Messenger wire specific mass | 1.07 kg/m | Mass of the pantograph collector head | 7.2 kg |
Messenger wire tension | 16 kN | Mass of the pantograph articulated frame | 15.0 kg |
Messenger wire axial stiffness | 12 MN | Pantograph static force | 120 N |
Contact wire specific mass | 1.35 kg/m | Stiffness of the upper spring of the pantograph | 4200 N/m |
Contact wire tension | 20 kN | Stiffness of the lower spring of the pantograph | 50 N/m |
Dropper tensile stiffness | 100 kN/m | Parameter of the upper damper of the pantograph | 10 Ns/m |
Single span length | 60 m | Parameter of the lower damper of the pantograph | 90 Ns/m |
Number of droppers within span | 9 | Stiffness of the contact spring | 50 kN/m |
Material damping coefficient of the messenger wire | 0.5% | Material damping coefficient of the contact wire | 0.5% |