actuator                package:Rlab                R Documentation

_A_c_t_u_a_t_o_r _f_o_r_c_e _e_x_p_e_r_i_m_e_n_t

_D_e_s_c_r_i_p_t_i_o_n:

     Small propulsion units, called actuators, are used to maneuver
     space craft once they are in space. In order to control these
     motions accurately, the actuator needs to produce a precise amount
     of force. This data set represents an experiment to understand
     what factors effect the variability of the force produced by an
     actuator. The actuator is fired using compressed air, and the
     factors studied are the actuator used (act), the amount of
     pressure used (press), the length of the air supply line (line)
     and the nozzle type (nozzle).

_F_o_r_m_a_t:

     A data frame with 16 observations on the following 6 variables.

     _a_c_t actuator used (A1 or A2)

     _p_r_e_s_s amount of pressure used (30psi or 100psi)

     _l_i_n_e length of the air supply line (20ft or 40ft)

     _n_o_z_z_l_e nozzle type (rightang or straight)

     _f_o_r_c_e force produced

     _o_r_d_e_r experimental order

_E_x_a_m_p_l_e_s:

     bplot(actuator$force,by=actuator$act)
     lplot(actuator$act,actuator$force,actuator$press)
     anova( lm(force ~ (act+press+nozzle+line)^2, data=actuator) )

