Dynamic Analysis of a High-Speed Grinding Spindle

2011 ◽  
Vol 215 ◽  
pp. 89-94 ◽  
Author(s):  
Jing Zhu Pang ◽  
Bei Zhi Li ◽  
Jian Guo Yang ◽  
Zhou Ping Wu
Keyword(s):  
Finite Element ◽  
Dynamic Analysis ◽  
High Speed ◽  
Grinding Wheel ◽  
Static Characteristics ◽  
Motorized Spindle ◽  
Element Analysis ◽  
Spindle System ◽  
The Finite Element Analysis ◽  
High Speed Grinding

This paper presents the effects of spindle system configuration on the dynamic and static characteristics of high speed grinding. A 3D physical mode of high-speed grinding motorized spindle system with rotation speed of 150m/s was provided. The motorized spindle system consists of bearings, rotor, stator, spindle housing and grinding wheel. Based on the finite element method (FEM), the static characteristics, dynamic and the transient response are analyzed based on the finite element analysis software NASTRAN. It is shown that the spindle overhanging, bearing span have a significant effort on spindle deflection. The dynamic analysis shows no resonance will happen during its speed range. The methods and solutions for the motorized spindle system design and engineering applications was given in this paper.

scholarly journals Analysis on Design and Manufacturing Technology and Precision Machining Technology of Woodworking Machinery

2021 ◽  
pp. 232-239
Author(s):  
Wang Bing
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
High Speed ◽  
Manufacturing Technology ◽  
Precision Machining ◽  
Static Characteristics ◽  
Motorized Spindle ◽  
Element Analysis ◽  
Wood Processing ◽  
The Finite Element Analysis

High speed machining (HSM) has become a development trend of modern manufacturing industry. It can not only significantly improve the production efficiency of products, but also greatly improve the machining accuracy and surface quality of production parts and reduce the production cost. Wood processing involves many processing processes such as sawing, milling and drilling. The compact four head motorized spindle can basically meet the milling and drilling requirements of wood processing. This paper studies the design, manufacturing technology and precision machining technology of woodworking machinery. This paper mainly adopts the finite element analysis method and applies the finite element analysis software ANSYS Workbench to simulate and model the woodworking four head high-speed motorized spindle, then analyzes and calculates its dynamic and static characteristics, and comprehensively considers the main influencing factors on the dynamic and static characteristics of motorized spindle. The test results show that the method proposed in this paper is of great significance to improve the actual working performance of motorized spindle.

The Influence of Surface Dipping and Bulk Filling Agents on Properties of High-Speed Grinding Wheels: Materialographic-Based Numerical Modelling

2020 ◽  
Vol 405 ◽  
pp. 43-47
Author(s):  
Ladislav Čelko ◽  
Petr Skalka ◽  
Karel Slámečka ◽  
David Jech ◽  
Lenka Klakurková ◽  
...  
Keyword(s):  
High Speed ◽  
Metallic Surface ◽  
Surface Finishing ◽  
Grinding Wheel ◽  
Grinding Wheels ◽  
Element Analysis ◽  
The Finite Element Analysis ◽  
Microscope Images ◽  
Safety And Reliability ◽  
High Speed Grinding

In order to increase the peripheral speed of grinding wheels of size of Ø 500 × 18 × Ø 200 mm for precise hard metallic surface finishing from conventional 80 m.s-1 up to 138 m.s-1 while still ensuring their safety and reliability, the critical locations in the grinding wheel were evaluated using the finite element analysis. The microstructure of grinding wheel was revealed using the materialographic techniques and the scanning electron microscope images were recorded in the back-scattered electrons mode. The image analysis was used on recorded micrographs for separation of individual material components, i.e. an abrasive, a binder, and pores, and to extract their geometries and spatial relationships. Subsequently, the influence of different filling agents (Young's modulus of 5, 10, 20, and 40 GPa) was studied, considering both surface dipping and bulk filling treatments.

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.

The Finite Element Analysis of Thermal Property of High-Speed Spindle System in Vertical Machining Center

2012 ◽  
Vol 433-440 ◽  
pp. 567-571 ◽  
Author(s):  
Hong Mei Sun ◽  
Yan Zhong Wang
Keyword(s):  
Finite Element ◽  
Thermal Property ◽  
High Speed ◽  
Thermal Deformation ◽  
Input Parameter ◽  
Element Analysis ◽  
Spindle System ◽  
Machining Center ◽  
The Finite Element Analysis ◽  
Thermal Steady State

The thermal property of the high-speed spindle system in vertical machining center was studied by using finite element method ( FEM ). When the spindle runs at the speed of 4300r/min, the system reaches the thermal steady state after 17 minutes, the temperature distribution in the spindle was symmetrical, and the highest temperature is in the inner ring the front bearing, with temperature rise of 36.7 .With the cutting force as load, The calculated result was taken as an input parameter in Abaqus software, the results of which show the thermal deformation of the spindle. The maximum thermal deformation of the spindle is 1.185 × 10-2 mm, on the shoulder, near the edge of the cutter.

Finite Element Analysis about the Influence that High-Speed Motorized Spindle Spindle System Material has on its Temperature Field

2013 ◽  
Vol 712-715 ◽  
pp. 1209-1212 ◽  
Author(s):  
Ke Zhang ◽  
Xiang Nan Ma ◽  
Li Xiu Zhang ◽  
Wen Da Yu ◽  
Yu Hou Wu
Keyword(s):  
Heat Transfer ◽  
Finite Element ◽  
Temperature Field ◽  
Heat Transfer Rate ◽  
Transfer Rate ◽  
High Speed ◽  
Ceramic Materials ◽  
Motorized Spindle ◽  
Element Analysis ◽  
Finite Element Software

The article has analyzed the changes of temperature of different materials of the spindle, and considered 170SD30 Ceramic Motorized Spindle and the same model Metal Motorized Spindle as the research objects, analyzed the inside heat source and heat transfer mechanism of the high-speed motorized spindle; used finite element software to set up the model of the motorized spindle, and did simulation and analysis. Verified by simulation, heat transfer rate of ceramic materials is slower than the metallic materials, in actual operation of the process, due to different materials have different heat transfer rate, so the temperature distribution of the different materials of motorized spindle are different. This conclusion provides the basis to solve motorized spindle temperature field distribution.

The Finite Element Analysis of Dynamic Interaction of High-Speed Shinkansen, the Rail, and Bridge

1993 ◽  
Author(s):  
Makoto Tanabe ◽  
Hajime Wakui ◽  
Nobuyuki Matsumoto
Keyword(s):  
Finite Element ◽  
Dynamic Response ◽  
High Speed ◽  
Response Analysis ◽  
Element Formulation ◽  
Element Analysis ◽  
Finite Element Program ◽  
The Finite Element Analysis ◽  
Element Program ◽  
The Impact

Abstract A finite element formulation to solve the dynamic behavior of high-speed Shinkansen cars, rail, and bridge is given. A mechanical model to express the interaction between wheel and rail is described, in which the impact of the rail on the flange of wheel is also considered. The bridge is modeled by using various finite elements such as shell, beam, solid, spring, and mass. The equations of motions of bridge and Shinkansen cars are solved under the constitutive and constraint equations to express the interaction between rail and wheel. Numerical method based on a modal transformation to get the dynamic response effectively is discussed. A finite element program for the dynamic response analysis of Shinkansen cars, rail, and bridge at the high-speed running has been developed. Numerical examples are also demonstrated.

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