Hypermesh were also applied during modeling process. The simulation results were consistent well with the test data on vertical stiffness...
Vehicle axle structural design and optimization is an important part of the vehicle development process. Its strength is directly related to vehicle safe under impact. The design should consider the integrity, achieve the same database of design and analysis of the structural data, The parameters model of ATV's axle is set up based on the seamless integration technique of all the module of Pro/E platform,...
Finite element method is utilized in this article to analyze the muffler suspension parts forepart fatigue damage problem, and an improvement design is presented according to stress distributing map and invalidation property of the connecting parts. The engineering practice indicates that the improvement design could solve the forepart fatigue damage problem very well, and improve the variable stiffness...
Stability against up-sliding along contact plane between arch dam and its foundation had attracted much attention in hydro-engineering world. In this paper, combining the engineering example of Ko??lnbrein arch dam which was 200 m high in Austria, we analyzed the shearing stress in contact plane between dam body and its foundation using 3-D finite element method. The conclusion was that up-sliding...
Solid garbage crusher is one of the most important equipments in garbage coal production line. Faults of solid garbage crusher have great influence on the efficiency of garbage coal production line. To solve the problem, an improving design of solid garbage crusher is presented. The key factors that cause the faults to crusher are confirmed through the stress computation of cutting tools. An improving...
Failure happens when test carried on one kind of coach seat recliner, such as: gears of locking board were broken, plastic deformation takes place on end of fixing base. A finite element model was set up and numerical simulation was carried on under boundary conditions which are the same with experiment. Results show that the maximum stress occurred at the dedendum of the first gear of locking board,...
According to the Pro/Mechanica analysis platform, by the finite element analysis method, the actual mold honeycomb molded forces, boundary conditions and imposed load in the view of the molded honeycomb mold for the actual operating conditions leading to die due to stress concentration fatigue failure, the reliability of the problem of insufficient. Through the analysis to determine the maximum stress...
In variable speed drives mechanical and thermal phenomena interfere with electromagnetic ones. When it comes to permanent magnets (PM) machines, beside the common problems related to the stator winding insulation damage at high levels of current densities, some supplementary issues are revealed at the rotor core: mechanical stress due to centrifugal forces while high speed is attempted or the irreversible...
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