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A New Algorithm for Extracting Aerodynamic Coefficients from Free flight Data(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
1997年04期
Page:
37-40
Research Field:
Publishing date:

Info

Title:
A New Algorithm for Extracting Aerodynamic Coefficients from Free flight Data
Author(s):
Li Yingjiu Zeng Shilun Yi Wenjun
School of Dynamic Engineering, NUST, Nanjing 210094
Keywords:
aerodynamic co ef ficient s data reduction interation algorithm
PACS:
TJ431.2
DOI:
-
Abstract:
T his paper proposes a new alg orithm fo r ext racting aerodynamic coeff icient s fr om f ree-flight data: improved Mar quardt algo rithm. Mar quardt algo rithm is a rather go od data reductio n alg orithm. It combines the advantag es of Chapmann-Kirk alg orithm and the steepest descent algo rithm, and avo ids their defect s. The improved Marquardt algor ithm no t only inher it s the advantages of Marquar dt alg orithm, but also much mo re decreases the computat ion t ime . It is a quicker convergence inter at ion algor ithm than Marquar dt alg orithm. The applicat ion of this improved alg orithm to data reduct ion in aeroballist ic rang e is presented.

References:

1 Bra dlay W James. Finlie : A for tr an pr og ram for fitting o rdinar y differ ent ial equatio ns with nonlinear par ameter s to data. AD-A098 038, 1981
2 Fischer Ma rk, Hathaw ay Wayne. Aero ballistic r esea rch fa cility data ana ly sis system ( ARFDAS). AD-A204 308, 1989
3 Whyte H Robert , Hathaw ay H Wayne . Aer oballist ic rang e dat a reduct ion technique utilizing numer ical integ eration. AD-98-987, 1974
4 Chapmann T G, Kir k B D. A metho d fo r ex tr acting aer odynamic co efficients from freeflight da ta. AIAA Jounal, 1970, 8( 4) : 753~758
5 金达根, 任国民, 苏根良. 实验外弹道学. 北京: 兵器工业出版社, 1991. 13~181
6 宋丕极. 枪炮与火箭外弹道学. 北京: 兵器工业出版社, 1993. 67~95
7 袁亚湘. 非线性规划数值方法. 上海: 上海科学技术出版社, 1993. 23~57

Memo

Memo:
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Last Update: 2013-03-29