Structural Optimization Design of the Arc Finger Seal

2013 ◽  
Vol 365-366 ◽  
pp. 1194-1197
Author(s):  
Fang Qi ◽  
Hua Su
Keyword(s):  
Optimization Design ◽  
Structural Parameters ◽  
Geometric Model ◽  
Structure Optimization ◽  
Performance Comparison ◽  
Ansys Software ◽  
Mathematical Relationship ◽  
Relationship Analysis ◽  
Sealing Performance ◽  
Finger Pad

According to the working condition of the finger seal, a geometric model applied to optimization of finger seal with arc curve (arc finger seal) is established based on mathematical relationship analysis of the finger seal structural parameters. Two performances, the hysteresis and contact pressure between finger pad and rotors surface, are put forward as the objectives for the structure optimization of the finger seal. The optimization model of C/C composites arc finger seal is presented and the multi-objective optimization process is carried out based on ANSYS software. An optimization design example is given which shows that comprehensive performance of finger seal can be obviously improved through the structure optimization. The performance comparison between a C/C composites and a metal material arc finger seal with the same structural and working conditions proves that the choice of C/C composites as the finger seal material, to a certain extent, may improve the sealing performance effectively. It provides a new choice for the design of the finger seal.

Hoist Sheave Structure Optimization and Lightweight

2015 ◽  
Vol 741 ◽  
pp. 133-137
Author(s):  
Xian Zhao Jia ◽  
Yong Fei Wang
Keyword(s):  
Working Condition ◽  
Geometric Model ◽  
Structure Optimization ◽  
Element Model ◽  
Stiffened Plate ◽  
Optimal Result ◽  
Ansys Software ◽  
Table Analysis ◽  
3D Geometric Model ◽  
Relational Table

To ensure wheel body of the hoisting sheave strength and stability condition. For the purpose of wheel body lightweighting. There are two schemes to reduce body weight.Reduce the spokes at the same time increase the ring stiffened plate, and reduce the spokes at the same time change the spokes width and thickness.The wheel body was established based on Pro/E 3D geometric model. Import the mesh in the Workbench of ANSYS software for finite element model. Statics analysis to select the optimized scheme. Establish a hoisting sheave wheel body under the actual working condition of widening the width - deformation - wheel weight relational table. Analysis to lightweight at the same time ensure that stiffness of wheel,then it can obtaine the optimal result.

The Structure Optimization Design for the W-Type Metallic Sealing Ring Based on the MOGA Algorithm

2015 ◽  
Vol 727-728 ◽  
pp. 541-545
Author(s):  
Xiang Yu Ding
Keyword(s):  
Mechanical Properties ◽  
Optimal Design ◽  
Optimization Algorithm ◽  
Optimization Design ◽  
Structure Optimization ◽  
Ansys Software ◽  
Sealing Ring ◽  
Structure Optimization Design

This paper uses the ANSYS software to analysis the outer arm opening angel(OAOA) and the outer arm arc angle(OAAA) of W-type metallic sealing ring which can effects on the mechanical properties,obtained in that when the OAOA choose from 1.398°to 14.156 °and the OAAA choose from 30.21° to 59.5 °, the mechanical properties of the sealing ring can satisfy the requirement of use. Then using the MOGA optimization algorithm to optimize the design of W-type metallic sealing ring, and find when the OAOA choose 3.39°and the OAAA choose 32.18°are the optimal design of the W-type metallic sealing ring.

scholarly journals Finite-element analysis and structure optimization of X-O composite seal of cone bit

2020 ◽  
Vol 12 (5) ◽  
pp. 168781402091868
Author(s):  
Shuang Jing ◽  
Anle Mu ◽  
Yi Zhou ◽  
Ling Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Parameters ◽  
Structure Optimization ◽  
Seal Ring ◽  
Test Results ◽  
Element Analysis ◽  
Root Cause ◽  
Sealing Performance ◽  
Distribution Of Stress

