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plotVT.m
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plotVT.m
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%*************************************************************************
% The source code contained herein was developed for Embry-Riddle
% Aeronautical University by Glenn P. Greiner, Professor and Jafar
% Mohammed, Student Assistant of the Aerospace Engineering Department,
% Daytona Beach Campus. Copyright 2008. All rights reserved.
% Although due care has been taken to present accurate programs this
% software is provided "as is" WITHOUT WARRANTY OF ANY KIND, EITHER
% EXPRESSED OR IMPLIED, AND EXPLICITLY EXCLUDING ANY IMPLIED WARRANTIES
% OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. The entire risk as
% to the quality and performance of the software is with the user. The
% program is made available only for education and personal research. It
% may not be sold to other parties. If you copy some or all of the
% software you are requested to return a copy of any source additions that
% you believe make a significant improvement in its range of application.
%*************************************************************************
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% datcom3d Version 1.2 %%
% March 10, 2008 %%
% File: plotVT.m %%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Please refer to plotWing.m for details of this code
% Special parameter VERTUP:
% If VERTUP = 1, then vertical tail is above centerline
% If VERTUP = 0, then vertical tail is below centerline
% Special parameter YV:
% YV = distance from fuselage reference line to vertex of VT
function plotVT(XV,YV,ZV,CHRDR_VT,CHRDBP_VT,CHRDTP_VT,SSPN_VT,SSPNOP_VT,SAVSI_VT,SAVSO_VT,CHSTAT_VT,VERTUP,TC_VT,wgres)
if SSPNOP_VT == 0
AR_vt=2*(SSPN_VT*2)/(CHRDR_VT+CHRDTP_VT);
TR_vt=CHRDTP_VT/CHRDR_VT;
X_vt=[];
Y_vt=[];
Z_vt=[];
sweep = atand(tand(SAVSI_VT)-(4*(0-CHSTAT_VT)*(1-TR_vt))/(AR_vt*(1+TR_vt)));
for i=1:1:(wgres+1)
sw=(i-1)*SSPN_VT/wgres*tand(sweep);
for j=1:1:(wgres+1)
X_vt(i,j) = (((j-1)*CHRDR_VT/wgres)*(1-(i-1)*TR_vt/(wgres*TR_vt/(1-TR_vt))))+sw;
Z_vt(j,i) = (j-1)*SSPN_VT/wgres;
end
end
for i=1:1:(wgres+1)
for j=1:1:(wgres+1)
c=X_vt(j,wgres+1)-X_vt(j,1);
xval=X_vt(j,i)-X_vt(j,1);
Y_vt(j,i)=TC_VT*5*c*(0.2969.*(xval/c).^0.5-0.126.*(xval/c)-...
0.3516.*(xval/c).^2+0.2843.*(xval/c).^3-0.1015.*(xval/c).^4);
end
end
if VERTUP > 0
surf(X_vt+XV,Y_vt+YV,Z_vt+ZV,'EdgeColor','k','DisplayName','VT Stb.')
surf(X_vt+XV,-1.*Y_vt+YV,Z_vt+ZV,'EdgeColor','k','DisplayName','VT Port')
else
surf(X_vt+XV,Y_vt+YV,-1*Z_vt+ZV,'EdgeColor','k','DisplayName','VT Stb.')
