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One-kilometer directional drilling rig is a head-type hydraulic rig, which can drill horizontal deep holes in coalseam with down-hole motor for gas drainage. To avoid the hole axis floating and the rig overturning, a stabilizer is designed for high stable ability in this paper. Stabilizer is subsequently modeled and simulated in four typical conditions where the drilling rod rotates. The result shows...
Discrete element method based soft-sphere model is used to simulate the impact action between the rice particles flow and the impact-board. The characteristic of contact force between them, the relationship between the mass of rice particles and the normal contact force of the impact-board, and an effect of retention stage on the measurement of the mass of rice are studied when belt speed is 0.5 m/s...
The crankshaft is one of the most important components of engine, it endures complex and alternate load and it is the key point and difficulty of the engine design. Dynamic characteristics of crankshaft has been abstractly analyzed its kinematics and dynamics. A model of crank-connecting rod mechanism had been built in the software of Pro/E and ADAMS. To get the minimum force acted on mounting base,...
Apply the finite element software of ANSYS/LS-DYNA to simulate the rolling process of pairs of cross wedge rolling shaft and to analysis the stress field of the rolling at the stage of stretcher and to analysis the distribution of strain field. what's more, it can make a clear analyss of the metal's situation such as the under force and the movement at the process of the rolling deformation, it has...
Dynamic analysis is carried out for recoil parts in recoil and counter-recoil process to find out the fault effects of liquid and gas leakage of recoil brake and recuperator. In order to detect and simulate the fault occurrence and development process, virtual prototyping is firstly adopted into fault simulation and detection fields in this paper. The basic steps of virtual prototyping development...
This paper researches on the lift mechanism of an engineering car, and uses SimMechanics toolbox and Simulink toolbox to establish a mechanic system simulated model and hydraulic system simulated model; uses subsystem encapsulation technology of Simulink to package the modules; then establishes mechanic-hydraulic coupled model of the lift mechanism and realizes dynamic simulating analysis. It also...
To study characteristics of a air propeller-gear reducer propulsion device, a scale virtual prototype of the device was established using ADAMS and Pro/E software based on virtual prototyping and parametric modeling. Kinematics and dynamics characteristics were gained through computer simulation in rated-load and in no-load. The influence of elastic coupling for propeller movement and gear meshing...
In this study the working principle and characteristics of electrical discharge machining was introduced and in order to resolve the kinematic and dynamic research problems. The part simulation method was used by means of ADAMS based on the virtual prototype technique. The data has been changed by using Mechpro. The virtual prototype model was set up. The kinetic and dynamic simulation was conducted...
The way in which the forces are transmitted in the rolling contact between wheels and rails of rolling stocks is complex and highly nonlinear, and understanding of braking mechanism has a crucial role for the safety and efficiency of railroad vehicle operations. This paper proposes a real-time simulation unit, that is, a HILS system, which is able to analyze braking performance of railroad vehicles...
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