The seal is the key part of the cone bit. To reduce the failure probability, a new seal was designed and studied. The sealing performance and structure optimization of the X-O composite seal was analyzed and compared by finite-element analysis. The stress and contact pressure were analyzed to establish the main structural parameters that affect sealing performance and the direction of the structural optimization. By optimizing these structural parameters, including the height, and the radial and axial arc radii, an optimized structure is obtained. The results show that (1) the X-O composite seal can meet the seal requirement, the excessive height of the X seal ring is the root cause of the uneven distribution of stress, pressure, and distortion. (2) A new seal structure is obtained, the distribution of pressure and stress is reasonable and even, and the values of stress and pressure are reduced to avoid distortion and reduce the wear. Finally, the field test results of the X-O composite seal of cone bit showed that the service life of the bit bearing increased by 16% on average and the drilling efficiency increased by 11% on average compared with the original cone bit with the O seal ring.

Analysis of the Flow Field and Structure Optimization in Gas-Liquid-Solid Three-Phase Hydrocyclone

2014 ◽  
Vol 533 ◽  
pp. 17-20
Author(s):  
De Hai Chen ◽  
Ming Hu Jiang ◽  
Li Xin Zhao ◽  
Yong Zhang
Keyword(s):  
Flow Field ◽  
Optimization Design ◽  
Structural Parameters ◽  
Structure Optimization ◽  
Technical Support ◽  
Inverted Cone ◽  
Three Phase ◽  
Outlet Hole ◽  
Simulation Results ◽  
Hole Structure

The flow field of gas-liquid-solid three-phase hydrocyclone was analyzed by using the software FLUNET. We have researched different structural parameters on the effect of degassing and degritting. The result shows that the change of inverted cone length ratio, inverted cone diameter, the form of liquid outlet hole structure and the angle of vent structure have some influence on degassing and degritting. Simulation results provides a good technical support for the optimization design of three-phase hydrocyclone structure.

Springback Distortion Research on Offset Strip Fin Based on ANSYS

2013 ◽  
Vol 712-715 ◽  
pp. 662-665
Author(s):  
Yao Lin Liu ◽  
Shun De Zhang
Keyword(s):  
Optimization Design ◽  
Cutting Tool ◽  
Structural Parameters ◽  
Influencing Factor ◽  
Sheet Thickness ◽  
Structure Optimization ◽  
Forming Process ◽  
Mould Design ◽  
Offset Strip Fin ◽  
Reliable Basis

ANSYS/LSDYNA is applied to simulate the sheet forming process and the springback distortion process. The springback result of sheet and stress, strain in process will be obtained. The influencing factor to the springback includes bank holder force, sheet thickness, velocity of punch, and cutting tool radius in process. The springback law can be used to compensate the mould design. Therefore, the structural parameters of the fin forming machine and the process parameters of relative mould device will be optimized. Then the accuracy of offset strip fin will be improved , it will provide a reliable basis for the Fin structure optimization design.

Dynamics Analysis of the Bar-Type Piezoelectric Motor Stator

2011 ◽  
Vol 117-119 ◽  
pp. 390-393
Author(s):  
Huai Yong Li ◽  
Li Zhong Xu
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Theoretical Basis ◽  
Optimization Design ◽  
Structural Parameters ◽  
Structure Optimization ◽  
Dynamics Analysis ◽  
Ceramic Plate ◽  
Piezoelectric Motor ◽  
The Finite Element Method

In this paper, the modal and the harmony response analyses of the stator of the bar-type piezoelectric motor are done by using the finite element method. The influences of the motor’s structural parameters and the voltage applied to ceramic plate on the characteristics of the stator are discussed. Some useful results are given. This provides theoretical basis for the structure optimization design of the motor.

