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66 Adams/Solver a b c IMPACT IMPACT is a simple model for contacts. It evaluates a force that turns on when a distance falls below a nominal free length (that is, when two parts collide). Use ( h0 + h1) = --------------------- 2 Called By Any user-written subroutine Prerequisite None ( h1 – h0) = --------------------- 2 ( x – x0) = --------------------- ( x1 – x0) HAVSIN h0 ; x ≤x0 a b c π π ⎧ ⎫ ⎪ ⎪ ⎪ ⎛ ⋅ – --⎞ ⎪ = ⎨ + ⋅sin ; x ⎝ 2⎠ 0 < x < x2⎬ ⎪ ⎪ ⎪ ⎩ h2 ; x ≥ x ⎪ 1 ⎭ Caution: • The value x1 must not equal x0. Equal values of x1 and x0 imply a sharp step, which HAVSIN cannot fit. • At x0 and x1, the second derivatives of the haversine function do not match the second derivatives of the constant regions. This discontinuity increases as the values for x1 and x0 become closer (that is, as the haversine becomes sharper). Because of the discontinuity, integration problems can arise if the haversine is sharp. • The STEP general subroutine (see STEP) is an alternative to HAVSIN.
Calling Sequence CALL IMPACT (x, x', x1, k, e, cmax, d, iord, vector, errflg) Welcome to Adams/Solver Subroutines 67
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Welcome to Adams/Solver Subroutines
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Compilers and Linkers Welcome to Ad
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Utility Subroutines About Utility S
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Subroutine: Does the following: Uns
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Input Arguments Welcome to Adams/So
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RETURN END AKISPL Welcome to Adams/
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Page 21 and 22: Use Called By Any user-written subr
Page 23 and 24: T1( x - x0) = x - x0 CUBSPL , Welco
Page 25 and 26: Output Arguments Extended Definitio
Page 27 and 28: Extended Definition Welcome to Adam
Page 29 and 30: Input Arguments Output Arguments We
Page 31 and 32: Input Arguments Output Arguments Ex
Page 33 and 34: Input Arguments Welcome to Adams/So
Page 35 and 36: Use Welcome to Adams/Solver Subrout
Page 37 and 38: GETCPU retrieves CPU time used so f
Page 39 and 40: GETMOD returns the current analysis
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Page 43 and 44: Prerequisite Welcome to Adams/Solve
Page 49 and 50: C C Inputs: C INTEGER ID C C Output
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Page 57 and 58: C = [-A-1B] Welcome to Adams/Solver
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Page 61 and 62: Prerequisite STRING statement in da
Page 63 and 64: Prerequisites None Calling Sequence
Page 65: function. Welcome to Adams/Solver S
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Page 71 and 72: Input Argument Welcome to Adams/Sol
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Page 77 and 78: Use Called By SPLINE_READ Calling S
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Page 85 and 86: Callng Sequence CALL SHF (x, x0, a,
Page 89 and 90: Calling Sequence CALL STEP5 (x, x0,
Page 103 and 104: C INTEGER IPAR(2), N_UVX, N_UVY, N_
Page 105 and 106: CALL NMODES(FBDYID,NQ,ERRFLG) STRIN
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Page 113 and 114: Examples Welcome to Adams/Solver Su
Page 115 and 116: SUBROUTINE SFOSUB (ID, TIME, PAR, N
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DO 100 J = 1 , 6 DFDDIS(I,J)=0.D0 D
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Use Called By Any user-written subr
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User-Written Subroutines Welcome to
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C - Evaluate Normal Force component
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Output Arguments Welcome to Adams/S
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C X rotational field torque C ... F
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}; int NPAR; const double* PAR; int
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Using the DFLAG Variable Welcome to
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C RESULT(2) = ... RESULT(3) = ... R
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GSE_UPDATE Calling Sequence Welcome
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Use Corresponding Statement Welcome
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Output Arguments scale A double-pre
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Use Corresponding Command Calling S
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C ENDIF C C - Create request inform
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* * SENSOR struct sAdamsSensorEval
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FORTRAN - Prototype Welcome to Adam
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C C C C C C C C C C C C C C VALUES(
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C - Derivatives of prior first deri
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C C - Subroutine initialization ---
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*/ struct sAdamsVforce { int ID; in
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FORTRAN - Prototype Welcome to Adam
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Examples For an example of this sub
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