Analysis and FEM Simulation of Temperature Field in Wet Surface Grinding

2010 ◽  
Vol 25 (6) ◽  
pp. 399-406 ◽  
Author(s):  
C. Mao ◽  
Z. X. Zhou ◽  
Y. H. Ren ◽  
B. Zhang
Keyword(s):  
Temperature Field ◽  
Fem Simulation ◽  
Surface Grinding ◽  
Wet Surface

Cellular Automata Method for Reconstruction of Complex Groove of Milling Insert

2008 ◽  
Vol 392-394 ◽  
pp. 601-606 ◽  
Author(s):  
Guang Yu Tan ◽  
Guang Jun Liu ◽  
G.H. Li ◽  
H. Song ◽  
Yi Ming Rong
Keyword(s):  
Temperature Field ◽  
Cellular Automata ◽  
Stress Field ◽  
Fem Simulation ◽  
The State ◽  
Entire System ◽  
Local Rule ◽  
Neighboring Cell ◽  
Entire Domain ◽  
Simulation Results

This paper presents a self-organizing method for reconstruction of complex groove of milling insert. The local rule of Cellular Automata is proposed to design and optimize the groove of milling insert. The states of cells are modified according to the local rule applied. The state of the entire system is updated based on the state of the cell and its neighboring cell, and these cells’ states define the state of the entire domain, and the groove can be reconstructed. The reconstructed groove is tested by a FEM simulation. The simulation results show that the reconstructed groove has a satisfied performance on the stress field and temperature field.

FEM simulation of laser forming process of shipbuilding steel plate

2004 ◽  
Vol 120 ◽  
pp. 507-512
Author(s):  
Zhang Liwen ◽  
Zhong Qi ◽  
Pei Jibin ◽  
Zhang Guoliang ◽  
Xia Yuanliang
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Thermal Stresses ◽  
Steel Plate ◽  
Fem Simulation ◽  
Laser Forming ◽  
Transient Temperature ◽  
Forming Process ◽  
Shipbuilding Steel ◽  
Finite Element Software

Laser forming has become a promising technique to form sheet metal in recent years. This new forming process can produce plastic deformation by thermal stresses resulted from the irradiation of laser beam scanning. In this paper, a 3-D thermo-mechanical FEM model was developed to simulate the laser forming process of shipbuilding steel plate. The finite-element software MSC.Marc was used to calculate the temperature field, stress field and strain field during laser forming process. The transient temperature field and the final bending angle were predicted. Then the effect of laser forming process technical parameters was studied. To evaluate the accuracy of the simulation, a laser forming experiment was performed. It is demonstrated that the finite element simulation results are in good agreement with experimental results.

A Statistical Model of Equivalent Grinding Heat Source Based on Random Distributed Grains

2018 ◽  
Vol 140 (5) ◽  
Author(s):  
Zhenguo Nie ◽  
Gang Wang ◽  
Dehao Liu ◽  
Yiming (Kevin) Rong
Keyword(s):  
Temperature Field ◽  
Heat Source ◽  
Statistical Model ◽  
Fem Simulation ◽  
Source Model ◽  
Accurate Information ◽  
Grinding Temperature ◽  
Time Space ◽  
Creep Feed ◽  
Grinding Temperature Field

Accurate information about the evolution of the temperature field is a theoretical prerequisite for investigating grinding burn and optimizing the process parameters of grinding process. This paper proposed a new statistical model of equivalent grinding heat source with consideration of the random distribution of grains. Based on the definition of the Riemann integral, the summation limit of the discrete point heat sources was transformed into the integral of a continuous function. A finite element method (FEM) simulation was conducted to predict the grinding temperature field with the embedded net heat flux equation. The grinding temperature was measured with a specially designed in situ infrared system and was formulated by time–space processing. The reliability and correctness of the statistical heat source model were validated by both experimental temperature–time curves and the maximum grinding temperature, with a relative error of less than 20%. Finally, through the FEM-based inversed calculation, an empirical equation was proposed to describe the heat transfer coefficient (HTC) changes in the grinding contact zone for both conventional grinding and creep feed grinding.

FEM simulation of temperature field in a resistance-heated diamond anvil cell

2021 ◽  
Vol 129 (5) ◽  
pp. 055901
Author(s):  
Xiaobing Fan ◽  
Shikai Xiang ◽  
Haiyan Chen ◽  
Lingcang Cai
Keyword(s):  
Temperature Field ◽  
Diamond Anvil Cell ◽  
Fem Simulation ◽  
Diamond Anvil

Three-Dimensional Dynamic FEM Simulation of Block Temperature Distribution for Fusion Welding Rapid Manufacture Process

2011 ◽  
Vol 228-229 ◽  
pp. 233-236
Author(s):  
Jian Ping Jia ◽  
Shun Ping Yao ◽  
Zheng Qiang Zhu
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Temperature Measurement ◽  
Three Dimensional ◽  
Fem Simulation ◽  
The Body ◽  
Fusion Welding ◽  
Welding Temperature ◽  
Finite Element Software ◽  
The Impact

Due to the establishment of thermal equilibrium is very rare, some cases not possible, so the accuracy of temperature measurement is often difficult to ensure that no one will be allowed or asking for too much more to the transient temperature measurement is difficult. Based on the finite element software ANSYS platform, according to the feature of fusion welding, the impact of heat on the welding and the welding temperature field is simulatd by the Three-Dimensional Dynamic FEM simulation of the ANSYS software. Finite element numerical simulation results with the test weld shape with good consistency, so that the body welding Gauss heat source model is used to simulate the temperature field is reasonable.

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