Optimal design of a high homogeneous and small-size shim coil for atomic spin gyroscope based on 0-1 linear programming

2020 ◽  
Vol 64 (1-4) ◽  
pp. 165-172
Author(s):  
Dongge Deng ◽  
Mingzhi Zhu ◽  
Qiang Shu ◽  
Baoxu Wang ◽  
Fei Yang
Keyword(s):  
Linear Programming ◽  
Power Consumption ◽  
Low Power ◽  
Optimization Design ◽  
Structural Parameters ◽  
Axial Position ◽  
Low Power Consumption ◽  
Optimal Method ◽  
Atomic Spin ◽  
Shim Coil

It is necessary to develop a high homogeneous, low power consumption, high frequency and small-size shim coil for high precision and low-cost atomic spin gyroscope (ASG). To provide the shim coil, a multi-objective optimization design method is proposed. All structural parameters including the wire diameter are optimized. In addition to the homogeneity, the size of optimized coil, especially the axial position and winding number, is restricted to develop the small-size shim coil with low power consumption. The 0-1 linear programming is adopted in the optimal model to conveniently describe winding distributions. The branch and bound algorithm is used to solve this model. Theoretical optimization results show that the homogeneity of the optimized shim coil is several orders of magnitudes better than the same-size solenoid. A simulation experiment is also conducted. Experimental results show that optimization results are verified, and power consumption of the optimized coil is about half of the solenoid when providing the same uniform magnetic field. This indicates that the proposed optimal method is feasible to develop shim coil for ASG.

scholarly journals Structure Optimization and Sealing Performance of Double Corrugated Self-Sealing Composite Gasket

2021 ◽  
Vol 714 (3) ◽  
pp. 032080
Author(s):  
Wei Tan ◽  
Jinya Xu ◽  
Xin Zhou ◽  
Wenfei Deng ◽  
Xiaoming Yu ◽  
...  
Keyword(s):  
Structure Optimization ◽  
Sealing Performance

ANSYS Analysis of Heat Model for the Electromagnetic Drying Cylinder

2012 ◽  
Vol 268-270 ◽  
pp. 916-920
Author(s):  
Zheng Shun Wang ◽  
Wen Jia Han
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Thermal Load ◽  
Geometric Model ◽  
Element Model ◽  
Actual Situation ◽  
Ansys Software ◽  
Software Applications ◽  
Ansys Analysis ◽  
Drying Cylinder

In this thesis, the process of electromagnetic drying cylinder was analyzed creating by the dryer finite element model using ANSYS. The conduction thermal analysis, the applied load and solved showed the results of three major components. Which create a finite element model of the process, mainly the preprocessor using ANSYS software to create or import geometric models from other software applications, and then add the material properties. The last of the geometric model meshing and solving process need to enter solvers according to the actual situation. The setting is applied to the thermal load and conditions. Then it is proceed to the finite element solution operator. It final usually the Post 1, or Post2 view results, and based on our experience to judge correctly

Structural Optimization of the Telescopic Boom of a Certain Type of Truck-Mounted Crane

2014 ◽  
Vol 548-549 ◽  
pp. 383-388
Author(s):  
Zhi Wei Chen ◽  
Zhe Cui ◽  
Yi Jin Fu ◽  
Wen Ping Cui ◽  
Li Juan Dong ◽  
...  
Keyword(s):  
Finite Element ◽  
Static Analysis ◽  
Cross Sections ◽  
Optimization Design ◽  
Structural Parameters ◽  
Vertical Direction ◽  
Element Model ◽  
Shape Parameters ◽  
Conventional Design ◽  
Design Variables

Parametric finite element model for a commonly used telescopic boom structure of a certain type of truck-mounted crane has been established. Static analysis of the conventional design configuration was performed first. And then an optimization process has been carried out to minimize the total weight of the telescopic structures. The design variables include the geometric shape parameters of the cross-sections and the integrated structural parameters of the telescopic boom. The constraints include the maximum allowable equivalent stresses and the flexure displacements at the tip of the assembled boom structure in both the vertical direction and the circumferential direction of the rotating plane. Compared with the conventional design, the optimization design has achieved a significant weight reduction of up to 24.3%.

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