Mapping Nonsquare and Unevenly Spaced 2-D SLDV Data of an Aircraft Fuselage by Using Spatial DFT-IDFT Techniques
The scanning laser Doppler vibrometry (SLDV) technique provides velocities of a structure at 2-dimensional (2-D) angularly evenly spaced (in the laser scanning sense) data points. This causes an unevenly spaced data point distribution on the surface of the test structure. In many cases evenly spaced...
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| Format: | Article |
| Language: | English |
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Wiley
1996-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.3233/SAV-1996-3207 |
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| author | William Xinzuo Li Larry D. Mitchell Min-Fu Lu Michael L. Neumann |
| author_facet | William Xinzuo Li Larry D. Mitchell Min-Fu Lu Michael L. Neumann |
| author_sort | William Xinzuo Li |
| collection | DOAJ |
| description | The scanning laser Doppler vibrometry (SLDV) technique provides velocities of a structure at 2-dimensional (2-D) angularly evenly spaced (in the laser scanning sense) data points. This causes an unevenly spaced data point distribution on the surface of the test structure. In many cases evenly spaced data point distribution with square or rectangular grids is highly desirable. In this study the SLDV velocity data of a partial surface area of an aircraft fuselage were mapped to truly spatial evenly spaced coordinates by using the spatial DFT-IDFT technique with minimum distortion. This 2-D data mapping technique certainly is not limited to the fuselage, hut can he very useful for many other 3-D structures. |
| format | Article |
| id | doaj-art-1a382cf0f45d4f219baa70a123b5d26f |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 1996-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-1a382cf0f45d4f219baa70a123b5d26f2025-02-03T01:28:01ZengWileyShock and Vibration1070-96221875-92031996-01-013213514010.3233/SAV-1996-3207Mapping Nonsquare and Unevenly Spaced 2-D SLDV Data of an Aircraft Fuselage by Using Spatial DFT-IDFT TechniquesWilliam Xinzuo Li0Larry D. Mitchell1Min-Fu Lu2Michael L. Neumann3Virginia Polytechnic Institute and State University, Department of Mechanical Engineering, Blacksburg, VA 24061-0238, USAVirginia Polytechnic Institute and State University, Department of Mechanical Engineering, Blacksburg, VA 24061-0238, USAVirginia Polytechnic Institute and State University, Department of Mechanical Engineering, Blacksburg, VA 24061-0238, USANewport News Shipbuilding, Newport News, VA 23607, USAThe scanning laser Doppler vibrometry (SLDV) technique provides velocities of a structure at 2-dimensional (2-D) angularly evenly spaced (in the laser scanning sense) data points. This causes an unevenly spaced data point distribution on the surface of the test structure. In many cases evenly spaced data point distribution with square or rectangular grids is highly desirable. In this study the SLDV velocity data of a partial surface area of an aircraft fuselage were mapped to truly spatial evenly spaced coordinates by using the spatial DFT-IDFT technique with minimum distortion. This 2-D data mapping technique certainly is not limited to the fuselage, hut can he very useful for many other 3-D structures.http://dx.doi.org/10.3233/SAV-1996-3207 |
| spellingShingle | William Xinzuo Li Larry D. Mitchell Min-Fu Lu Michael L. Neumann Mapping Nonsquare and Unevenly Spaced 2-D SLDV Data of an Aircraft Fuselage by Using Spatial DFT-IDFT Techniques Shock and Vibration |
| title | Mapping Nonsquare and Unevenly Spaced 2-D SLDV Data of an Aircraft Fuselage by Using Spatial DFT-IDFT Techniques |
| title_full | Mapping Nonsquare and Unevenly Spaced 2-D SLDV Data of an Aircraft Fuselage by Using Spatial DFT-IDFT Techniques |
| title_fullStr | Mapping Nonsquare and Unevenly Spaced 2-D SLDV Data of an Aircraft Fuselage by Using Spatial DFT-IDFT Techniques |
| title_full_unstemmed | Mapping Nonsquare and Unevenly Spaced 2-D SLDV Data of an Aircraft Fuselage by Using Spatial DFT-IDFT Techniques |
| title_short | Mapping Nonsquare and Unevenly Spaced 2-D SLDV Data of an Aircraft Fuselage by Using Spatial DFT-IDFT Techniques |
| title_sort | mapping nonsquare and unevenly spaced 2 d sldv data of an aircraft fuselage by using spatial dft idft techniques |
| url | http://dx.doi.org/10.3233/SAV-1996-3207 |
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