Design refinements and experimental test of hybrid excitation motor for main spindle drive in machine tools

2010 ◽  
Author(s):  
M. Sridharbabu ◽  
T. Kosaka ◽  
N. Matsui
Keyword(s):  
Experimental Test ◽  
Machine Tools ◽  
Hybrid Excitation ◽  
Main Spindle

Design Studies on Hybrid Excitation Motor for Main Spindle Drive in Machine Tools

2010 ◽  
Vol 57 (11) ◽  
pp. 3807-3813 ◽  
Author(s):  
Takashi Kosaka ◽  
Muthubabu Sridharbabu ◽  
Masayoshi Yamamoto ◽  
Nobuyuki Matsui
Keyword(s):  
Machine Tools ◽  
Design Studies ◽  
Hybrid Excitation ◽  
Main Spindle

scholarly journals Selection of numerical compensation model of geometric errors of machine tools

Mechanik ◽  
2018 ◽  
Vol 91 (11) ◽  
pp. 980-983
Author(s):  
Paweł Majda ◽  
Joanna Jastrzębska
Keyword(s):  
Machine Tool ◽  
Experimental Test ◽  
Machine Tools ◽  
Geometric Errors ◽  
Test Program ◽  
Volumetric Error ◽  
Technical Report ◽  
Measuring Machine ◽  
Intensive Work ◽  
Selection Of

After many years of intensive work, experts from ISO TC 39 have published the technical report ISO TR 16907 “Machine tools – numerical compensation of geometric errors”. This document defines the terminology, presents advantages and limitations of numerical compensation of machine tool and measuring machine. This gives machine manufacturers and users important information on the application of numerical compensation. In the context of the compensation types defined in ISO TR 16907, presented principles of selecting volumetric error models for three-axis machine tools. The principles of reducing these models due to the functional tasks of machine tools were also presented. The final result is a table of reduced models for three-axis machine tools. It determines the degree of the model and the experimental test program, which should be done to determine volumetric error.

scholarly journals The synchronous generator based on a hybrid excitation with the extended range of voltage adjustment

2019 ◽  
Vol 84 ◽  
pp. 02009 ◽  
Author(s):  
Andrzej Popenda ◽  
Sławomir Chwalba
Keyword(s):  
Theoretical Analysis ◽  
Experimental Test ◽  
Permanent Magnets ◽  
Magnetic Circuit ◽  
Synchronous Generator ◽  
Equivalent Circuits ◽  
Field Coil ◽  
Hybrid Excitation ◽  
Extended Range ◽  
Generator Voltage

In the paper a synchronous generator based on a hybrid excitation, including permanent magnets and field coil, is studied. The structures of rotor magnetic circuit allowing one to expand the range of generator voltage adjustment are explained and compared with the standard hybrid rotor. The structures are described mathematically and their equivalent circuits are given. The results of theoretical analysis and experimental test are presented.

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