Research on the reliability verification and key parameter optimization of numerical simulation of a gas explosion

2020 ◽  
pp. 1-17
Author(s):  
Jiajia Liu ◽  
Shouqi Chen ◽  
Ming Yang ◽  
Jianmin Hu ◽  
Yingxiang Fang
Keyword(s):  
Numerical Simulation ◽  
Parameter Optimization ◽  
Gas Explosion ◽  
Reliability Verification ◽  
Key Parameter

Numerical Simulation on the Effect of Compound Roof Separation Position on Bolting Performance

2014 ◽  
Vol 953-954 ◽  
pp. 1638-1642
Author(s):  
Ai Qing Liu ◽  
Jian Zhang ◽  
Peng Cheng ◽  
Yu Hai Zhang
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Surrounding Rock ◽  
Cohesive Force ◽  
Roof Strata ◽  
Poor Stability ◽  
Key Parameter

Prestress is a key parameter in bolting, while the cohesive force of layers in the compound roof strata is low and prone to separation, causing the prestress proliferation very poor. With the method of numerical simulation analysis,the location of separation in compound roof to affect the performance of bolting support was researched. It is concluded the roof separation in the edge of anchorage zone, the prestress field superpose, but is away from the deep surrounding rock and shows poor stability,however the role of cable can make up for the defect of rockbolts support. It has been found the highly prestressed strength bolting system adapts to the compound roof.

Numerical Simulation and Parameter Optimization on Forming Process of Automobile Torque Box

2014 ◽  
Vol 722 ◽  
pp. 140-146
Author(s):  
Wen Juan Zhang ◽  
Long Wu ◽  
Gang Chen
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Parameter Optimization ◽  
Process Parameters ◽  
Fem Simulation ◽  
Simulation Software ◽  
Drawing Process ◽  
Forming Process ◽  
Element Simulation

In this paper the drawing process of Box-torque was simulated by Dynaform, which is FEM simulation software. The process parameters, which affected the quality of forming, were optimized by finite element simulation. The emphasis was focus on the optimization of draw-bead and BHF and data were summarized from the optimization graphs. In this simulation, lengthways draw-bead was set on the technical face for reducing or eliminating wrinkle. It was innovation difference from the usual that the draw-bead was set on binder. Finally the correctness of simulation was approved by comparing the optimization of simulation with the data of experimentation.

Numerical Simulation and Parameter Optimization of Cam’s Fine Blanking Process

2011 ◽  
Vol 396-398 ◽  
pp. 134-139
Author(s):  
An Long ◽  
Rui Ge ◽  
Yi Sheng Zhang ◽  
Li Bo Pan
Keyword(s):  
Numerical Simulation ◽  
Simulation Model ◽  
Parameter Optimization ◽  
Processing Parameters ◽  
Forming Process ◽  
Fine Blanking ◽  
3D Software ◽  
Blanking Process ◽  
Deform 3D

To conclude the mechanics of fine blanking, the numerical simulation model of a cam’s fine blanking process was established, the forming process was simulated by DEFORM-3D software, the deform principle was summarized. Then the effect of three key processing parameters such as gap between punch and die, pressure-pad-force/counter force, serrated ring postion to fine blanking quality were researched, optimized parameters in fine blanking were gained.

scholarly journals Numerical simulation and parameter optimization of automobile reinforced inner plate forming process

2017 ◽  
Author(s):  
Yanhong Su ◽  
Yaxin Ma ◽  
Zhengxing Men ◽  
Yue Tang ◽  
Menghan Wang
Keyword(s):  
Numerical Simulation ◽  
Parameter Optimization ◽  
Forming Process

Study on Numerical Simulation of Gas Explosion inside Compression Compartment of Gas Filling Station

2014 ◽  
Vol 962-965 ◽  
pp. 531-538 ◽  
Author(s):  
Yu Wang ◽  
Yun Yi Wu
Keyword(s):  
Numerical Simulation ◽  
Influence Factors ◽  
Unit Weight ◽  
Point Location ◽  
Gas Explosion ◽  
Ignition Point ◽  
Explosion Pressure ◽  
Propagation Behavior ◽  
Filling Station ◽  
Open Pressure

For the compression compartment safety design in gas filling station, hazards of gas explosion inside compression compartment should be assessed, and explosion energy as well as influence factors should be determined. In this paper, numerical simulation was adopted to build 3D model of compression compartment and simulate gas explosion pressure and flame propagation behavior under different ignition point location, open-pressure and weight of relief panels. The results show that the ignition point location relative to the location of the vent opening and relief panel’s characteristics is very important for gas explosion inside compression compartment. The nearer the ignition point location is away from the venting opening location, the smaller the caused explosion pressure will be. For the relief panel, explosion pressure is proportional with the open-pressure and the weight of relief panel. Besides the rational distribution of ignition source and the adoption of relief panel with less unit weight and relief pressure, the crushing material damage and secondary hazard of flame should also be noticed in order to mitigate the hazard of gas explosion.

Sign in / Sign up

Export Citation Format

Share Document