The Numerical Simulation Analysis of Tuyere's Temperature Field and Stress Field

2013 ◽  
Vol 706-708 ◽  
pp. 1701-1704 ◽  
Author(s):  
Xi Ping Guo ◽  
Wen Yue Han
Keyword(s):  
Numerical Simulation ◽  
Numerical Modeling ◽  
Temperature Field ◽  
Stress Field ◽  
Simulation Analysis

Research on the temperature field and stress field of tuyere by numerical modeling and analyse the influence of structure on tuyere's property.

Numerical Simulation on Real-Time Temperature Field and Strength Field of Bridge Mass Concrete

2011 ◽  
Vol 99-100 ◽  
pp. 346-349
Author(s):  
Chun Mei Zhu ◽  
You Zhi Wang ◽  
Bin Yan ◽  
Hong Wei Gao
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Stress Field ◽  
Real Time ◽  
Simulation Analysis ◽  
Mass Concrete ◽  
Construction Scheme ◽  
Control Schemes ◽  
Concrete Temperature ◽  
Instantaneous Temperature

Access to the internal concrete temperature of the instantaneous temperature field and the strength of the field Real-time monitoring , Concrete temperature field and stress field of the numerical simulation analysis method was proposed . Intuitive accurate prediction that the temperature field and stress field provide a reliable basis on the distribution of temperature control schemes and the construction scheme formulated.

Experimental and numerical investigation of the thermomechanical load on a turbine housing in a radial turbocharger

2021 ◽  
pp. 095440702110521
Author(s):  
Shaolin Chen ◽  
Hong Zhang ◽  
Liaoping Hu ◽  
Guangqing He ◽  
Fen Lei ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Fatigue Life ◽  
Simulation Analysis ◽  
Simulation Method ◽  
Testing Temperature ◽  
Experimental Results ◽  
Maximum Temperature ◽  
Monitoring Point ◽  
Turbine Housing

The fatigue life of turbine housing is an important index to measure the reliability of a radial turbocharger. The increase in turbine inlet temperatures in the last few years has resulted in a decrease in the fatigue life of turbine housing. A simulation method and experimental verification are required to predict the life of a turbine housing in the early design and development process precisely. The temperature field distribution of the turbine housing is calculated using the steady-state bidirectional coupled conjugate heat transfer method. Next, the temperature field results are considered as the boundary for calculating the turbine housing temperature and thermomechanical strain, and then, the thermomechanical strain of the turbine housing is determined. Infrared and digital image correlations are used to measure the turbine housing surface temperature and total thermomechanical strain. Compared to the numerical solution, the maximum temperature RMS (Root Mean Square) error of the monitoring point in the monitoring area is only 3.5%; the maximum strain RMS error reached 11%. Experimental results of temperature field test and strain measurement test show that the testing temperature and total strain results are approximately equal to the solution of the numerical simulation. Based on the comparison between the numerical calculation and experimental results, the numerical simulation and test results were found to be in good agreement. The experimental and simulation results of this method can be used as the temperature and strain (stress) boundaries for subsequent thermomechanical fatigue (TMF) simulation analysis of the turbine housing.

The Verification of Geometry Control Method for Cable-Stayed Bridge

2014 ◽  
Vol 1065-1069 ◽  
pp. 992-996
Author(s):  
Can Huang ◽  
Yi Zhi Bu ◽  
Qing Hua Zhang
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Energy Method ◽  
Control Method ◽  
Simulation Analysis ◽  
Beam Element ◽  
Integration Process ◽  
Cable Stayed Bridge ◽  
Construction Procedure ◽  
Element Theory

Based on the energy method and beam-element theory, the nonlinear strain are considered, non-stress length and non-stress curvature of element of geometry control method are introducted in the integration process of stain energy. The static equilibrium equation of the geometry control method is established. Take the impacts of structural geometric profile induced by temporary loads and temperature field during the construction procedure are investigated, the correctness of the geometry control method is verified by the numerical simulation analysis.

Numerical Simulation of Tectonic Stress Field in the Southeast of the Qinghai-Tibet Plateau

2013 ◽  
Vol 864-867 ◽  
pp. 2418-2421
Author(s):  
Li Yang ◽  
Jian Lin Li ◽  
Shi Wei Luo
Keyword(s):  
Numerical Simulation ◽  
Stress Field ◽  
Simulation Analysis ◽  
Tectonic Stress ◽  
Geological Structure ◽  
Tibet Plateau ◽  
Tectonic Stress Field ◽  
Structure Model ◽  
Set Up ◽  
Qinghai Tibet Plateau

The tectonic stress field plays an important role in the research of crustal stability, fault activity and the geological disaster effect. On the basis of related geological data, ANSYS and FLAC3D are applied in this paper to set up a reasonable geological structure model and boundary conditions, aiming at making a numerical simulation analysis of tectonic stress field in the southeast of the Qinghai-Tibet plateau. The result and the measured data fit better, which provides a reference for the further study of the project.

