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JonswapSpectrum.h

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00001 /* ****************************************************************** **
00002 **    OpenSees - Open System for Earthquake Engineering Simulation    **
00003 **          Pacific Earthquake Engineering Research Center            **
00004 **                                                                    **
00005 **                                                                    **
00006 ** (C) Copyright 2001, The Regents of the University of California    **
00007 ** All Rights Reserved.                                               **
00008 **                                                                    **
00009 ** Commercial use of this program without express permission of the   **
00010 ** University of California, Berkeley, is strictly prohibited.  See   **
00011 ** file 'COPYRIGHT'  in main directory for information on usage and   **
00012 ** redistribution,  and for a DISCLAIMER OF ALL WARRANTIES.           **
00013 **                                                                    **
00014 ** Developed by:                                                      **
00015 **   Frank McKenna (fmckenna@ce.berkeley.edu)                         **
00016 **   Gregory L. Fenves (fenves@ce.berkeley.edu)                       **
00017 **   Filip C. Filippou (filippou@ce.berkeley.edu)                     **
00018 **                                                                    **
00019 ** Reliability module developed by:                                   **
00020 **   Terje Haukaas (haukaas@ce.berkeley.edu)                          **
00021 **   Armen Der Kiureghian (adk@ce.berkeley.edu)                       **
00022 **                                                                    **
00023 ** ****************************************************************** */
00024                                                                         
00025 // $Revision: 1.1 $
00026 // $Date: 2003/03/04 00:44:51 $
00027 // $Source: /usr/local/cvs/OpenSees/SRC/reliability/domain/spectrum/JonswapSpectrum.h,v $
00028 
00029 
00030 //
00031 // Written by Terje Haukaas (haukaas@ce.berkeley.edu)
00032 //
00033 
00034 #ifndef JonswapSpectrum_h
00035 #define JonswapSpectrum_h
00036 
00037 #include <Spectrum.h>
00038 
00039 class JonswapSpectrum : public Spectrum
00040 {
00041 
00042 public:
00043         JonswapSpectrum(int tag, double minFreq, double maxFreq,
00044                                                          double alpha, double wp, double gamma);
00045         ~JonswapSpectrum();
00046 
00047         void Print(OPS_Stream &s, int flag =0);
00048 
00049         double getMinFrequency();
00050         double getMaxFrequency();
00051         double getAmplitude(double frequency);
00052 
00053 
00054 protected:
00055 
00056 private:
00057         double minFreq;
00058         double maxFreq;
00059         double alpha;
00060         double wp;
00061         double gamma;
00062 };
00063 
00064 #endif

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