Krishnan, V and Kangovi, S and Yajnik, KS and Balasubramaniam, R (1978) Design of a balance for NAL base flow facility. Technical Report. National Aeronautical Laboratory, Bangalore, India.
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Abstract
This report describes the methodology of designinq a strain gage balance, which is an important,component of the13; proposed special-purpose base flow facility meant for aftbody studies. General design requirements of a balance are first reviewed. A method is then given for calculating loads acting on the balance for a given model configuration. A survey has also been made to assess available materials for balance fabrication and methods of axial force measurement. An internal strain gage balance of 25 rom diameter and 200 rom length was designed based on these design inputs to measure a maximum axial load of 60 Kg in the presence of other loads and moments. The balance was optimised to provide an output of 260 micros trains at the maximum axial load with a resolution of 0.5% of full load. The use of aluminium alloy as an alternative to steel for balance fabrication to measure small 1021s is also examined in this report.
| Item Type: | Proj.Doc/Technical Report (Technical Report) |
|---|---|
| Uncontrolled Keywords: | Axicial force unit;Cage section |
| Subjects: | AERONAUTICS > Aircraft Design, Testing & Performance |
| Division/Department: | Aerodynamics, Aerodynamics, Aerodynamics, Aerodynamics |
| Depositing User: | M/S ICAST NAL |
| Date Deposited: | 25 Aug 2006 |
| Last Modified: | 24 May 2010 09:49 |
| URI: | http://nal-ir.nal.res.in/id/eprint/2576 |
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