Thermal Characteristics Finite Element Analysis and Temperature Rise Experiment for High Speed Motorized Spindle

2011 ◽  
Vol 52-54 ◽  
pp. 1206-1211 ◽  
Author(s):  
Huai Xing Wen ◽  
Mei Yan Wang
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Machine Tool ◽  
Temperature Rise ◽  
High Speed ◽  
Thermal Characteristics ◽  
Analysis Model ◽  
Ansys Software ◽  
Motorized Spindle ◽  
Element Analysis

The thermal characteristics of the motorized spindle determines maching qualities and cutting capabilities, and is one of the important factors influencing the precision of the high speed NC machine tool. To improve the performance of the high speed machine tool, it is important to study the thermal characteristics of the motorized spindle. It had been studied in two ways: one is finite element analysis by Ansys software, in which the finite element analysis model was built. According to the actual working condition, the heat source and the heat transfer coefficient of every part are calculated. On this basis, the temperature field and temperature rises were gotten in Ansys software. The other way is temperature rises experiment on the motorized spindle test platform. The result was shown in the form of curve. These two ways shown the same result: the highest temperature rise appears in the area of electromotor, then followed by the rolling bearing .The result provides the necessary theory basis for optimizing the structure of the motorized spindle and establishes a basis for the research and application about the high speed spindle.

Finite Element Analysis of Thermal Characteristics of High-Speed Motorized Spindle

2007 ◽  
Vol 10-12 ◽  
pp. 258-262 ◽  
Author(s):  
Y. Lu ◽  
Ying Xue Yao ◽  
R.H. Hong
Keyword(s):  
Finite Element ◽  
Machine Tool ◽  
Temperature Rise ◽  
High Speed ◽  
Thermal Characteristics ◽  
Motorized Spindle ◽  
Element Analysis ◽  
Thermal Deformations ◽  
Characteristics Analysis ◽  
High Speed Machine

Motorized spindle is one of the core parts of high-speed machine tool, to a great extent, its thermal characteristics determine the thermal stress and thermal deformations, therefore the research on thermal characteristics is of great significance to increase the accuracy of high-speed machine tool. In this paper, the heat generation developed in the built-in motor and the bearings is calculated. The motorized spindle is modeled and its thermal characteristics analysis by finite element method is done using ANSYS software, in the foundation of analyzing its configuration and heat transfer. The variation regularity of its temperature-rise and temperature field is also summarized. Thereby it provides a powerful theoretical basis for reducing temperature–rise, calculating thermal deformations and improving working conditions.

Design of Special Fixture for Micro High Speed Motorized Spindle

2011 ◽  
Vol 228-229 ◽  
pp. 66-71
Author(s):  
Xiao Hong Lu ◽  
Zhen Yuan Jia ◽  
Zhi Cong Zhang ◽  
Xv Jia
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Speed ◽  
Micro Milling ◽  
Machining Accuracy ◽  
Milling Machine ◽  
Cnc Milling ◽  
Analysis Method ◽  
Motorized Spindle ◽  
Element Analysis

The fixture of motorized spindle significantly affect the vibration of micro high speed CNC milling machine, its performance can directly affect the machining accuracy of the entire micro milling machine. A special fixture of high-speed motorized spindle is designed in the paper and its static characteristics are checked by utilizing ANSYS finite element analysis software. To guarantee the sufficient strength of bolts and the safety of motorized spindle when the motorized spindle runs at high speed, theory analysis method and ANSYS finite element analysis method are used to make the strength check of the fixture. The designed special fixture for high speed motorized spindle plays an important part in the design of high-speed motorized spindle.

Analysis of High-Speed Railway Roadbed Settlement in Seasonally Frozen Regions

2012 ◽  
Vol 204-208 ◽  
pp. 1740-1743 ◽  
Author(s):  
Gang Qiang Shi ◽  
Yu Zhi Zhang ◽  
Shi Yun Zhao ◽  
Lu Xin Zhang ◽  
Bao Chen Sun
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Speed ◽  
Deformation Analysis ◽  
Analysis Model ◽  
Element Analysis ◽  
High Speed Railway ◽  
Finite Element Analysis Model ◽  
Seasonally Frozen Regions ◽  
Passenger Dedicated Line

Relying on the roadbed in seasonally frozen region of Harbin-Dalian passenger dedicated line，a finite element analysis model was built to study the changing rules of roadbed settlement in construction and operation. The analog and actual results were in good consistence, the model is suitable for the roadbed deformation analysis of high-speed railway in seasonally frozen regions.

