The Optimization Design of Arm Bracket Structure Topology Based on ANSYS

2013 ◽  
Vol 834-836 ◽  
pp. 1464-1469
Author(s):  
Sheng Mei Luo ◽  
Zhao Yang Niu ◽  
Wei Liu ◽  
Fu Fang Luo ◽  
Jun Jun Jiang
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Optimal Topology ◽  
Dimensional Model ◽  
Structure Topology ◽  
Change Mechanism ◽  
Machining Center ◽  
Automatic Tool Change ◽  
Automatic Tool ◽  
Ansys Workbench

The detail analysis proposal of the cylinder body is put forward for the automatic tool change mechanism of the QYJ-21 type horizontal machining center. It consists of three main aspects. Firstly, the dimensional model of the cylinders arm bracket portion will be created. Secondly, the topology optimization design of the arm bracket is implemented based on ANSYS Workbench. Finally, meeting the stiffness requirements, the optimal topology shape will be established, for it had the lightest weight.

Thermo-Structural Coupled Topology Optimization of Micro-Capacitive Accelerometer

2012 ◽  
Vol 433-440 ◽  
pp. 3080-3085 ◽  
Author(s):  
Huan Yuan Chen ◽  
Yong Jun Xie ◽  
Dong Song Yan ◽  
Hao Liu ◽  
Jing Ming Li
Keyword(s):  
Topology Optimization ◽  
Elastic Beam ◽  
Optimal Topology ◽  
Beam Structure ◽  
Innovative Design ◽  
Maximum Deformation ◽  
Structure Topology ◽  
Capacitive Accelerometer ◽  
Limit Value ◽  
Moving Asymptotes

In order to enhance the working performance of micro-capacitive accelerometer in high temperature environment, the structure topology optimization of a micro-capacitive accelerometer is proposed. After the study of thermo-structural coupled governing equations and sensitivity analysis, the mass-block and elastic-beam structure of comb micro-capacitive accelerometer topology optimization model is established. Then the optimal topology forms of mass-block and elastic-beam structure are obtained with the MMA (method of moving asymptotes) method. At last, the calculating results indicate that the maximum deformation at acceleration detection direction is only 22nm at the operating temperature range of 0~300°C, which less than the maximum deformation of the limit value (25nm), and provides a reliable way for innovative design of micro-capacitive accelerometer.

Optimization Design of DVG850 Worktable System Based on ANSYS Workbench

2012 ◽  
Vol 184-185 ◽  
pp. 356-359
Author(s):  
Jiang Miao Yi ◽  
Dong Qiang Gao ◽  
Fei Zhang ◽  
Huan Lin
Keyword(s):  
Modal Analysis ◽  
Natural Frequency ◽  
High Speed ◽  
Optimization Design ◽  
Element Model ◽  
Single Screw ◽  
Machining Center ◽  
The Finite Element Model ◽  
Better Than ◽  
Ansys Workbench

The finite element model of worktable system is created and modal analysis is made with ANSYS Workbench by taking DVG850 high-speed vertical machining center worktable system for example. We make modal analysis of single-screw strength general reinforcement worktable system and get the natural frequency and the vibration mode.Then in order to improve the system's natural frequency, the scheme of dual-screw worktable system is put forward. Also natural frequency and vibration mode is got. Finally, it is proved that the performance of dual-screw worktable system is significantly better than the single-screw one. This provides a reliable reference for further study on dynamic analysis of worktable system.

Structure Topology Optimization Design and Shock Resistance Study on Nuclear Power Safety DCS Cast Aluminum Cabinet

2020 ◽  
Author(s):  
Wang Dongwei ◽  
Liu Mingxing ◽  
Wu Xiao ◽  
Yan Hao ◽  
Wu Zhiqiang
Keyword(s):  
Topology Optimization ◽  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Optimization Design ◽  
High Stress ◽  
Shock Load ◽  
Normal Operation ◽  
Cast Aluminum ◽  
Structure Topology

