2015-02-26 15:02:31 +00:00
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/*********************************** TRICK HEADER **************************
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PURPOSE: (Test Baseball)
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***************************************************************************/
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2015-03-23 21:03:14 +00:00
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#ifndef CANNON_AERO_H
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#define CANNON_AERO_H
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2015-02-26 15:02:31 +00:00
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#include "sim_services/include/regula_falsi.h"
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typedef enum {
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Hard_Coded_Coefficient_Lift, /* You come up with Cl */
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Smits_Smith, /* Cl ~= 0.54*S^0.4 (S = rw/V) */
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Adair_Giordano, /* Lift_Force = mass*0.00041*w_cross_V */
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Tombras /* Cl = 1/(2.022 + 0.981v/w) */
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} Lift_Estimation_Method ;
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typedef struct {
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double pos[3] ; /* M position */
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double vel[3] ; /* M/s velocity */
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double acc[3] ; /* M/s2 acceleration */
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double omega[3] ; /* r/s Angular velocity of cannonball */
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double theta ; /* r Angle from x-axis to axis rotation */
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double phi ; /* r Angle from z-axis to axis rotation */
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double omega0 ; /* r/s Magnitude of angular velocity about
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axis of rotation */
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/* Impact */
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REGULA_FALSI rf ; /* -- Dynamic event params for impact */
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int impact ; /* -- Has impact occured */
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double impact_pos ; /* M How far ball lands in field */
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/* Forces */
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double force_gravity[3] ; /* N Gravitational force */
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double force_drag[3] ; /* N Drag force opposite dir of velocity */
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double force_magnus[3] ; /* N Force due to spin, dir grav cross drag */
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double force_cross[3] ; /* N Side directional force */
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double force_total[3] ; /* N Sum of all forces */
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/* Force magnitudes */
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double mag_force_drag ; /* N Magnitude of drag force */
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double mag_force_magnus ; /* N Magnitude of magnus force */
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double mag_force_cross ; /* N Magnitude of cross force */
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double mag_omega ; /* r/s Magnitude of angular velocity */
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void** force_collect ; /* -- For collect statement */
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/* Environment and Properties */
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double mass ; /* kg Mass of cannonball */
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double air_density ; /* kg/M3 Air density at 20C */
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double ball_radius ; /* M Radius of cannonball */
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double ball_area ; /* M2 Cross sectional area of ball */
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double spin_parameter ; /* -- S=r*omega/speed */
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double g ; /* M/s2 Gravitational acceleration */
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/* Coefficients drag, lift and cross */
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Lift_Estimation_Method lift_method ; /* -- How to find lift force */
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double coefficient_drag ; /* -- Drag coefficient */
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double coefficient_lift ; /* -- Lift coefficient */
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double coefficient_cross ; /* -- Cross-Force coefficient */
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/* Jet */
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int jet_on ; /* -- 0|1 */
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int jet_count ; /* -- How many jet firings? */
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double force_jet[3] ; /* N Jet force per firing */
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double force_jet_Z_plus ; /* N Configurable force of jet in Z+ direction */
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double time_to_fire_jet_1 ; /* s First jet firing time */
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double time_to_fire_jet_2 ; /* s Second jet firing time */
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double time_to_fire_jet_3 ; /* s Third jet firing time */
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double time_to_fire_jet_4 ; /* s Fourth jet firing time */
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} CANNON_AERO ;
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#endif
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