Improving dynamic and aeroelastic performance of helicopter rotors using periodic design and piezo active control / (Record no. 67240)
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| 000 -LEADER | |
|---|---|
| fixed length control field | 02501cam a2200337 a 4500 |
| 003 - CONTROL NUMBER IDENTIFIER | |
| control field | EG-GiCUC |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20250223032037.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 180902s2018 ua dh f m 000 0 eng d |
| 040 ## - CATALOGING SOURCE | |
| Original cataloging agency | EG-GiCUC |
| Language of cataloging | eng |
| Transcribing agency | EG-GiCUC |
| 041 0# - LANGUAGE CODE | |
| Language code of text/sound track or separate title | eng |
| 049 ## - LOCAL HOLDINGS (OCLC) | |
| Holding library | Deposite |
| 097 ## - Thesis Degree | |
| Thesis Level | Ph.D |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | Cai01.13.01.Ph.D.2018.Ho.I |
| 100 0# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Hossam Taha Abdelaziz Ahmed Badran |
| 245 10 - TITLE STATEMENT | |
| Title | Improving dynamic and aeroelastic performance of helicopter rotors using periodic design and piezo active control / |
| Statement of responsibility, etc. | Hossam Taha Abdelaziz Ahmed Badran ; Supervised Hani M. Negm , Mohammad Tawfik |
| 246 15 - VARYING FORM OF TITLE | |
| Title proper/short title | تحسين الأداء الدينامى و المرونة الهوائية لدوار الهليكوبتر باستخدام التصميم الدوري و التحكم التلقائى بالمواد الكهربية الإجهادية |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Cairo : |
| Name of publisher, distributor, etc. | Hossam Taha Abdelaziz Ahmed Badran , |
| Date of publication, distribution, etc. | 2018 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 127 P. : |
| Other physical details | charts , facsimiles ; |
| Dimensions | 30cm |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Aerospace Engineering |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | In the present study, we improve the vibration characteristics of sandwich helicopter rotor blades with periodic changes in the core material. This technique preserves the external geometry of the rotor blades to keep their aerodynamic characteristics.Since the construction and air velocity change along the rotor blade, we use the finite element technique in its dynamical and aeroelastic analyses. Theodorsen's 2-D thin airfoil theory with a lift deficiency function is used in the unsteady aerodynamic analysis, with a correction which takes into consideration that each blade falls in the wake of the preceding blade. Results of the analyses show significant improvement in the dynamic response and flutter speeds of helicopter rotors in both hovering and forward flight, as a result of using the periodic design technique of the blades. Introducing piezoelectric smart material in the core design of the blades together with active automatic control is shown to further improve the dynamic characteristics of the helicopter rotor |
| 530 ## - ADDITIONAL PHYSICAL FORM AVAILABLE NOTE | |
| Additional physical form available note | Issued also as CD |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Helicopter rotors |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Periodic design |
| 653 #4 - INDEX TERM--UNCONTROLLED | |
| Uncontrolled term | Vibration attenuation |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Hani Mohammad Elmorsy Negm , |
| Relator term | |
| 700 0# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Mohammad Tawfik Aboelsooud , |
| Relator term | |
| 856 ## - ELECTRONIC LOCATION AND ACCESS | |
| Uniform Resource Identifier | <a href="http://172.23.153.220/th.pdf">http://172.23.153.220/th.pdf</a> |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Enas |
| Reviser | Cataloger |
| 905 ## - LOCAL DATA ELEMENT E, LDE (RLIN) | |
| Cataloger | Nazla |
| Reviser | Revisor |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Source of classification or shelving scheme | Dewey Decimal Classification |
| Koha item type | Thesis |
| Source of classification or shelving scheme | Not for loan | Home library | Current library | Date acquired | Full call number | Barcode | Date last seen | Koha item type | Copy number |
|---|---|---|---|---|---|---|---|---|---|
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | قاعة الرسائل الجامعية - الدور الاول | 11.02.2024 | Cai01.13.01.Ph.D.2018.Ho.I | 01010110075428000 | 22.09.2023 | Thesis | ||
| Dewey Decimal Classification | المكتبة المركزبة الجديدة - جامعة القاهرة | مخـــزن الرســائل الجـــامعية - البدروم | 11.02.2024 | Cai01.13.01.Ph.D.2018.Ho.I | 01020110075428000 | 22.09.2023 | CD - Rom | 75428.CD |