You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- USA or view http://www.gnu.org/copyleft/gpl.html.
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
**********************************************************************/
#include <simgear/compiler.h>
#include "uiuc_engine.h"
-#if !defined (SG_HAVE_NATIVE_SGI_COMPILERS)
-SG_USING_STD(cerr);
-#endif
-
void uiuc_engine()
{
stack command_list;
string linetoken1;
string linetoken2;
+ if (outside_control == false)
+ pilot_throttle_no = false;
if (Throttle_pct_input)
{
double Throttle_pct_input_endTime = Throttle_pct_input_timeArray[Throttle_pct_input_ntime];
Throttle_pct_input_dTArray,
Throttle_pct_input_ntime,
time);
+ pilot_throttle_no = true;
}
}
case simpleSingle_flag:
{
F_X_engine = Throttle[3] * simpleSingleMaxThrust;
+ F_Y_engine = 0.0;
+ F_Z_engine = 0.0;
+ M_l_engine = 0.0;
+ M_m_engine = 0.0;
+ M_n_engine = 0.0;
break;
}
+ case simpleSingleModel_flag:
+ {
+ /* simple model based on Hepperle's equation
+ * exponent dtdvvt was computed in uiuc_menu.cpp */
+ F_X_engine = Throttle[3] * t_v0 * (1 - pow((V_rel_wind/v_t0),dtdvvt));
+ F_Y_engine = 0.0;
+ F_Z_engine = 0.0;
+ M_l_engine = 0.0;
+ M_m_engine = 0.0;
+ M_n_engine = 0.0;
+ if (b_slipstreamEffects) {
+ tc = F_X_engine/(Dynamic_pressure * LS_PI * propDia * propDia / 4);
+ w_induced = 0.5 * V_rel_wind * (-1 + pow((1+tc),.5));
+ eta_q = (2* w_induced + V_rel_wind)*(2* w_induced + V_rel_wind)/(V_rel_wind * V_rel_wind);
+ /* add in a die-off function so that eta falls off w/ alfa and beta */
+ eta_q = Cos_alpha * Cos_alpha * Cos_beta * Cos_beta * eta_q;
+ /* determine the eta_q values for the respective coefficients */
+ if (eta_q_Cm_q_fac) {eta_q_Cm_q *= eta_q * eta_q_Cm_q_fac;}
+ if (eta_q_Cm_adot_fac) {eta_q_Cm_adot *= eta_q * eta_q_Cm_adot_fac;}
+ if (eta_q_Cmfade_fac) {eta_q_Cmfade *= eta_q * eta_q_Cmfade_fac;}
+ if (eta_q_Cm_de_fac) {eta_q_Cm_de *= eta_q * eta_q_Cm_de_fac;}
+ if (eta_q_Cl_beta_fac) {eta_q_Cl_beta *= eta_q * eta_q_Cl_beta_fac;}
+ if (eta_q_Cl_p_fac) {eta_q_Cl_p *= eta_q * eta_q_Cl_p_fac;}
+ if (eta_q_Cl_r_fac) {eta_q_Cl_r *= eta_q * eta_q_Cl_r_fac;}
+ if (eta_q_Cl_dr_fac) {eta_q_Cl_dr *= eta_q * eta_q_Cl_dr_fac;}
+ if (eta_q_CY_beta_fac) {eta_q_CY_beta *= eta_q * eta_q_CY_beta_fac;}
+ if (eta_q_CY_p_fac) {eta_q_CY_p *= eta_q * eta_q_CY_p_fac;}
+ if (eta_q_CY_r_fac) {eta_q_CY_r *= eta_q * eta_q_CY_r_fac;}
+ if (eta_q_CY_dr_fac) {eta_q_CY_dr *= eta_q * eta_q_CY_dr_fac;}
+ if (eta_q_Cn_beta_fac) {eta_q_Cn_beta *= eta_q * eta_q_Cn_beta_fac;}
+ if (eta_q_Cn_p_fac) {eta_q_Cn_p *= eta_q * eta_q_Cn_p_fac;}
+ if (eta_q_Cn_r_fac) {eta_q_Cn_r *= eta_q * eta_q_Cn_r_fac;}
+ if (eta_q_Cn_dr_fac) {eta_q_Cn_dr *= eta_q * eta_q_Cn_dr_fac;}
+ }
+ /* Need engineOmega for gyroscopic moments */
+ engineOmega = minOmega + Throttle[3] * (maxOmega - minOmega);
+ break;
+ }
case c172_flag:
{
//c172 engine lines ... looks like 0.83 is just a thrust increase
F_Z_engine = 0.0;
break;
}
+ case forcemom_flag:
+ {
+ double Xp_input_endTime = Xp_input_timeArray[Xp_input_ntime];
+ if (Simtime >= Xp_input_startTime &&
+ Simtime <= (Xp_input_startTime + Xp_input_endTime))
+ {
+ double time = Simtime - Xp_input_startTime;
+ F_X_engine = uiuc_1Dinterpolation(Xp_input_timeArray,
+ Xp_input_XpArray,
+ Xp_input_ntime,
+ time);
+ }
+ double Zp_input_endTime = Zp_input_timeArray[Zp_input_ntime];
+ if (Simtime >= Zp_input_startTime &&
+ Simtime <= (Zp_input_startTime + Zp_input_endTime))
+ {
+ double time = Simtime - Zp_input_startTime;
+ F_Z_engine = uiuc_1Dinterpolation(Zp_input_timeArray,
+ Zp_input_ZpArray,
+ Zp_input_ntime,
+ time);
+ }
+ double Mp_input_endTime = Mp_input_timeArray[Mp_input_ntime];
+ if (Simtime >= Mp_input_startTime &&
+ Simtime <= (Mp_input_startTime + Mp_input_endTime))
+ {
+ double time = Simtime - Mp_input_startTime;
+ M_m_engine = uiuc_1Dinterpolation(Mp_input_timeArray,
+ Mp_input_MpArray,
+ Mp_input_ntime,
+ time);
+ }
+ }
};
}
return;