scholarly journals Study on the Temperature Field of Casting Process in ANSYS

2011 ◽  
Vol 2-3 ◽  
pp. 856-860
Author(s):  
Chang Li ◽  
Guang Bing Zhao ◽  
Shu Yu Zhang ◽  
Xing Han
Keyword(s):  
Temperature Field ◽  
Casting Process ◽  
Interface Temperature ◽  
Field Change ◽  
Ansys Software ◽  
Heat Process ◽  
Manufacture Process ◽  
Composite Interface ◽  
Non Linear ◽  
Changing Process

Cast molding is the main manufacture process in foundry, because the most disfigurements occurs in this step, while the foundry itself is a complex non-linear instantaneous transferring heat process, in which it should take the absorbing and releasing potential heat into account. In this paper, it simulates the temperature field changing process of the cast solidification in ANSYS software, gets the temperature field change rule for a typical cast, and analyzed the effect of different foundry technics parameters on composite interface temperature, which will provide numerical bases for optimizing foundry technics parameters in future.

Study on the Large Fire Tests Temperature Spread Properties of External Thermal Insulation System

2011 ◽  
Vol 243-249 ◽  
pp. 6976-6983
Author(s):  
Zhi Rong Niu ◽  
Zhen Li Huang
Keyword(s):  
Temperature Field ◽  
Research Method ◽  
Fire Prevention ◽  
Fire Tests ◽  
Large Fire ◽  
Fire Performance ◽  
Field Change ◽  
Insulation System ◽  
System Temperature ◽  
Two Sides

The current domestic exterior insulation system fire incidents are frequent. The study of exterior insulation system fire performance gets more and more relevant national authorities and insiders' attention. Based on two sides wall exterior insulation system as the research object, fire prevention experimental research method of insulation system and the insulation system temperature spread rule are expounded. Reveals the insulation system burning speed and scope of the fire from spreading under the action of the fire. The temperature and temperature field change regularity and insulation system of damaged situation after combustion are compared, and structural measures to improve the insulation system fire performance role is drawn.

Non-linear dynamics of size-dependent Euler–Bernoulli beams with topologically optimized microstructure and subjected to temperature field

2018 ◽  
Vol 104 ◽  
pp. 75-86 ◽  
Author(s):  
A.V. Krysko ◽  
J. Awrejcewicz ◽  
S.P. Pavlov ◽  
K.S. Bodyagina ◽  
M.V. Zhigalov ◽  
...  
Keyword(s):  
Temperature Field ◽  
Linear Dynamics ◽  
Size Dependent ◽  
Non Linear

Exploration of activation energy and binary chemical reaction effects on nano Casson fluid flow with thermal and exponential space-based heat source

2019 ◽  
Vol 15 (1) ◽  
pp. 227-245 ◽  
Author(s):  
Gireesha B.J. ◽  
M. Archana ◽  
B. Mahanthesh ◽  
Prasannakumara B.C.
Keyword(s):  
Activation Energy ◽  
Heat Source ◽  
Chemical Reaction ◽  
Radiative Heat ◽  
Physical Parameters ◽  
Content Type ◽  
Heat Process ◽  
Flow Past ◽  
Non Linear ◽  
Exponential Space

PurposeThe purpose of this paper is to explore the effects of binary chemical reaction and activation energy on nano Casson liquid flow past a stretched plate with non-linear radiative heat, and also, the effect of a novel exponential space-dependent heat source (ESHS) aspect along with thermal-dependent heat source (THS) effect in the analysis of heat transfer in nanofluid. Comparative analysis is carried out between the flows with linear radiative heat process and non-linear radiative heat process.Design/methodology/approachA similarity transformation technique is utilised to access the ODEs from the governed PDEs. The manipulation of subsequent non-linear equations is carried out by a well-known numerical approach called Runge–Kutta–Fehlberg scheme. Obtained solutions are briefly discussed with the help of graphical and tabular illustrations.FindingsThe effects of various physical parameters on temperature, nanoparticles volume fraction and velocity fields within the boundary layer are discussed for two different flow situations, namely, flow with linear radiative heat and flow with non-linear radiative heat. It is found that an irregular heat source/sink (ESHS and THS) and non-linear solar radiation play a vital role in the enhancement of the temperature distributions.Originality/valueThe problem is relatively original to study the effects of activation energy and binary chemical reaction along with a novel exponential space-based heat source on laminar boundary flow past a stretched plate in the presence of non-linear Rosseland radiative heat.

