Dynamic Modeling and Simulation of Defected Rolling Element Bearings Working under Different Operating Conditions : (Record no. 6855)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 07810nam a2200433 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-NbEJU |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20241204202457.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 240924b2024 ua | m||| 00| 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-NbEJU |
| Language of cataloging | eng |
| Transcribing agency | EG-NbEJU |
| Modifying agency | EG-NbEJU |
| 041 ## - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | ara |
| 050 ## - LIBRARY OF CONGRESS CALL NUMBER | |
| Classification number | IME PhD. 2024 |
| Item number | 02 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Mahmoud , Mahmoud Mohammed Atef Abdalhamed |
| 245 10 - TITLE STATEMENT | |
| Title | Dynamic Modeling and Simulation of Defected Rolling Element Bearings Working under Different Operating Conditions : |
| Remainder of title | A Thesis Submitted to the Graduate School of Innovative Design Engineering : Egypt - Japan University of Science and Technology (E - JUST) : In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Industrial and Manufacturing Engineering / |
| Statement of responsibility, etc. | by Mahmoud Mohammed Atef Abdalhamed Mahmoud ; Supervisor Committee Associate prof. Mohamed Galal Nassef - Industrial and Manufacturing Engineering - E-JUST - Egypt , Associate prof. Wael Mahmoud Khaireldien - Industrial and Manufacturing Engineering - E-JUST - Egypt , Prof. Jiwang Yan - Mechanical Engineering - Keio University - Japan ; Examination Committee Prof. Amal Elhosaieny Meselhy Alshorbagy - Mechanical Design and Production Engineering - Zagazig University - Egypt , Prof. Ossama Moustafa Mohamed Mokhiamar - Mechanical Engineering - Alexandria University - Egypt , Associate prof. Mohamed Galal Nassef - Industrial and Manufacturing Engineering - E-JUST - Egypt , Associate prof. Wael Mahmoud Khaireldien - Industrial and Manufacturing Engineering - E-JUST - Egypt |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | النمذجة و المحاكاة الديناميكية لكراسي التحميل المعيبة ذات العناصر المتدحرجة في ظروف تشغيل مختلفة : |
| Remainder of title | رسالة علمية مقدمة الى المدرسة التخصصية للدرسات العليا - هندسة التصميم الإبداعي - الجامعة المصرية اليابانية للعلوم و التكنولوجيا كاستيفاء جزئي لمتطلبات الحصول على درجة دكتوراه الفلسفة في الهندسة الصناعية و التصنيع / إعداد محمود محمد عاطف عبدالحميد محمود ; لجنة الاشراف على الرسالة أ.م.د. محمد جلال ناصف - قسم الهندسة الصناعية و التصنيع - الجامعة المصرية اليابانية للعلوم و التكنولوجيا , أ.م.د. وائل محمود خير الدين - قسم الهندسة الصناعية و التصنيع - الجامعة المصرية اليابانية للعلوم و التكنولوجيا , أ.د. جيوانغ يان - قسم الهندسة الميكانيكية - جامعة كيو- اليابان ; لجنة المناقشة و الحكم على الرسالة أ.د امل الحسيني مصلحي الشوربجي - قسم التصميم الميكانيكي والأنتاج، جامعة الزقازيق , أ.د. اسامه مصطفى محمد مخيمر - قسم الهندسة الميكانيكية - جامعة الأسكندرية , أ.م.د. محمد جلال ناصف - قسم الهندسة الصناعية و التصنيع - الجامعة المصرية اليابانية للعلوم و التكنولوجيا , أ.م.د. وائل محمود خير الدين - قسم الهندسة الصناعية و التصنيع - الجامعة المصرية اليابانية للعلوم و التكنولوجيا<br/><br/> |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Alexandria : |
| Name of publisher, distributor, etc. | Mahmoud Mohammed Atef Abdalhamed Mahmoud |
| Date of publication, distribution, etc. | 2024 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 106 leaves ; |
| Dimensions | 30 cm |
| 500 ## - GENERAL NOTE | |
| General note | Includes a title page in Arabic |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) |
| Degree type | Doctoral |
| Name of granting institution | Egypt - Japan University of Science and Technology (E - JUST) - School of Innovative Design Engineering - Industrial and Manufacturing Engineering Department |
| Year degree granted | 2024 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | .Rolling element bearings (REBS) are essential components in rotating machinery , providing support and minimizing friction between moving and stationary parts Despite their widespread use , REBs are susceptible to failure due to localized defects and skidding damage , which can significantly reduce their lifespan and performance Rolling contact fatigue, electric erosion, and plastic deformation lead to the formation of localized defects on REB surfaces , such as spalls, dents, or bumps These defects increase vibration levels and compromise machinery reliability , potentially leading to severe damage or catastrophic failures if undetected early Moreover , skidding damage is considered one of the leading causes of wear mechanisms