scholarly journals Thermal simulation model of aero-engine blade material forging simulation

2021 ◽  
Vol 25 (4 Part B) ◽  
pp. 3169-3177
Author(s):  
Huaren Dai ◽  
Zhe Chen ◽  
Wei Guo ◽  
Ju Wang
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Strain Field ◽  
Structure Evolution ◽  
Process Plan ◽  
Forging Process ◽  
Aero Engine ◽  
Engine Blade ◽  
Finite Element Numerical Simulation ◽  
Forging Load

During the high temperature forging process, the thermal parameters such as the temperature field and strain field in the blank have an important influence on the crack damage and micro-structure in the forging. We use the rigid viscoelastic finite element method to carry out the forging process of a heavy aero-engine blade the finite element numerical simulation was carried out to obtain the temperature field, strain field and forging load change law in the forging process with time, and on this basis, combined with the crack damage and repair mechanism and the re?crystallization structure evolution law, an optimization was proposed. The forging process plan. That is, the pre-forging is performed on the basis of the tolerance of the final forging dimension under pressure of 4 mm, the pre-forging temperature is 1160?C, and the final forging temperature is 1120?C. The actual forging process test verifies the feasibility of the process plan, which is the engineering of this process the application lays the scientific foundation.

Contrastive Analysis on Thermal Deformation of Thrust Bearing Pad with Two Kind of Supporting

2014 ◽  
Vol 494-495 ◽  
pp. 554-557
Author(s):  
Yong Hai Li ◽  
Shi Bo Liu ◽  
Rong Kui Yao ◽  
Jian Wang ◽  
Ning Yang ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Temperature Field ◽  
Thermal Deformation ◽  
Thrust Bearing ◽  
Deformation Field ◽  
Contrastive Analysis ◽  
Tilting Pad ◽  
Finite Element Numerical Simulation ◽  
Point Line

In order to solve thermal deformation, the finite element numerical simulation of two kind of tilting pad thrust bearing is made for the same pad surface, and thermal deformation is made to analyze comparatively. The results show that the temperature field, the deformation field and the values of pad are similar for two different supported thrust bearing (point, line support) under the same operating condition. The pad temperature and deformation will increase with the increasing of pv values. According to the calculation conditions, the temperature field rose about 1°C, and the thermal deflection increased 0.002mm with pv value increased by 10%.

scholarly journals The Strength Analysis of CFM56 Engine Blade

2018 ◽  
Vol 166 ◽  
pp. 04001 ◽  
Author(s):  
Zhenzhen Liu ◽  
Zhixiong Chen ◽  
Jin Chen
Keyword(s):  
Finite Element ◽  
Mechanical Load ◽  
Reference Value ◽  
Element Model ◽  
Strength Analysis ◽  
Aerodynamic Load ◽  
Aero Engine ◽  
Engine Blade ◽  
Main Components ◽  
The Finite Element Model

Aero engine is a kind of thermodynamic machinery, which require have strict aerodynamic load, mechanical load and strong durability, its longevity depends largely on the life of its main components. In this paper, a series of studies are carried out on the strength of fan blades of CFM56 engine, which provide a reference value for improving the reliability of the engine. The finite element model of the engine fan is established by using CATIA’s finite element software.The centrifugal stress distribution of the fan at different speeds and the influence of torque on fans under different speeds are calculated respectively, and the static strength of the fan is checked.

The Temperature Field Finite Element Analysis of Concrete Beam after Fire Based on ABAQUS

2011 ◽  
Vol 90-93 ◽  
pp. 3089-3092
Author(s):  
Wen Sheng Li ◽  
Xiao Wu Deng
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Concrete Beam ◽  
Element Analysis ◽  
Time Curve ◽  
Finite Element Numerical Simulation ◽  
Site Test ◽  
Reinforcement Design ◽  
Temperature Time ◽  
Concrete Component

Based on ABAQUS software platform, the author analyzed the concrete beam’s temperature field by the finite element numerical simulation technology,and got the temperature field and the measuring temperature-time curve for the beam of different sections.The calculated results made a perfect coincide with on-site test ,which proved that ABAQUS simulated temperature field of concrete component has certain precision .Thus, the results provided the references for those who want to do more in-depth studies of the concrete beam’s mechanical properties after fire and reinforcement design.

Numerical Simulation Analysis of H-Beam Steel Controlled Cooling

2013 ◽  
Vol 395-396 ◽  
pp. 1184-1189 ◽  
Author(s):  
Xiao Guang Yu ◽  
Xu Hao ◽  
Rui Miao
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
Strain Field ◽  
Simulation Analysis ◽  
Element Model ◽  
Controlled Cooling ◽  
Stress Strain ◽  
Element Analysis ◽  
Beam Cooling ◽  
H Beam

The finite element analysis software soft ANSYS is used for researching H-beam hot rolling finite element model, temperature field and stress strain field. Then find the changes law in different water cooling conditions of the temperature field temperature distribution and the stress strain field. Find the heat coefficient of H-beam by using the optimization analysis to reduce the differences of the temperature and the stress strain value, and also reduce the deformation in H-beam cooling process. The controlled cooling parameters of H-beam under optimal conditions are determined by the simulation experiment and comparative analysis. While exploring the changes of H-beam microstructure, stress and hardness can provide the reference for the making and designing of reasonable controlled cooling technology.

