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Mechanical Translational Elements
The Mass block represents an ideal mechanical translational mass, described with the following equation:
![]()
where
| F | Inertia force |
| m | Mass |
| v | Velocity |
| t | Time |
The block has one mechanical translational conserving port. The block positive direction is from its port to the reference point. This means that the inertia force is positive if mass is accelerated in positive direction.

Mass. The default value is 1 kg.
Initial velocity of the mass. This parameter specifies the initial condition for use in computing the block's initial state at the beginning of a simulation run. For more information, see Computing Initial Conditions. The default value is 0.
The block has one mechanical translational conserving port, associated with the mass connection to the system.
![]() | Linear Hydraulic Resistance | Mechanical Rotational Reference | ![]() |

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