Welding Residual Stress's Numerical Simulation and Relieving of Guyed Mast Earplate Joint Substructure

2011 ◽  
Vol 216 ◽  
pp. 218-222 ◽  
Author(s):  
Wen Li Wang ◽  
Wei Lian Qu ◽  
Jie He
Keyword(s):  
Numerical Simulation ◽  
Residual Stress ◽  
Temperature Field ◽  
Stress Field ◽  
Residual Stresses ◽  
Welding Residual Stress ◽  
Welding Stress ◽  
Welding Temperature ◽  
Joint Properties ◽  
Guyed Mast

The dynamic stress-strain and welding residual stress during welding are the significant factors which lead to welded cracking and debasement of the joint properties. Therefore, the welding residual stresses are still very importang problems.A large number of guyed mast accidents study shows that the welded joints of earplate and shaft were easily to be destroyed. Therefore, the accurate assessment of the guyed maste earplate joint substructure’s welding residual stress is of great significance. The theory and method of simulation of the welding temperature field and welding stress field by finite element method is first introduced, and then the earplate substructure refine model is established which was up to the welding numerical simulation. Based on ANSYS software’s APDL language to apply the welding heat source load, we can get and save the welding temperature field results at each time. Conversing the thermal analysis element into structure element to finish the caculation of the welding stress field. Eventually by adopting the elimination remnant technology to remove the part of welding residual stresses, we can got the final welding residual stress in different relieving proportion.

Numerical Simulation Analysis of the Groundwater’ Temperature Field in the Concentration Area of the Water Source Heat Pump Engineering

2012 ◽  
Vol 174-177 ◽  
pp. 3027-3030
Author(s):  
Wei Wei ◽  
Ming Zhong Wang ◽  
Jun Pan
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Temperature Field ◽  
Numerical Model ◽  
Heat Pump ◽  
Simulation Analysis ◽  
Water Source ◽  
Groundwater Temperature ◽  
Change Trend

In order to avoid the heat transfixion among users in the concentration area of the water source heat pump, a suitable layout of pumps for drawing and recharging wells is required. Finite element method is adopted to establish the numerical model of groundwater temperature to predict the change trend of water temperature. The results of the simulation indicate that the groundwater temperature change from 6.3 to 14.2 °C in winter, and from 11.5 to 21.2 °C in summer. These results meet the requirements of the drawing and recharging water in the water source heat pump engineering and are able to avoid the heat transfixion among users. The effect of drawing and recharging water in the water source heat pump engineering to the changes of the groundwater’s temperature field can be analyzed quantitatively through establishing the proper numerical simulation which provides a reference to scientifically design the layout of pumps for drawing and recharging water.

Numerical Simulation Analysis on the Temperature Field in Indirect Selective Laser Sintering of 316L

2013 ◽  
Vol 711 ◽  
pp. 209-213 ◽  
Author(s):  
Nai Fei Ren ◽  
Lei Jia ◽  
Dian Wang
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Temperature Field ◽  
Heat Source ◽  
Simulation Analysis ◽  
Selective Laser Sintering ◽  
Element Model ◽  
Cyclic Loads ◽  
Physical Experiments ◽  
Key Points

Using APDL programming language, an appropriate finite element model is created and the moving cyclic loads of Gauss heat source are realized. From the detailed qualitative analysis of the results, the variety laws of temperature field in indirect SLS are obtained. Plot results at different moments, temperature cyclic curves of key points and the curves of depth of fusion and width of fusion on the set paths, are of important guiding significance for subsequent physical experiments.

Numerical Simulation Analysis on Explosion Stress Field of Different Charge Construction

2011 ◽  
Vol 250-253 ◽  
pp. 2612-2616 ◽  
Author(s):  
Qi Zong ◽  
Lu Ping Yan ◽  
Hai Bo Wang
Keyword(s):  
Numerical Simulation ◽  
Stress Field ◽  
Simulation Analysis ◽  
Blast Hole ◽  
Peak Stress ◽  
Wall Pressure ◽  
Energy Utilization ◽  
Good Energy ◽  
Maximum Water ◽  
Simulation Results

There are different blasting stress field which around the blast hole caused by different charge when explosives exploded in the rock. Simulation analysis on borehole wall pressure and explosion stress field of rock at different charging structure was done by ANSYS/LS-DYNA. The simulation results indicate: stress of coupling charge is the maximum, water-decouple charge is the latter and air-decouple charge is the minimum; and whether air-decouple or water-decouple charge, peak stress value of model decreased along with the increasing of decouple coefficient, but the air-decouple charge show more obvious. Therefore, water-decouple blasting has good energy utilization.

Dynamic Simulation Analysis of Temperature Field and Thermal Stress of Concrete Gravity Dam during Construction Period

2011 ◽  
Vol 90-93 ◽  
pp. 2677-2681 ◽  
Author(s):  
Hai Bo Wang ◽  
Sheng Qiang ◽  
Xiao Sun ◽  
Rui Zheng
Keyword(s):  
Temperature Field ◽  
Thermal Stress ◽  
Stress Field ◽  
Dynamic Simulation ◽  
Temperature Control ◽  
Simulation Analysis ◽  
Water Diversion ◽  
Gravity Dam ◽  
Good Effect ◽  
Concrete Gravity Dam

The basic theory of temperature field and stress field of concrete and 3D FEM combining with cooling pipe discrete model and iteration method are used to carry out the dynamic simulation analysis of the temperature filed and stress field of a concrete gravity dam of South-to-North Water Diversion Project. The impacts on cracking mechanism of the surface insulation, internal cooling and environmental climate are considered in calculation. The change laws of temperature field and thermal stress with time and their distributions are analyzed, reasonable temperature control measures are put forward for reference. The results show that good effect of temperature control and cracking prevention is achieved, the proposed measures should have great reference significance to the similar concrete dam in future.

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