in REBS , and it accelerates the presence of localized defects. Despite extensive research on the investigation of REB dynamic behavior , the combined effect of different defect types on bearing vibrations has been relatively understudied Also , only a few REBS dynamic models considered cage flexibility , and a little effort was focused on the effect of lubricant types on the REB Skidding behavior In this study, a 6-DOF dynamic model is developed to investigate the vibration characteristics of REB with a multipoint defect comprising a dent and bump on its raceway surface The model considers various factors such as time-varying contact forces due to defects , lubricant film damping , bearing preload , and the inertia effect of rolling elements Additionally , the impact of lubricant characteristics on REB skidding is explored at different speed states using an improved nonlinear skidding dynamic model The model incorporates time-varying traction coefficient , cage flexibility , and cage pocket clearance The tested lubricants are lithium grease (LGT2), compound calcium sulfonate (CCS) grease , and 4109 Chinese aviation oil The simulation results indicate that vibration patterns are significantly affected by defect type , size , and angle between defects In addition , it highlights the challenge of predicting bearing defect parameters solely from acceleration signal analysis , emphasizing the need for jerk signal analysis Furthermore , simulation results indicate that lubricant properties significantly affect REB dynamic performance , influencing cage slip ratio , roller - raceway sliding velocity , and cage-roller impact force Notably , CCS grease exhibits superior efficiency across all operating conditions , attributed to its structural strength , shear stability , and high oil release rate This study provides valuable insights for enhancing the stability , reliability , and safety of rotating machinery by facilitating early fault detection and diagnosis of REBs Additionally , it underscores the importance of selecting appropriate lubricants tailored to specific operating conditions |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as a digital file (for more information please check our Digital Repository) |
| 590 ## - LOCAL NOTE (RLIN) | |
| Local note | IDE |
| Provenance (VM) [OBSOLETE] | IME |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nassef , Mohamed Galal |
| Relator term | Supervisor |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Khaireldien , Mahmoud |
| Relator term | co-Supervisor |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Yan , Jiwang |
| Relator term | co-Supervisor |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Alshorbagy , Amal Elhosaieny Meselhy |
| Relator term | Examinator |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mokhiamar , Ossama Moustafa Mohamed |
| Relator term | co-Examinator |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Nassef , Mohamed Galal |
| Relator term | co-Examinator |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Khaireldien , Wael Mahmoud |
| Relator term | co-Examinator |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | ناصف , محمد جلال |
| Relator term | مشرف |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | خير الدين , وائل محمود |
| Relator term | مشرف مساعد |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | يان , جيوانغ |
| Relator term | مشرف مساعد |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | الشوربجي , امل الحسيني مصلحي |
| Relator term | مناقش |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | اسامه مصطفى محمد مخيمر |
| Relator term | مناقش مساعد |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | ناصف , محمد جلال |
| Relator term | مناقش مساعد |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | خير الدين , وائل محمود |
| Relator term | مناقش مساعد |
| 901 ## - Cataloger information | |
| Cataloger Name | HaGeR |
| 902 ## - PDF File name | |
| PDF File name | Th-New_ (1).pdf |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Library of Congress Classification |
| Suppress in OPAC | No |
| Koha item type | Dissertations |
| Withdrawn status | Lost status | Source of classification or shelving scheme | Damaged status | Not for loan | Home library | Current library | Date acquired | Total checkouts | Full call number | Barcode | Date last seen | Copy number | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Library of Congress Classification | Fayza Aboulnaga Central Library | مكتبة فايزة أبو النجا المركزية بالحرم الجامعي | Fayza Aboulnaga Central Library | مكتبة فايزة أبو النجا المركزية بالحرم الجامعي | 09/24/2024 | IME PhD. 2024 02 | 10014183 | 09/24/2024 | C. 1 | 09/24/2024 | Dissertations |