Abstract Offshore floating nuclear power plant (FNPP) is characterized by its small and mobility, which is not only able to provide safe and efficient electric energy to remote islands, but to the oil and gas platforms. The safety digital control system (DCS) cabinet, as a carrier for the electronic devices, plays a significant role in ensuring the normal operation of the nuclear power plant. To satisfy the requirements of cabinet used in the sea environment, such as well rigidity, shock load resistance, good seal and corrosion resistance, etc, more and more attention is focused on the cast aluminum cabinet. However, the cast aluminum structure may cause larger weight of cabinet, which inevitability affects the mobility of cabinet, and increases the carried load of ship as well. Therefore, seeking for an effective approach to design a light weight cast aluminum cabinet for the offshore FNPP is definitely necessary. In this work, a frame of cast aluminum cabinet with lightweight is obtained successfully via structure topology optimization design, it is found that the weight of the frame can be reduced to 50% after optimization iterations. Subsequently, the natural frequency of the optimized cast aluminum cabinet is calculated by using ABAQUS, it is seen that the first mode frequency of the frame is beyond 30 Hz, which can meet the basic stiffness requirement. Accordingly, dynamic design analysis method (DDAM) is performed to verify the ability of the optimized cast aluminum cabinet in resisting sudden shock load, and the shock response characteristics of the cabinet are determined. Numerical results support that the optimized frame of cabinet possesses good resistance to high level shock. However, for the assembled cast aluminum cabinet, the vertical shock circumstance turns out to be the most critical condition, high stress and deformation regions occurs at the bracket and column. Reinforcements are proposed to make the bracket stiffer in this shock loading condition.

Optimization Design on Headstock of Shape High-Speed Vertical Machining Center

2011 ◽  
Vol 121-126 ◽  
pp. 1023-1027
Author(s):  
Chun Zhang ◽  
Zhi Yuan Li
Keyword(s):  
Optimal Design ◽  
Response Surface ◽  
High Speed ◽  
Optimization Design ◽  
Parametric Model ◽  
Machining Center ◽  
Design Variables ◽  
Test Technology ◽  
Design Result ◽  
Ansys Workbench

Optimization design was a technology that searched and determined the optimal design. Parametric model of headstock was established in Pro/E, and the parametric model was imported into the ANSYS Workbench. Then multi-objective optimization design was carried out in DesignXplorer module based on test technology, response surface that the combinations of design variables aimed at the objective function was obtained, the situation which design variables changes impacted on performance parameters from the response surface was viewed, a relatively ideal optimal design result was chosen. The mass of improved headstock was reduced, under the condition that performance in all aspects was not diminished.

scholarly journals Advanced Optimization Design of Cross Beams Structure

2014 ◽  
Vol 8 (1) ◽  
pp. 117-123
Author(s):  
Ke Zhang ◽  
Xuan Mu ◽  
Dehong Zhao ◽  
Yuhou Wu
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Simulation Analysis ◽  
Lightweight Design ◽  
Optimization Method ◽  
Production Costs ◽  
Structure Quality ◽  
Machining Center ◽  
Traditional Structure ◽  
Inherent Frequency

Solid Isotropic Microstructure with Penalization(SIMP) in topology optimization was deeply analyzed, and thus SIMP topology optimization criteria algorithm was deduced. Simulation analysis to the results was also conducted by Ansys, so as the structural lightweight design to machine crossbeams of the HTM series gantry. By verifying, the structure was 3.8% lower than the traditional structure quality, stiffness increased by 16.07%, and the overall inherent frequency was improved. By applying topology optimization method to the design process of the machining center HTM series, ma-terial utilization is improved and production costs were reduced.

Topology Optimization Design of Pre-Stressed Plane Entity Steel Structure with the Constrains of Stress and Displacement

2014 ◽  
Vol 945-949 ◽  
pp. 1216-1222 ◽  
Author(s):  
Li Yao ◽  
Yun Xia Gao ◽  
Hai Jun Yang
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Mechanical Performance ◽  
Steel Structure ◽  
Structural Topology ◽  
Unit Size ◽  
Structure Topology ◽  
Design Variables ◽  
Displacement Sensitivity ◽  
Low Sensitivity

For the prestressed plane entitiy steel structure topology optimization design which design variables include the cable pretension value, unit size and the structural topology, the optimized mathematical model which objective function is the minimum structural weight is established with consideration of the constrains of stress and displacement. As for the solving method, firstly we need to determine the pretension applying to the cable according to full stress design and choose the unit size; then we need to conduct displacement sensitivity analysis to delete the low sensitivity unit to realize the structural topology optimization design. The example result is in conformity with the corresponding system of mechanical performance, and it indicates that the method proposed in this paper is effective.

