A Computerized Method for Calculating Flutter Characteristics of a System Characterized by Two Degrees of Freedom1979 - 52 pages |
Common terms and phrases
1/K with g Actual g Airfoil calculate flutter frequency CC SOLVE center of mass center of pressure COMMON BLK1 Condition for g DATA FOR SAMPLE DDDDDD degrees of freedom differential segment distributed mass DIVERGENCE SPEED elastic axis FLUTTER CHARACTERISTICS Flutter Condition flutter speed Fortran frequency and flutter FUNCTION FX IMAGINARY EQUATIONS in./sec in² INPUT DATA INTERSECT WHEN SQUARE Langley Research Center lift coefficient m/sec mode shape NAM1 NAM2 Namelist NASA Langley Research OUTPUT DATA PARTIAL PROGRAM LISTING Performing Organization PROBLEM CONT'D q₁ quadratic formula rad./sec RCROSS Real and Complex REAL AND IMAGINARY Research Center VSTOL RMULL WITH FUNCTION root locus analysis ROOTS OF FLUTTER SAMPLE PROBLEM CONT Solution Method SOLVE FOR AA SQRTX3 SQUARE ROOT strain energy Structural Damping values of 1/K VSTOL WALPH X2 S X3 X2 SOLVE