cartpend_check_m

# cartpend_check_m - Sheet1 Page 1 function cartpend_check

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Unformatted text preview: Sheet1 Page 1 function cartpend_check SolveOrdinaryDifferentialEquations % File cartpend_check.m created by Autolev 4.1 on Sun Nov 23 22:44:08 2008 %=========================================================================== function VAR = ReadUserInput global c c1 c2 g h IB k1 k2 MA MB FC TC global q1 q2 u1 u2 WCHECK1 global FA TAB q1p q2p u1p u2p WCHECK1p Check_AB L_AB_N1 NRG_AB global DEGtoRAD RADtoDEG global TINITIAL TFINAL INTEGSTP PRINTINT ABSERR RELERR %-------------------------------+--------------------------+-------------------+----------------- % Quantity | Value | Units | Description %-------------------------------|--------------------------|-------------------|----------------- c = c1 = c2 = g = 9.8 h = 0.5 IB = 0.5 k1 = 1 k2 = 2 MA = 5 MB = 2 FC = TC = q1 = q2 = 3 u1 = 0.5 u2 = WCHECK1 = 0.0 TINITIAL = TFINAL = 50 INTEGSTP = 0.1 PRINTINT = 1 ABSERR = 1.0E-08 RELERR = 1.0E-08 %-------------------------------+--------------------------+-------------------+----------------- % Unit conversions Pi = 3.141592653589793 DEGtoRAD = Pi/180.0 RADtoDEG = 180.0/Pi q2 = q2*DEGtoRAD % Evaluate constants % Set the initial values of the states VAR(1) = q1 Sheet1 Page 2 VAR(2) = q2 VAR(3) = u1 VAR(4) = u2 VAR(5) = WCHECK1 %=========================================================================== function OpenOutputFilesAndWriteHeadings FileIdentifier = fopen('cartpend_check.1', 'wt') fprintf( 1, '%% t q1 q2\n' ) fprintf( 1, '%% (s) (m) (deg)\n\n' ) fprintf(FileIdentifier, '%% FILE: cartpend_check.1\n%%\n' ) fprintf(FileIdentifier, '%% t q1 q2\n' ) fprintf(FileIdentifier, '%% (s) (m) (deg)\n\n' ) FileIdentifier = fopen('cartpend_check.2', 'wt') fprintf(FileIdentifier, '%% FILE: cartpend_check.2\n%%\n' ) fprintf(FileIdentifier, '%% t L_AB_N1 NRG_AB Check_AB\n' ) fprintf(FileIdentifier, '%% (s) (UNITS) (UNITS) (UNITS)\n\n' ) %=========================================================================== % Main driver loop for numerical integration of differential equations %=========================================================================== function SolveOrdinaryDifferentialEquations global c c1 c2 g h IB k1 k2 MA MB FC TC global q1 q2 u1 u2 WCHECK1 global FA TAB q1p q2p u1p u2p WCHECK1p Check_AB L_AB_N1 NRG_AB...
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## cartpend_check_m - Sheet1 Page 1 function cartpend_check

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