A Improved Control System Using Digital Technology For A Wind Tunnel Forced – Oscillation Rig.
IR@NAL: CSIR-National Aerospace Laboratories, Bangalore
View Archive Info| Field | Value | |
| Title |
A Improved Control System Using Digital Technology For A Wind Tunnel Forced – Oscillation Rig.
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| Creator |
Prasada Rao, K
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| Subject |
Aeronautics (General)
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| Description |
A Improved Control System For A Forced-Oscillation Rig For Measurement Of Pitch/Yaw Damping Derivatives In The NAL 1 .2m Derivatives Wind Tunnel Has Bee Designed And Developed. The Basic Principles Of The System Are Similar To Those Of A Existing Control System Developed For The Same Forced-Oscillation Rig. The Present System In Corporate Certain Features Such As The Use Of Digital Techniques For Fine Tuning And Automatic Switching Of Phase Tracking Control From Closed-Loop To Open-Loop Mode Operation . These Features Facilitate Testing. Even When The Model Is Subject, To Relatively Large Random Disturbances Due Either To Large Flow U Steadiness A D/Or Separated Flow Over Model Occurring At High Incidences. Performance Of The Control System Was Evaluated Initially In Bench Tests .The System Was Later Successfully Employed For Pitch-Damping Measurements at Mach Numbers up To 3 .T3 In The NAL 1 .2 Transonic Blowdown Tunnel.
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| Publisher |
NAL
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| Date |
1991-06
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| Type |
Proj.Doc/Technical Report
NonPeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://nal-ir.nal.res.in/10907/1/PD_EA_9110.pdf
Prasada Rao, K (1991) A Improved Control System Using Digital Technology For A Wind Tunnel Forced – Oscillation Rig. Technical Report. NAL, Bangalore. |
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| Relation |
http://nal-ir.nal.res.in/10907/
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