| 发明名称 |
SIMULATION METHOD ON TIME HISTORY RESPONSE, AND PROGRAM AND DEVICE FOR THE SAME |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simulation method on time history response analysis for aeroelastic vibration. Ž<P>SOLUTION: The simulation method on time history response for an elastic vibrator uses a vibration equation containing a vibration displacement component f<SB>aR</SB>and a vibration displacement velocity component f<SB>aI</SB>of unsteady aerodynamic force received by an elastic vibrator as variables. The method performs repeated time history response calculation routine including: a step of calculating an amplitude y<SB>o</SB>at time t from the values of the displacement and displacement velocity of a predetermined site of the elastic vibrator at time t; a step of calculating the values of aerodynamic damping rate δ<SB>a</SB>and circular frequency n from the amplitude y<SB>o</SB>; a step of calculating the vibration displacement velocity component f<SB>aI</SB>from the value of aerodynamic damping rate δ<SB>a</SB>and the vibration displacement component f<SB>aR</SB>from the value of circular frequency n; and a step of calculating the displacement, displacement velocity and acceleration of the predetermined site at time t+Δt by solving the vibration equation to which the values of vibration displacement velocity component f<SB>aI</SB>and vibration displacement component f<SB>aR</SB>are substituted. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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| 申请公布号 |
JP2010112769(A) |
申请公布日期 |
2010.05.20 |
| 申请号 |
JP20080283798 |
申请日期 |
2008.11.05 |
| 申请人 |
KYUSHU INSTITUTE OF TECHNOLOGY |
发明人 |
KUBO YOSHINOBU |
| 分类号 |
G01M9/00;G01M5/00;G01M7/02 |
主分类号 |
G01M9/00 |
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