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.

scholarly journals Research on Temperature Field Change Trend of the Sintering Process for Lithium-ion Battery Cathode Materials

2018 ◽  
Vol 51 (21) ◽  
pp. 307-312
Author(s):  
Ning Chen ◽  
Binyan Li ◽  
Weihua Gui ◽  
Shujian Xu ◽  
Jiexi Wang ◽  
...  
Keyword(s):  
Temperature Field ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Sintering Process ◽  
Field Change ◽  
Change Trend

Evaluation of the Transient Temperature Distribution of End-Face Sliding Friction Pair Using Infrared Thermometry

2014 ◽  
Vol 613 ◽  
pp. 213-218
Author(s):  
Wei Wei ◽  
Jian Wei Yu ◽  
Tao You ◽  
Xiao Fen Yu ◽  
Yong Hong Wang
Keyword(s):  
Temperature Field ◽  
Temperature Distribution ◽  
Measurement System ◽  
Sliding Friction ◽  
Friction Pair ◽  
Dynamic Performance ◽  
Constant Load ◽  
Interface Temperature ◽  
Transient Temperature ◽  
Ir Thermography

A real-time temperature measurement system was designed for end-face sliding friction pairs with an infrared (IR) probe and IR thermography installed on it. The approximate temperature of contact surface was measured by the probe while non-contact surface’s temperature distribution was determined with the IR thermography. Two experiments with constant load but varied rotational speeds were carried out, and a preliminary study was made to analyze the variation of temperature in the friction process. Furthermore, the probe data was used as thermal load to calculate the temperature field by the FEM model and the result was verified using IR images. The experimental results showed that the infrared measurement system can detect and record the interface-temperature variation accurately. The probe data showed a good dynamic performance with the variation of friction coefficient. In addition, the calculated temperature field showed good accordance with the IR thermography data.

Optimal Design of Sensitive Structure in Gas Pendulum Tilt Sensor

2014 ◽  
Vol 716-717 ◽  
pp. 1051-1054
Author(s):  
Yong Hong Zheng ◽  
Shi Liu Peng ◽  
Hong Wei Wang
Keyword(s):  
Temperature Field ◽  
Optimal Design ◽  
Heat Source ◽  
Horizontal Distance ◽  
Ansys Software ◽  
Simulated Temperature ◽  
Sensitive Factor ◽  
Tilt Sensor ◽  
Sensitive Structure

Optimal design of sensitive structure in gas pendulum tilt sensor was discussed. Using ANSYS software, fluid fields produced by heat source of the sensor in center were simulated. According simulated temperature field which is the key sensitive factor of the tilt sensor, optimal design of sensitive structure was discussed further. The results show that sensitivity of sensor is better when the distance between sensor wire and heat source is 0.2 R or 0.3R (R is radius of chamber). In respect to vertical place, experiment and theory show sensor has better sensitivity and linearity when installing angle is 60 ̊ while the horizontal distance between sensor wire and heat source is 0.3R.

Secondary Development of ANSYS Software to Calculating Sunshine Temperature Stress of Hollow Pier

2011 ◽  
Vol 255-260 ◽  
pp. 1906-1909
Author(s):  
Jun Ying Ge
Keyword(s):  
Temperature Field ◽  
Temperature Gradient ◽  
Temperature Stress ◽  
Sun Exposure ◽  
Bridge Piers ◽  
Secondary Development ◽  
Ansys Software ◽  
Box Girders ◽  
Single Side ◽  
Temperature Load

For hollow but high bridge piers, single side sun exposure causes great temperature stress. Currently, the bridge specifications of each countries have different regulations on hollow pier’s temperature load, partly can only reference to the temperature gradient curve of box girders, but the errors might be large sometimes. This paper gives a method to calculate the hollow pier’s temperature field and stress that caused by solar radiation, a method which can consider any region, any season and any time. A secondary development is also applied to reinforce ANSYS software, and the aforementioned functions is embedded in the ANSYS GUI.

Study on Composite Interface of 4045/3003 by Cladding Casting

2015 ◽  
Vol 817 ◽  
pp. 3-7
Author(s):  
Xing Han ◽  
Bo Shao ◽  
Hai Tao Zhang ◽  
Ke Qin ◽  
Jian Zhong Cui
Keyword(s):  
Aluminum Alloy ◽  
Aluminum Alloys ◽  
Continuous Casting ◽  
Casting Process ◽  
Direct Chill ◽  
Core Material ◽  
Technological Parameters ◽  
Metallurgical Bonding ◽  
Composite Interface ◽  
Si Content

With the cladding casting equipment, which was self-designed and self-made, 4045/3003 composite ingot, which is in size of Φ140mm/Φ110mm, has been manufactured by direct cooling continuous casting by adjusting and optimizing the technological parameters. The process was investigated involving macro-morphology and microstructure near the interface between the two different aluminum alloys at different positions, and distributions of both components and hardness of the cladding ingot. In addition, the tensile strengths were tested. The results showed that metallurgical bonding of two different aluminum alloys could be obtained by direct-chill semi-continuous casting process. The diffusion layer, which is about 15μm on average, has formed on the two sides of composite interface during casting process. From the side of 4045 aluminum alloy to the side of 3003 aluminum alloy, the Si content has a trend to decrease, as well as the hardness, while the Mn content has a trend to increase gradually. Tensile strength of the coated ingot reaches 117.3MPa, which is higher than the core-material matrix (3003 aluminum alloy), indicating the bonding of the two alloys belongs to metallurgical bonding.

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