Skip to main content

Table 1 Subway Vehicle System DOF

From: Subway Embedded Track Geometric Irregularity Safety Limits

Vehicle parts DOF
Longitudinal Lateral Vertical Rolling Rotating/Pitch Yaw
Wheelset (i = 1,4) \(X_{{{\text{w}}i}}\) \(Y_{{{\text{w}}i}}\) \(Z_{{{\text{w}}i}}\) \(\phi_{{{\text{w}}i}}\) \(\beta_{{{\text{w}}i}}\) \(\psi_{{{\text{w}}i}}\)
Left rotary arm (i = 1,4) \(X_{{{\text{ab}}Li}}\) \(Y_{{{\text{ab}}Li}}\) \(Z_{{{\text{ab}}Li}}\) \(\beta_{{{\text{ab}}Li}}\)
Right rotary arm (i = 1,4) \(X_{{{\text{ab}}Ri}}\) \(Y_{{{\text{ab}}Ri}}\) \(Z_{{{\text{ab}}Ri}}\) \(\beta_{{{\text{ab}}Ri}}\)
Bogie frame (i = 1,2) \(X_{{{\text{b}}i}}\) \(Y_{{{\text{b}}i}}\) \(Z_{{{\text{b}}i}}\) \(\phi_{{{\text{b}}i}}\) \(\beta_{{{\text{b}}i}}\) \(\psi_{{{\text{b}}i}}\)
Car body \(X_{{\text{c}}}\) \(Y_{{\text{c}}}\) \(Z_{{\text{c}}}\) \(\phi_{{\text{c}}}\) \(\beta_{{\text{c}}}\) \(\psi_{{\text{c}}}\)