rho_coil (m_total-m_diaphragm)/mass_coil.volume "Coil effective density"
v0 ave_coil(solid.u_tZ) "Coil velocity"
avedisp ave_coil(w) "Average Displacement of the coil"
m_diaphragm mass_diaphragm.mass "Mass of the diaphragm"
I_int down(acpr.Ix)*nx+down(acpr.Iy)*ny+down(acpr.Iz)*nz "Energy traveling through boundary"