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.

Optimization of DVG850 Dual-Screw Worktable System Based on ANSYS Workbench

2012 ◽  
Vol 601 ◽  
pp. 181-185
Author(s):  
Jiang Miao Yi ◽  
Dong Qiang Gao ◽  
Fei Zhang ◽  
Huan Lin
Keyword(s):  
Dynamic Analysis ◽  
Modal Analysis ◽  
Driving Force ◽  
High Speed ◽  
Horizontal Distance ◽  
Single Screw ◽  
Machining Center ◽  
Ansys Workbench

In traditional single-screw worktable system, the system is always subjected with torque because the driving force and force-bearing point of the workpiece always change with the processing path, so its performance may be affected. Therefore, the scheme of dual-screw worktable system is put forward and modal analysis with ANSYS Workbench is made by taking DVG850 high-speed vertical machining center worktable system for example. Then four alternatives of the machine are proposed based on the position of screw and guide.Through modal analysis of different parameters of the system, we ultimately select the dual-screw worktable system with highest performance (Screws place inside of the guide and horizontal distance of the two screws is 310mm.) as the optimalizing plan. This provides a reliable reference for further study on dynamic analysis of worktable system.

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.

Modal Analysis of BT Spindle-Toolholder Interface Based on Abaqus/Standard

2013 ◽  
Vol 662 ◽  
pp. 632-636
Author(s):  
Yong Sheng Zhao ◽  
Jing Yang ◽  
Xiao Lei Song ◽  
Zi Jun Qi
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Dynamic Characteristics ◽  
High Speed ◽  
Element Model ◽  
Contact Theory ◽  
High Speed Machining ◽  
The Finite Element Model

The quality of high speed machining is directly related to dynamic characteristics of spindle-toolholder interface. The paper established normal and tangential interactions of BT spindle-toolholder interface based on finite element contact theory, and analysed free modal in Abaqus/Standard. Then the result was compared with the experimental modal analysis. It shows that the finite element model is effective and could be applied in the future dynamic study of high-speed spindle system.

Spindle System Dynamic Characteristics Analysis of Vertical Gantry Machining Center

2013 ◽  
Vol 456 ◽  
pp. 286-290
Author(s):  
Hong Bing Huang ◽  
Yong Ming Wang ◽  
Shuai Xia
Keyword(s):  
Finite Element ◽  
Modal Analysis ◽  
Element Model ◽  
Motorized Spindle ◽  
Spindle System ◽  
Machining Center ◽  
Object Based ◽  
Characteristics Analysis ◽  
Dynamic Characteristics Analysis ◽  
The Finite Element Model

With the spindle system of a vertical gantry machining center as the research object, based on the vibration theory and finite element method, the modal analysis of spindle system is studied. Firstly, the finite element models of the mandrel box body and motorized spindle frame of spindle system are established by ANSYS. And then do the modal analysis of singleton in the boundary of free constraint. Lastly, based on the analysis results to establish the finite element model of the whole spindle system and do the modal analysis of the whole system which under constraint condition. The result shows that the swing of motorized spindle frame and motorized spindle sleeve of spindle system are more obvious.

Analysis of Dynamic Characteristics of Space Deployable Antenna Based on ANSYS

2010 ◽  
Vol 37-38 ◽  
pp. 127-130
Author(s):  
Da Ke Tian ◽  
Rong Qiang Liu ◽  
Zong Quan Deng ◽  
Hong Wei Guo
Keyword(s):  
Finite Element ◽  
Natural Frequency ◽  
Dynamic Characteristics ◽  
Optimization Design ◽  
Element Model ◽  
Truss Structure ◽  
Vibration Modes ◽  
Ansys Software ◽  
Dynamic Modification ◽  
The Finite Element Model

Analysis of dynamic characteristics is one of the important parts of structure analysis for space deployable antenna. In order to study the dynamic characteristics of truss structure for space deployable truss antenna, according to the structure composition, the finite element model of truss structure is built by using ANSYS software, and the modal analysis is carried out by finite element method, then the natural frequencies and the features of vibration modes are obtained. It is emphatically analyzed that the influence of structure parameters such as chords, vertical beams, diagonal beams and crossing cables on the first natural frequency, and the change curves of natural frequency are given. The results can provide the theoretical basis for the antenna’s structural optimization design and dynamic modification.

Modal Analysis of the Cylinder Mechanism Based on ANSYS Workbench

2013 ◽  
Vol 561 ◽  
pp. 496-500
Author(s):  
De Gong Chang ◽  
Hong Yun Dou ◽  
Fu Qin Yang ◽  
Rong Zong
Keyword(s):  
Modal Analysis ◽  
High Speed ◽  
Optimization Design ◽  
Critical Speed ◽  
Structural Characteristics ◽  
Safety Evaluation ◽  
Mode Shapes ◽  
Bearing Stiffness ◽  
Working Principle ◽  
Ansys Workbench

According to the working principle and structural characteristics of cylinder mechanism, the simplified model is built by the Pro/E software. Then we carry on the modal analysis for cylinder mechanism combined with ANSYS Workbench [1], and obtain the natural frequency and mode shapes of all steps. It provides the basis for optimization design and safety evaluation of cylinder mechanism. Finally, we study the influence of bearing stiffness on the critical speed, which provides the basis for the research of high-speed cylinder.

