Wind tunnel dynamic flying study of the pitching movement derivatives of the standard dynamics model in active control AIAA-87-2626

Balakrishna, S and Niranjana, T (1987) Wind tunnel dynamic flying study of the pitching movement derivatives of the standard dynamics model in active control AIAA-87-2626. In: AIAA atmospheric flight mechanics conference.

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    Abstract

    This p;lpcr prcscnts tlic rcbults of a dynamic wind13; tunncl flying study of the pitching nioriicrit cocfficients of13; thc Standard Dynamics Modcl as a function of angle of13; attach ranging from about -10 dcg to +30 dcgrces. T l c13; f u l l y instrunicntcd modcl with its scrvocd clcvator has13; hccn flown in 3 singlc pitch dcgrcc of frccdom at low13; spccds undcr nionicnt trim SL iditions covcring both the13; stablc CG locations ol' 19.2% ,254 and the unstablc CG13; location of 35% of thc nican aerodynamic chord. I n the13; unstablc casc an actibc control law, has becn invoked to fly13; thc modcl in an anglc of at!ack control mode . Thc frccly13; flying modcl has bcen disturbed with flight tcst likc inputs13; and the rcLponscs have bccn analyscd to gcncratc the13; a e rod y na ni i c pitching monicn t coc f f icc n t s using max i mu ni13; likclihood estimation proccdurc. The analysis includcs rhc13; closed loop active controlled systcin paranictcr estimation13; and thc results are compared with the available S3hl13; pitching monicnt d a t a .

    Item Type: Conference or Workshop Item (Paper)
    Uncontrolled Keywords: Dynamic wind tunnel
    Subjects: AERONAUTICS > Aircraft Design, Testing & Performance
    Division/Department: Systems Engineering Division, Systems Engineering Division
    Depositing User: Mrs Manoranjitha M D
    Date Deposited: 07 Mar 2006
    Last Modified: 24 May 2010 09:40
    URI: http://nal-ir.nal.res.in/id/eprint/1073

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