Damping derivative evaluation in pitch for an ogive at high mach numbers
In this paper, the formulae for damping derivative for an ogive with the suppositions of a curve on the conical nose. The damping derivative in pitch is assessed for a broad scope of the inertia levels and the flow deflection angle. The outcome indicates that there is a progressive increase in the d...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English English |
| Published: |
Blue Eyes Intelligence Engineering & Sciences Publication
2019
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/75365/ http://irep.iium.edu.my/75365/1/75365_Damping%20Derivative%20Evaluation%20in%20Pitch%20for%20an%20Ogive_article.pdf http://irep.iium.edu.my/75365/2/75365_Damping%20Derivative%20Evaluation%20in%20Pitch%20for%20an%20Ogive_scopus.pdf |
| _version_ | 1848788111831597056 |
|---|---|
| author | Shabana, Aysha Monis, Renita Sharon Crasta, Asha Khan, Sher Afghan |
| author_facet | Shabana, Aysha Monis, Renita Sharon Crasta, Asha Khan, Sher Afghan |
| author_sort | Shabana, Aysha |
| building | IIUM Repository |
| collection | Online Access |
| description | In this paper, the formulae for damping derivative for an ogive with the suppositions of a curve on the conical nose. The damping derivative in pitch is assessed for a broad scope of the inertia levels and the flow deflection angle. The outcome indicates that there is a progressive increase in the damping derivative with an increase in the flow deflection angle. When the inertia level is increased from M = 5 to 9, the damping derivative value diminishes, it becomes independent of inertia level, and later any increase in the Mach number does not yield any change in the magnitude of the damping derivatives, and that indicates the attainment of the Mach number independence principle. It is found from the results that when ogive is superimposed, the positive slope is useful, whereas, the negative slope does not yield any useful results, hence must be avoided in the design of the nose part of the aerospace vehicle design. Due to both either positive or negative slope, there is a considerable shift in the Centre of the pressure of the nose, which is right from the dynamic stability point of view. When the slope increased beyond λ > 10, the pressure distribution is such that the magnitude of the damping derivatives attains very peculiar behavior, and this trend is not acceptable. Hence, such a high value of the λ must be avoided. |
| first_indexed | 2025-11-14T17:35:38Z |
| format | Article |
| id | iium-75365 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:35:38Z |
| publishDate | 2019 |
| publisher | Blue Eyes Intelligence Engineering & Sciences Publication |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-753652020-04-16T06:46:08Z http://irep.iium.edu.my/75365/ Damping derivative evaluation in pitch for an ogive at high mach numbers Shabana, Aysha Monis, Renita Sharon Crasta, Asha Khan, Sher Afghan QA300 Analysis In this paper, the formulae for damping derivative for an ogive with the suppositions of a curve on the conical nose. The damping derivative in pitch is assessed for a broad scope of the inertia levels and the flow deflection angle. The outcome indicates that there is a progressive increase in the damping derivative with an increase in the flow deflection angle. When the inertia level is increased from M = 5 to 9, the damping derivative value diminishes, it becomes independent of inertia level, and later any increase in the Mach number does not yield any change in the magnitude of the damping derivatives, and that indicates the attainment of the Mach number independence principle. It is found from the results that when ogive is superimposed, the positive slope is useful, whereas, the negative slope does not yield any useful results, hence must be avoided in the design of the nose part of the aerospace vehicle design. Due to both either positive or negative slope, there is a considerable shift in the Centre of the pressure of the nose, which is right from the dynamic stability point of view. When the slope increased beyond λ > 10, the pressure distribution is such that the magnitude of the damping derivatives attains very peculiar behavior, and this trend is not acceptable. Hence, such a high value of the λ must be avoided. Blue Eyes Intelligence Engineering & Sciences Publication 2019-10 Article PeerReviewed application/pdf en http://irep.iium.edu.my/75365/1/75365_Damping%20Derivative%20Evaluation%20in%20Pitch%20for%20an%20Ogive_article.pdf application/pdf en http://irep.iium.edu.my/75365/2/75365_Damping%20Derivative%20Evaluation%20in%20Pitch%20for%20an%20Ogive_scopus.pdf Shabana, Aysha and Monis, Renita Sharon and Crasta, Asha and Khan, Sher Afghan (2019) Damping derivative evaluation in pitch for an ogive at high mach numbers. International Journal of Innovative Technology and Exploring Engineering (IJITEE), 8 (12). pp. 1307-1317. E-ISSN 2278-3075 https://www.ijitee.org/wp-content/uploads/papers/v8i12/L39831081219.pdf 10.35940/ijitee.L3918.1081219 |
| spellingShingle | QA300 Analysis Shabana, Aysha Monis, Renita Sharon Crasta, Asha Khan, Sher Afghan Damping derivative evaluation in pitch for an ogive at high mach numbers |
| title | Damping derivative evaluation in pitch for an ogive at high mach numbers |
| title_full | Damping derivative evaluation in pitch for an ogive at high mach numbers |
| title_fullStr | Damping derivative evaluation in pitch for an ogive at high mach numbers |
| title_full_unstemmed | Damping derivative evaluation in pitch for an ogive at high mach numbers |
| title_short | Damping derivative evaluation in pitch for an ogive at high mach numbers |
| title_sort | damping derivative evaluation in pitch for an ogive at high mach numbers |
| topic | QA300 Analysis |
| url | http://irep.iium.edu.my/75365/ http://irep.iium.edu.my/75365/ http://irep.iium.edu.my/75365/ http://irep.iium.edu.my/75365/1/75365_Damping%20Derivative%20Evaluation%20in%20Pitch%20for%20an%20Ogive_article.pdf http://irep.iium.edu.my/75365/2/75365_Damping%20Derivative%20Evaluation%20in%20Pitch%20for%20an%20Ogive_scopus.pdf |