Design Optimization of Magnetic Bearings / (Record no. 171622)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 04591namaa22004331i 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | OSt |
| 005 - أخر تعامل مع التسجيلة | |
| control field | 20250508120150.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 250420s2024 ua a|||fr|m|| 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloguing agency | EG-GICUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GICUC |
| Modifying agency | EG-GICUC |
| Description conventions | rda |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| Language code of summary or abstract | eng |
| -- | ara |
| 049 ## - Acquisition Source | |
| Acquisition Source | Deposit |
| 082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER | |
| Classification number | 621.34 |
| 092 ## - LOCALLY ASSIGNED DEWEY CALL NUMBER (OCLC) | |
| Classification number | 621.34 |
| Edition number | 21 |
| 097 ## - Degree | |
| Degree | M.Sc |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Local Call Number | Cai01.13.13.M.Sc.2024.Na.D. |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Authority record control number or standard number | Nada Adel Rashed Ali Helal, |
| Preparation | preparation. |
| 245 10 - TITLE STATEMENT | |
| Title | Design Optimization of Magnetic Bearings / |
| Statement of responsibility, etc. | By Nada Adel Rashed Ali Helal; Under the Supervision of Prof. Dr. Hesham Ahmed Hegazi, Assoc. Prof. Mohamed Hassan El Shazly, Dr. Antoine Salama Dimitri |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | التصميم الأمثل لكراسي المحاور المغناطيسية / |
| 264 #0 - PRODUCTION, PUBLICATION, DISTRIBUTION, MANUFACTURE, AND COPYRIGHT NOTICE | |
| Date of production, publication, distribution, manufacture, or copyright notice | 2024. |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 125 pages : |
| Other physical details | illustrations ; |
| Dimensions | 30 cm. + |
| Accompanying material | CD. |
| 336 ## - CONTENT TYPE | |
| Content type term | text |
| Source | rda content |
| 337 ## - MEDIA TYPE | |
| Media type term | Unmediated |
| Source | rdamedia |
| 338 ## - CARRIER TYPE | |
| Carrier type term | volume |
| Source | rdacarrier |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (M.Sc.)-Cairo University, 2024. |
| 504 ## - BIBLIOGRAPHY, ETC. NOTE | |
| Bibliography, etc. note | Bibliography: pages 122-125. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | Active magnetic bearings (AMB) have been successfully used for high-speed rotors in <br/>the industry due to their frictionless suspension, no-contact supports, and ability to control <br/>the rotor position and damp the rotating vibrations. For the same load-carrying capacity, <br/>AMBs have a larger volume compared to the other conventional bearings. The design <br/>procedure of AMBs have been used to obtain the initial dimensions of AMB for certain <br/>load carrying capacities. Design optimization problem has been modeled and developed <br/>to minimize the volume of the initially designed AMB, while keeping the same required <br/>capacity. Objective function and design constraints equations for the optimization <br/>problem have been developed. Sequential quadratic programming optimization method <br/>)SQP( and genetic algorithm )GA( techniques have been applied to solve the optimization <br/>problem. Various problems have been solved for 8 poles and 12 poles AMBs <br/>configurations. In addition, an industrial case study of 16 poles magnetic bearing for high-<br/>speed rotor has been studied. The optimization results show that the volume of the <br/>optimized bearings is reduced compared to the initial design, and thus the optimization <br/>results reduce the size of the AMB, saving material, space and cost. |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | تتميز كراسي المحاور المغناطيسية بعدم وجود احتكاك او تلامس للعمود الدوار و توفر القدرة على التحكم في مركز الدوار و تخميد الاهتزازات ولكن يعتبر حجمها كبير لنفس الأحمال مقارنة بكراسي المحاور التقليدية. تقدم هذه الرسالة نموذجا للوصول إلى التصميم الأمثل فقد تم عمل تصميم مبدئي لكراسي المحاور المغناطيسية و تطوير النموذج الرياضي لحل مسألة التصميم الأمثل لكرسي المحور المغناطيسي للوصول للحجم الأصغر مع الحفاظ على نفس قدرة الحمل المطلوبة و تم استنتاج دالة الهدف و معادلات قيود التصميم و ذلك باستخدام خوارزمية التحسين التسلسلية والخوارزمية الجينية . تم تطبيق طريقة التصميم الأمثل على كراسي مغناطيسية مختلفة الأحمال ذات 8 و 12 قطبا وايجاد التصميم الأمثل لكرسي مغناطيسي ذو 16 قطبًا لدوار صناعي عالي السرعة مع قطر كبير وقدرة حمل عالية و قد أثبت النتائج نجاحا في تصغير حجم الكرسي مقارنة بحجم الكرسي الناتج عن التصميم المبدئي . |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Issues CD | Issued also as CD |
| 546 ## - LANGUAGE NOTE | |
| Text Language | Text in English and abstract in Arabic & English. |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Magnetic engineering |
| Source of heading or term | qrmak |
| 653 #0 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | SQP |
| -- | Minimize volume |
| -- | Design optimization |
| -- | AMB |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hesham Ahmed Hegazi |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mohamed Hassan El Shazly |
| Relator term | thesis advisor. |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Antoine Salama Dimitri |
| Relator term | thesis advisor. |
| 900 ## - Thesis Information | |
| Grant date | 01-01-2024 |
| Supervisory body | Antoine Salama Dimitri |
| -- | Hesham Ahmed Hegazi |
| -- | Mohamed Hassan El Shazly |
| Discussion body | Tarek Abdel-Sadek Osman |
| -- | Ramadan Ibrahim El-Sayed El-Soeudy |
| Universities | Cairo University |
| Faculties | Faculty of Engineering |
| Department | Department of Mechanical Design and Production |
| 905 ## - Cataloger and Reviser Names | |
| Cataloger Name | Nourhan |
| Reviser Names | Eman Ghareb |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Edition | 21 |
| Suppress in OPAC | No |
| Source of classification or shelving scheme | Home library | Current library | Date acquired | Inventory number | Full call number | Barcode | Date last seen | Effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 20.04.2025 | 90994 | Cai01.13.13.M.Sc.2024.Na.D. | 01010110090994000 | 20.04.2025 | 20.04.2025 | Thesis |