Method of Continuum Structural Topology Optimization with Information Functional Materials Based on K Nearest Neighbor

2011 ◽  
Vol 321 ◽  
pp. 200-203
Author(s):  
Jing Kui Li ◽  
Yi Min Zhang
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Nearest Neighbor ◽  
Functional Materials ◽  
Structural Topology ◽  
K Nearest Neighbor ◽  
Original Design ◽  
Structure Topology ◽  
Unit Stress ◽  
Information Functional

The KNN method is extracted from the technique of pattern recognition for the continuum structure topology optimization design with information functional materials. Original design region is taken as initial sample space, and continuum structure's units are regarded as samples. Unit stress and displacement sensitivity are utilized as feature vector to describe sample, and the feature vectors' Euclidean distance is considered as the recognition standard to classify all the samples. One FEM package is utilized to process the entire optimization. Finally, the topology optimization result is obtained. Several examples are verified under different situations. The results indicate that the KNN method is feasible.

Structure Topology Optimization Design for Compression Box of Horizontal Preloading Domestic Waste Transfer Station

2013 ◽  
Vol 475-476 ◽  
pp. 1382-1386
Author(s):  
Hui Zhou ◽  
Gang Yan Li ◽  
Yuan Zhang ◽  
Le Li
Keyword(s):  
Topology Optimization ◽  
Optimization Design ◽  
Bottom Plate ◽  
Structural Topology Optimization ◽  
Structural Topology ◽  
Domestic Waste ◽  
Side Plate ◽  
Structure Topology ◽  
Transfer Station ◽  
Waste Transfer

Horizontal preloading domestic waste transfer station is the core equipment for domestic waste disposal. Compression equipment is the elementary equipment of horizontal preloading domestic waste transfer station, which should be ensured its mechanical properties and structural lightweight. According to the compression box structure in this paper, structural topology optimization model is established. By using HyperWorks software, the result of structural topology optimization result of compression box is obtained. Based on the result of topology optimization, the structural improvement design model of compression box is established, and the number, location, size of strengthening rib for bottom plate, top plate, side plate are optimal designed so as to realize structural lightweight.

The Topological Optimization Design of Cross Beams Structure of Shaped Stone Turning-Milling CNC (HTM50200)

2013 ◽  
Vol 694-697 ◽  
pp. 2725-2728
Author(s):  
Xuan Mu ◽  
Ke Zhang ◽  
De Hong Zhao ◽  
Yu Hou Wu
Keyword(s):  
Topology Optimization ◽  
Machine Tools ◽  
Optimization Design ◽  
Lightweight Design ◽  
Optimization Method ◽  
Production Costs ◽  
Topological Optimization ◽  
Maximum Deformation ◽  
Machining Center ◽  
Traditional Structure

To reduce the overall mass of the machine tools, this paper made the structural lightweight design to crossbeams of the HTM series gantry machine by topology optimization. The topology optimization mathematical model was built by taking the quality as the constraint, overall stiffness to the maximum (complicance to the minimum) as the design goals. It also took HTM50200 Turning Milling Center as an example, put forward an asymmetric layout structure of auxiliary hole according to the optimization results by numerical simulation and calculation of ANSYS. By verified, the mass of the structure was 2.76% lower than traditional structure, and the maximum deformation decreased by 16.07%. By applying the topology optimization method to the design process of the HTM series machining center, the utilization of materials will be improved and the production costs will be reduced.

Optimization Design of Towbarless Aircraft Tractor Frame Based on ANSYS Workbench

2012 ◽  
Vol 268-270 ◽  
pp. 921-925
Author(s):  
Li Wen Wang ◽  
Qiang Wang ◽  
Wei Zhang
Keyword(s):  
Finite Element ◽  
Topology Optimization ◽  
Static Analysis ◽  
Working Conditions ◽  
Optimization Design ◽  
Bending Strength ◽  
Maximum Load ◽  
Original Design ◽  
Design Requirements ◽  
Ansys Workbench

The 3-D frame model of towbarless aircraft tractor was established with the UG software, and then transferred into ANSYS Workbench to conduct the finite element static analysis to check the bending strength of the frame on maximum load working conditions. Using topology optimization module, original design of frame was optimized in accordance with the calculation result. It shows that the strength of optimized frame meet the design requirements, while the weight of optimized frame is reduced by 8%.

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