scholarly journals Multicriteria Optimization Design for End Effector Mounting Bracket of a High Speed and Heavy Load Palletizing Robot

2018 ◽  
Vol 2018 ◽  
pp. 1-17 ◽  
Author(s):  
Ying He ◽  
Jiangping Mei ◽  
Jiawei Zang ◽  
Shenglong Xie ◽  
Fan Zhang
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Natural Frequency ◽  
Multicriteria Optimization ◽  
High Speed ◽  
Optimization Design ◽  
Element Model ◽  
Contrastive Analysis ◽  
Heavy Load ◽  
End Effector

End effector mounting bracket is an important load bearing part of high speed and heavy load palletizing robot, which is located at the most distant point in robot rotation radius and frequently works in complex conditions such as start-stop, switch direction, and acceleration and deceleration motion; therefore, optimizing design for its structure is beneficial to improve the dynamic performance of robotic system and reduce energy consumption. Firstly, finite element model of end effector mounting bracket was established, and its accuracy was verified by contrastive analysis of modal test result and finite element model. Secondly, through modal analysis, vibration response test, frequency response analysis, and the static analysis, taking inertia into account, the mass is minimized, the maximal stress is minimized, the maximal deformation is minimized, and the first natural frequency is maximized as the optimization objectives are determined; the design variables were selected by sensitivity analysis, taking their value range as the constraint conditions; approximation models of objective functions were established by the Box-Behnken design and the response surface methodology, and their reliability was validated; to determine weighting factor of each optimization objective, an analytic hierarchy process based on finite element analysis (FEA + AHP) method was put forward to improve the objectivity of comparison matrix; subsequently, the multicriteria optimization mathematical model was established by the methods mentioned above. Thirdly, the multicriteria optimization problem was solved by the NSGA-II algorithms and optimization results were obtained. Finally, the contrastive analysis results between optimized model and initial model showed that, in the case of the maximum stress and deformation within allowable values range, the mass reduction was 17.8%; meanwhile, the first natural frequency was increased, and vibration response characteristics of the entire structure were improved significantly. The validity of this optimization design method was verified.

Optimization Design and Modal Analysis of Satellite SAR Deployable Support Structure

2014 ◽  
Vol 635-637 ◽  
pp. 185-189 ◽  
Author(s):  
Yan Wang ◽  
Rong Qiang Liu ◽  
Hui Yang ◽  
Bin Wang
Keyword(s):  
Finite Element ◽  
Optimal Design ◽  
Modal Analysis ◽  
Optimization Design ◽  
Thermal Environment ◽  
Element Model ◽  
Design Flow ◽  
Affecting Factors ◽  
Thermal Fields ◽  
The Finite Element Model

The design flow of deployable support structures is proposed based on modal analysis, and the finite element model for DST of satellite SAR is researched. On these bases, the affecting factors of DST attitude fundamental frequency (f1) and mass, such as geometry parameters, the lock position, stiffness of hinges and thickness of truss links, are analyzed and optimized. Lastly, considering of space thermal environment the optimal design of the DST is meted the requirements under different thermal fields. The research results are of great importance to improve the performances of DST.

Finite Element Modal Analysis of Reciprocating Compressor Crankshaft Based on ANSYS Workbench

2014 ◽  
Vol 488-489 ◽  
pp. 1208-1210
Author(s):  
You Jun Zhang ◽  
Nan Zhao ◽  
Jie Lu
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Modal Analysis ◽  
Three Dimensional ◽  
Element Model ◽  
Solid Model ◽  
Reciprocating Compressor ◽  
The Finite Element Model ◽  
Ansys Workbench

Crankshaft is one of the important parts of reciprocating compressor. It takes a large reciprocating compressor crankshaft as the research object. First it establishes the three-dimensional solid model of the crankshaft by the software Pro/E. Then it contacts the Pro/E and ANSYS Workbench by the interface to establish the finite element model of the crankshaft. After taking the modal analysis and calculations of the crankshaft in the ANSYS Workbench module, it obtains the foundation for the design of the crankshaft structure.

Static & Dynamic Analysis and Optimization of DVG850 High-Speed Vertical Processing Center

2011 ◽  
Vol 308-310 ◽  
pp. 1258-1263 ◽  
Author(s):  
Dong Qiang Gao ◽  
Fei Zhang ◽  
Zhi Yun Mao ◽  
Jiang Miao Yi ◽  
Huan Lin
Keyword(s):  
Dynamic Analysis ◽  
Machine Tools ◽  
High Speed ◽  
Optimized Design ◽  
Vibration Modes ◽  
Original Design ◽  
Static And Dynamic Analysis ◽  
Machining Center ◽  
Better Than ◽  
Ansys Workbench

The main structure of DVG850 high-speed vertical machining center is instructed in the paper, the solid 3D model of the machine is established by SolidWorks, and then improted into ANSYS Workbench to do static and dynamic analysis. Firstly, the static analysis of high-speed vertical machining center is studied to get the deformation figures. From the analysis of the deformation figures, we can find the locations of weak static stiffness. Next, the modal analysis is studied and the order of natural frequencies we need are obtained. Through the analysis of the vibration modes of this machine tools, its relative weaker parts are pointed. Finally, The structure of the machine tools is improved according to the analysis results. The static and dynamic characteristics of the improved structure are apparently better than that of the original design. It makes a base for optimized design and remanufacturing. .

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