Experimental Research on the Temperature Field of High and Hollow-Thin Pier

2012 ◽  
Vol 256-259 ◽  
pp. 714-718
Author(s):  
Jian Cheng Sun ◽  
Zhong Le Zhang ◽  
Qing Yi Xiao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Tensile Stress ◽  
Experimental Research ◽  
Temperature Difference ◽  
Hydration Heat ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
And Control

To study the temperature field changing regulation of hydration heat and control concrete cracks caused by great temperature difference in the construction of hollow-thin pier, testing the temperature field of the high and hollow-thin pier of Cha Jiugou Bridge and it got changing regulation of the temperature. The finite element analysis on the pier was also carried out and the temperature stress contours and curves of the hydration heat of the concrete are obtained. It can be seen that the outer surface and the center of the pier are compressive within 10 hours in the pouring early. With the temperature difference, the center generates the compressive stress, the surface generates tensile stress.

scholarly journals Numerical Simulation on Thermodynamics Performance in the Fireproof Sealing by Finite Element Analysis

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Shuai Gao ◽  
Guoqing Zhu ◽  
Yunji Gao ◽  
Guoqiang Chai ◽  
Jinju Zhou
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Thermal Gradient ◽  
Thermal Flux ◽  
Ansys Software ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Thermodynamic Performance ◽  
Temperature Time

In this paper, the finite element analysis was firstly employed to investigate the thermal analysis on two fireproof sealing models with ANSYS software under HC standard temperature-time condition. The main thermal parameters were analyzed and obtained, including temperature field, thermal flux, and thermal gradient. After comparing the two fireproof sealing models, the major conclusions are summarized as follows: In terms of temperature field, the temperature on the left side of the first model ranges from 60 to 524°C in. In contrast, the highest temperature on the left side of the second model eventually reaches below 151°C. Moreover, the vectors of thermal gradient in the first model are compared with the second model, and the temperature gradient disturbance is more obvious in the second fireproof sealing model, which is better to slow down temperature spreading. The accelerated speed of E1 and G1 is 0.0096°C/s and 0.0619°C/s partly, which are far more than C2 and F2 with values of 0.0028°C/s and 0.0078°C/s, respectively. In a word, the performance of the first fireproof sealing model is inferior to the second fireproof sealing model. The conclusions of the study are meaningful to improve the thermodynamic performance of the fireproof sealing in the converter station.

Study on Thermal Placement Optimization of Embedded MCM

2011 ◽  
Vol 189-193 ◽  
pp. 2269-2273
Author(s):  
Chun Yue Huang ◽  
Tian Ming Li ◽  
Ying Liang ◽  
He Geng Wei
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Field Distribution ◽  
Temperature Difference ◽  
Optimization Algorithm ◽  
Thermal Field ◽  
Maximum Temperature ◽  
Element Analysis ◽  
Placement Optimization

In the thermal design of embedded multi-chip module (MCM), the placement of chips has a significant effect on temperature field distributing, thus influences the reliability of the embedded MCM. The thermal placement optimization of chips in embedded MCM was studied in this paper, the goal of this work is to decrease temperature and achieve uniform thermal field distribution within embedded MCM. By using ANSYS the finite element analysis model of embedded MCM was developed, the temperature field distributing was calculated. Based on genetic algorithms, chips placement optimization algorithm of embedded MCM was proposed and the optimization chips placement of embedded MCM was achieved by corresponding optimization program. To demonstrate the effectiveness of the obtained optimization chips placement, finite element analysis (FEA) was carried out to assess the thermal field distribution of the optimization chips placement in embedded MCM by using ANSYS. The result shows that without chips placement optimizing the maximum temperature and temperature difference in embedded MCM model are 87.963°C and 2.189°C respectively, by using chips placement optimization algorithm the maximum temperature drop than the original 0.583°C and the temperature difference is only 0.694°C . It turns out that the chip placement optimization approach proposed in this work can be effective in providing thermal optimal design of chip placement in embedded MCM.

Study on the Temperature Field of Jet Plug-in Hot Blast Furnace

2011 ◽  
Vol 338 ◽  
pp. 231-235
Author(s):  
Xue Ping Wang ◽  
Zhen Wei Zhang ◽  
Hong Bo Zhang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Blast Furnace ◽  
Heat Exchange ◽  
Negative Impact ◽  
Structure Design ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Hot Blast

This paper primarily focuses on the analysis on the heat exchange part’s temperature field of the jet plug-in hot blast furnace aiming at obtaining the temperature distribution of the heat exchange part. The authors took advantage of the method of the finite element analysis to study the temperature field. Through the analysis, local high temperature of the heat exchange part can be figured out. The paper also analyzes the parts with great temperature difference, study the reasons of causing these phenomenon and the negative impact on the furnace. The conclusion of this paper provides the basis for the further enhancement of the machine life and optimization of the structure design.