surf(X_vt+XV,-1.*Y_vt+YV,-1*Z_vt+ZV,'EdgeColor','k','DisplayName','VT Port')
end
else
wgreso=int32(SSPNOP_VT/SSPN_VT*wgres);
wgresi=wgres-wgreso;
ARi_vt=2*((SSPN_VT-SSPNOP_VT)*2)/(CHRDR_VT+CHRDBP_VT);
ARo_vt=2*(SSPNOP_VT*2)/(CHRDBP_VT+CHRDTP_VT);
TRi_vt=CHRDBP_VT/CHRDR_VT;
TRo_vt=CHRDTP_VT/CHRDBP_VT;
Xi_vt=[];
Xo_vt=[];
Yi_vt=[];
Yo_vt=[];
Zi_vt=[];
Zo_vt=[];
sweepi = atand(tand(SAVSI_VT)-(4*(0-CHSTAT_VT)*(1-TRi_vt))/(ARi_vt*(1+TRi_vt)));
sweepo = atand(tand(SAVSO_VT)-(4*(0-CHSTAT_VT)*(1-TRo_vt))/(ARo_vt*(1+TRo_vt)));
for i=1:1:(wgres+1)
sw=(i-1)*(SSPN_VT-SSPNOP_VT)/wgres*tand(sweepi);
for j=1:1:(wgres+1)
Xi_vt(i,j) = (((j-1)*CHRDR_VT/wgres)*(1-(i-1)*TRi_vt/(wgres*TRi_vt/(1-TRi_vt))))+sw;
Zi_vt(j,i) = (j-1)*(SSPN_VT-SSPNOP_VT)/wgres;
end
end
for i=1:1:(wgres+1)
for j=1:1:(wgres+1)
c=Xi_vt(j,wgres+1)-Xi_vt(j,1);
xval=Xi_vt(j,i)-Xi_vt(j,1);
Yi_vt(j,i)=TC_VT*5*c*(0.2969.*(xval/c).^0.5-0.126.*(xval/c)-...
0.3516.*(xval/c).^2+0.2843.*(xval/c).^3-0.1015.*(xval/c).^4);
end
end
for i=1:1:(wgres+1)
sw=(i-1)*(SSPNOP_VT)/wgres*tand(sweepo);
for j=1:1:(wgres+1)
Xo_vt(i,j) = (((j-1)*CHRDBP_VT/wgres)*(1-(i-1)*TRo_vt/(wgres*TRo_vt/(1-TRo_vt))))+sw+Xi_vt(wgres+1,1);
Zo_vt(j,i) = (j-1)*(SSPNOP_VT)/wgres + (SSPN_VT-SSPNOP_VT);
end
end
for i=1:1:(wgres+1)
for j=1:1:(wgres+1)
c=Xo_vt(j,wgres+1)-Xo_vt(j,1);
xval=Xo_vt(j,i)-Xo_vt(j,1);
Yo_vt(j,i)=TC_VT*5*c*(0.2969.*(xval/c).^0.5-0.126.*(xval/c)-...
0.3516.*(xval/c).^2+0.2843.*(xval/c).^3-0.1015.*(xval/c).^4);
end
end
if VERTUP > 0
surf(Xi_vt+XV,Yi_vt+YV,Zi_vt+ZV,'EdgeColor','k','DisplayName','VT In. Stb.')
surf(Xi_vt+XV,-1.*Yi_vt+YV,Zi_vt+ZV,'EdgeColor','k','DisplayName','VT In. Port')
surf(Xo_vt+XV,Yo_vt+YV,Zo_vt+ZV,'EdgeColor','k','DisplayName','VT Out. Stb.')
surf(Xo_vt+XV,-1.*Yo_vt+YV,Zo_vt+ZV,'EdgeColor','k','DisplayName','VT Out. Port')
else
surf(Xi_vt+XV,Yi_vt+YV,-1*Zi_vt+ZV,'EdgeColor','k','DisplayName','VT In. Stb.')
surf(Xi_vt+XV,-1.*Yi_vt+YV,-1*Zi_vt+ZV,'EdgeColor','k','DisplayName','VT In. Port')
surf(Xo_vt+XV,Yo_vt+YV,-1*Zo_vt+ZV,'EdgeColor','k','DisplayName','VT Out. Stb.')
surf(Xo_vt+XV,-1.*Yo_vt+YV,-1*Zo_vt+ZV,'EdgeColor','k','DisplayName','VT Out. Port')
end
end