Subjects
-Tags
Mechanical Power Engineering
Abstract
The paper describes theoretical and experimental analysis of dynamics of system: grinding wheel- workpiece external cylindrical plunge grinding process to study the effect of workpiece previous profile on the ground workpiece roundness. The study has been carried out theoretical model taking contact stiffness of system (workpiece and machine), grinding wheel and workpiece wear into consideration. The results showed that mode shape vibration errors are strongly depends on amplitude of initial workpiece profiles. The mode shape vibration errors increases with the increase of initial workpiece profiles amplitudes and workpiece length.
Experiments had been carried out on identical specimens. These specimens were turned first with different cutting conditions to obtain different profiles. Then a cylindrical plunge grinding operation with the same cutting conditions was applied for the resulted specimens. The vibration signals existing during grinding were recorded. The resulted roundness error before and after grinding were compared for each specimens.
The results showed the root mean square (RMS) of vibration level, roundness error and undulation number of the ground workpiece are dependent on the initial workpiece profile. The comparison between theoretical and experimental results showed as good agreements.
To compensate roundness error within an acceptable range, fuzzy knowledge base controller (FKBC) was proposed. The proposed fuzzy controller predicts the work piece shape error more accurately, and reduces it by about 20%
DOI
10.21608/bfemu.2021.141158
Keywords
Plunge grinding, Vibration, Roundness, initial profile, undulation, flexibility, Fuzzy controller
Authors
MiddleName
-Affiliation
Assistant Professor., Mechanical Power Engineering Department., Shoubra Faculty of Engineering.,
108 Shoubra St.-P.C./112411, Cairo, Egypt
Email
akader60@hotmail.com
Orcid
-MiddleName
-Affiliation
Assistant Professor., Mechanical Power Engineering Department., Shoubra Faculty of Engineering,
108 Shoubra St.-P.C./112411, Cairo, Egypt
Email
-Orcid
-MiddleName
-Affiliation
Associate Professor., Mechanical Power Engineering Department., Shoubra Faculty of Engineering.,
108 Shoubra St.-P.C./112411, Cairo, Egypt
Email
-Orcid
-Link
https://bfemu.journals.ekb.eg/article_141158.html
Detail API
https://bfemu.journals.ekb.eg/service?article_code=141158
Publication Title
MEJ. Mansoura Engineering Journal
Publication Link
https://bfemu.journals.ekb.eg/
MainTitle
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