Study on Fiber Laser Assisted Truing and Dressing of Diamond Wheel In-Process

2008 ◽  
Vol 53-54 ◽  
pp. 255-258 ◽  
Author(s):  
Yan Wang ◽  
Shi Ming Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Fiber Laser ◽  
Diamond Wheel ◽  
Dressing Method ◽  
Element Analysis ◽  
Field Simulation ◽  
The Finite Element Analysis ◽  
Series Of Experiments

A novel truing and dressing method, namely fiber laser assisted truing and dressing diamond wheel, is proposed to overcome the shortcomings associated with conventional mechanical dressing methods, ELID and ECD methods. A series of experiments have been conducted to prove that it achieves both high truing efficiency and good dressing quality. The finite element analysis of temperature distribution in fiber laser assisted truing and dressing diamond wheel using ANSYS is performed by author. Temperature field simulation helps to select optimized parameters under certain conditions.

scholarly journals Experimental Research on Zirconia Resistance to Occlusal Stresses

2019 ◽  
Vol 70 (1) ◽  
pp. 74-77
Author(s):  
Raluca Monica Comaneanu ◽  
Loredana Elena Bordea ◽  
Viviyana Paraschiv ◽  
Oana Botoaca ◽  
Farah Bechir ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Mechanical Strength ◽  
Experimental Research ◽  
Compressive Force ◽  
Element Analysis ◽  
High Mechanical Strength ◽  
The Finite Element Analysis ◽  
Design Deficiencies

FEM studies were made on a zirconia dental bridge of 4 elements with supports on 2.4 and 2.7, and edentation on 2.5 and 2.6. Appling a compressive force of 350N on Z direction, quite normal for mastication, was analyzed the behavior of the dental bridge. Zirconia, although having a high mechanical strength, is fragile when rotation or bending movements occur. The analysis reveals some bridge deficiencies, which may be due either to inaccuracies in the prosthetic abutment construction (especially in relation to their inclination), to the technique of realization or to insufficient dental support. In our study, the most vulnerable elements are the crowns on teeth 2.4 and 2.7. Finite element analysis, highlighting possible structural and design deficiencies, may be a solution to improve dental bridges. The only disadvantage of the finite element analysis that was performed before the actual restoration is related to the fact that performing the simulations involves a time-consuming phase.

Iron Temperature Field Finite Element Analysis and Measurement Verification

2015 ◽  
Vol 1095 ◽  
pp. 447-451
Author(s):  
Hua Sun
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Temperature Field ◽  
Experimental Measurement ◽  
Analysis Data ◽  
Sample Temperature ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Measurement Verification

We often need to be in a work of finite element analysis of temperature field, but for the results of the analysis data, we seldom verified. This article through to the sample temperature field finite element analysis, then experimental measurement, verifies the correctness of the finite element analysis.

Experimental Modal Analysis and Modal Reproduce Experiment Research of a Chladini Plate

2012 ◽  
Vol 152-154 ◽  
pp. 1401-1405
Author(s):  
Xun Ma ◽  
Ji Wei Zhang ◽  
Shi Ming Yan
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Modal Analysis ◽  
Experimental Research ◽  
Experimental Modal Analysis ◽  
Acoustic Excitation ◽  
Experiment Research ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Ansys Workbench

By means of ANSYS Workbench, different materials, dimensions and shapes of the Chladni plates are simulated. The natural frequency and Modal are obtained so that the chladni plate is determined and manufactured, that is used in the experimental research. Then, modal analysis test is conducted by Experimental modal analysis, the resonance and modal characteristics of the plate between 1Hz to 1000Hz are identified. Finally, Modal reproduce experiment is conducted under the acoustic excitation. Experimental and analytical results show that the finite element analysis, experimental modal analysis and Modal reproduce experiment basically have the same results.

Finite Element Analysis of Spontaneous Burst of PV Modules during Encapsulation

2014 ◽  
Vol 945-949 ◽  
pp. 48-52
Author(s):  
Yan Zuo ◽  
Zhi Zhang ◽  
Tao Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Experimental Research ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Pv Modules ◽  
Lamination Process

In this paper, the experimental research and the finite element analysis are carried out to investigate the spontaneous burst phenomenon of the tempered glasses in the lamination process of the PV modules. The simulation and the relevant analysis demonstrate that the spontaneous burst of the tempered glasses of the PV modules in the lamination process is closely associated with the toughening quality and the camber or bending of the glass. It is revealed by the simulation and experiments that the application of the unqualified toughened and camber or bending glasses is one of the main reasons of the spontaneous burst phenomenon in the lamination process of the PV modules.

scholarly journals Design and Experimental Research on Sealing Structure for a Retrievable Packer

2020 ◽  
Vol 2020 ◽  
pp. 1-15
Author(s):  
Yang Liu ◽  
Zhanghua Lian ◽  
Junwen Chen ◽  
Shengping Kuang ◽  
Yisheng Mou ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Experimental Study ◽  
Finite Element ◽  
Theoretical Calculation ◽  
Large Deformation ◽  
Experimental Research ◽  
Element Analysis ◽  
Sealing Performance ◽  
The Finite Element Analysis

In order to reduce the failure accidents of conventional packers, a kind of sealing structure of retrievable packers is designed, which can provide reference for optimizing the sealing performance and pressure capacity of packers. And theoretical calculation and experimental research on their sealing performance and pressure capacity are carried out through the finite element analysis on the contact with large deformation based on Abaqus and experimental study. The results show that the upper packer is subjected to greater stress and mainly plays a sealing role in the sealing process. In order to improve the sealing performance of the packer, the height of the upper and lower packer should be preferentially selected about 60 mm, the height of the middle rubber cylinders should be about 50 mm, and the thickness of the packer should be about 21 mm. The newly designed rubber cylinders can meet 150°C. The newly designed rubber cylinders can meet the sealing function and pressure bearing function under the condition of 10,000 Psi and 150°C. The newly designed rubber cylinder can satisfy the function of sealing and pressure-bearing under 140°C and 10,000 Psi. The whole experiment shows that the capacity of bearing pressure and sealing is stable, which can better meet the requirements of field use.

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