Finite Element Analysis and Dynamics Charateristic Study for High-Speed Magnetic Suspension Motorized Spindle of CNC Machine Tools

2011 ◽  
Vol 317-319 ◽  
pp. 595-599
Author(s):  
Yu Xin Sun ◽  
Ling Ding ◽  
Tao Shi ◽  
Xian Xing Liu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Induction Motor ◽  
High Speed ◽  
Magnetic Bearing ◽  
Magnetic Suspension ◽  
Distinct Advantage ◽  
Motorized Spindle ◽  
Element Analysis ◽  
Spindle System

According to magnetic suspension motorized spindle system, high speed motorized spindle system based on bearingless induction motor is presented in this paper. The prototype of high speed motorized spindle system with bearingless induction motor is studied and analyzed by using finite element analysis software Ansoft/Maxwell and Riccati transfer matrix method, and compared with high speed motorized spindle system supported by Active Magnetic Bearing (AMB). The results show that high speed motorized spindle system with bearingless induction motor has distinct advantage of simple and compact structure, which is easier to realize high speed and extra-high speed operation.

Static and Dynamic Force Analysis to Large-Scale Bed of Leather Cutting Machine Tool

2007 ◽  
Vol 353-358 ◽  
pp. 1927-1930
Author(s):  
Guo Shun Ji ◽  
Wen Wang ◽  
Yan Jun Huang ◽  
Zi Chen Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Machine Tool ◽  
High Speed ◽  
The Body ◽  
Dynamic Force ◽  
Static Force ◽  
Force Analysis ◽  
Element Analysis ◽  
High Speed Cutting

The leather is cut by hand or by hand with some help of semiautomatic machine in general leather cutting technology. In order to enhance the cutting efficiency and quality, the machine tool to realize high speed automatic leather cutting was developed. The final goal of the design is to cut a piece of hide on a working table with cutting velocity 2 meters per second, the dimension of the machine tool is big. It is very difficult to design the frame of this machine tool to meet the performance index for high speed cutting, so the static and dynamic force analysis to the body of it was implemented. First, the digital model of the body of it was built with AutoCAD software, then, the digital model in IGES format was transmitted to the Ansys software and the finite element analysis to it were carried out. Because the static force and vibration from driving system have great influence on the deformation of this machine tool and this deformation will affect the cutting precision and the whole performance of it. So the static force analysis and modal analysis were carried out. Finally, the results of finite element analysis were discussed, corresponding modification to the design was proposed. The analysis results indicate the mechanical property of the body of the developed machine can meet the requirements for high speed cutting.

Finite Element Analysis on Thermal Characteristics of Lathe Motorized Spindle

2011 ◽  
Vol 311-313 ◽  
pp. 2434-2439 ◽  
Author(s):  
Ping Ma ◽  
Biao Zhou ◽  
Hai Peng Li
Keyword(s):  
Finite Element ◽  
Temperature Field ◽  
High Speed ◽  
Thermal Characteristic ◽  
Thermal Characteristics ◽  
Internal Heat ◽  
Transfer Coefficients ◽  
Motorized Spindle ◽  
Element Analysis ◽  
Spindle Unit

Abstract．High-speed motorized spindle is a promising technology widely used in high speed machining．The lathe motorized spindle is the key component of the high speed NC lathe and the thermal characteristics of the lathe motorized spindle is one of the major factors influencing the performance of the machine tools．In order to improve the accuracy and reliability of the high speed NC lathe，the thermal characteristic of the high speed NC motorized spindle has been studied in this paper．Firstly，the structure feature of the spindle has been introduced and two major internal heat sources of motorized spindle have been investigated．Secondly，the heat transfer coefficients of the major components of the lathe spindle have been conducted．Then，the 2D temperature field model has been developed with finite element method．Based on it, the temperature field and temperature rises of the spindle have been simulated and the reasonability of temperature distribution of the spindle unit has also been discussed．The research results provide the reference to evaluate of the thermal behavior of the high speed NC motorized spindle．

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