Finite Element Analysis of the Temperature Field and Strain Field of Coating Rod in Friction Surfacing

2010 ◽  
Vol 97-101 ◽  
pp. 1433-1437
Author(s):  
Xue Mei Liu ◽  
Zeng Da Zou ◽  
Xin Hong Wang ◽  
Shi Yao Qu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Temperature Field ◽  
Strain Field ◽  
Radial Direction ◽  
Effective Strain ◽  
The Finite Element Method ◽  
Element Analysis ◽  
Friction Surfacing ◽  
Simulation Results

In friction surfacing process, the temperature field and strain field, especially of coating rod, is considered an important element in analyzing the process’ mechanism and choosing the key process parameters properly. In this paper, the finite element method was employed to simulate the coupling of 3-D temperature field and deformation field of coating rod during friction surfacing. The simulation results show that at the preliminary preheating period, the isotherm goes down at the center part, and the temperature field presents “M” along the radial direction. The temperature increasing rate at the friction interface is higher at first, and then become lower, once the friction system becomes quasi-steady, the temperature here will be stable approximately. The largest effective strain occurs near the center of bottom circle. The simulation results are close to the experimental results, thus builds a basis for analyzing the process’s mechanism, allows for theoretical guidance for analyzing feasibility and helps optimize key parameters.

Analysis of Numerical Simulation and Engineering Examples of Drawing-Bulging Forming Parts

2012 ◽  
Vol 246-247 ◽  
pp. 365-369
Author(s):  
Kang Chen ◽  
Cheng Yun Peng ◽  
Hui Liu
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Convex Hull ◽  
Deep Drawing ◽  
Material Flow ◽  
Theoretical Calculations ◽  
Case Material ◽  
Forming Process ◽  
Process Plan ◽  
Finite Element Numerical Simulation

Drawing-bulging forming is a forming method both deep drawing forming and bulge forming, it has been studied in a centrifuge cover for instance. The forming processes of the centrifuge cover have been analyzed, and the convex hull forming of the forming processes is a typical drawing-bulging forming. The convex hull forming has been analyzed by the theoretical calculations and finite element numerical simulation. The results shows that the convex hull forming should be earlier than the box-shaped forming, in this case, material flow is more conducive to control. In order to avoid the rupture in the forming process of the convex hull, the convex hull forming can be divided into two steps to complete, it can reduce inward deformation resistance of the external metal, and increase the composition of the deep drawing in the drawing-bulging forming, and ease the thinning of the convex hull of the corresponding location. Finally, the reasonable process plan of the workpiece was determined.

The Finite Element Numerical Simulation of the Temperature Distribution of the Glass that under the Irradiation of Laser

2013 ◽  
Vol 791-793 ◽  
pp. 411-414
Author(s):  
Tuan Jie Liu ◽  
Ning Shan ◽  
Yong Zhong Ma
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Temperature Field ◽  
Temperature Distribution ◽  
Interaction Mechanism ◽  
The Finite Element Method ◽  
Co Laser ◽  
Action Time ◽  
Finite Element Numerical Simulation

The temperature field is an important aspect to study the interaction mechanism between the laser and glass. The temperature distribution on the surface of the glass that illuminated by the CO laser is numerical simulated by using the finite element method. The change of the temperature field of the target, irradiated by the laser in different time or different power, is simulated respectively, get the curve of the temperature field which reflects the temperature at the center spot changing with the action time and power.

scholarly journals Shape Sensing of a Complex Aeronautical Structure with Inverse Finite Element Method

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1388
Author(s):  
Daniele Oboe ◽  
Luca Colombo ◽  
Claudio Sbarufatti ◽  
Marco Giglio
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Boundary Conditions ◽  
Strain Field ◽  
Element Analysis ◽  
Inverse Finite Element Method ◽  
Shape Sensing ◽  
Definition Of ◽  
High Level ◽  
Element Method

The inverse Finite Element Method (iFEM) is receiving more attention for shape sensing due to its independence from the material properties and the external load. However, a proper definition of the model geometry with its boundary conditions is required, together with the acquisition of the structure’s strain field with optimized sensor networks. The iFEM model definition is not trivial in the case of complex structures, in particular, if sensors are not applied on the whole structure allowing just a partial definition of the input strain field. To overcome this issue, this research proposes a simplified iFEM model in which the geometrical complexity is reduced and boundary conditions are tuned with the superimposition of the effects to behave as the real structure. The procedure is assessed for a complex aeronautical structure, where the reference displacement field is first computed in a numerical framework with input strains coming from a direct finite element analysis, confirming the effectiveness of the iFEM based on a simplified geometry. Finally, the model is fed with experimentally acquired strain measurements and the performance of the method is assessed in presence of a high level of uncertainty.

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