Mass
Ideal mechanical mass.
Description
The Mass block represents the ideal mechanical mass, which is described by the following equation:
Where:
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- force of inertia.
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- mass.
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- velocity.
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- time.
By default, the block has one mechanical progressive port. The positive direction of the block is from its port to the reference point. This means that the force of inertia is positive if the mass accelerates in a positive direction.
In some applications, it is common to display the mass in series with other elements in the block diagram layout. To support this use case, the Number of graphical ports parameter allows a second port to be displayed on the opposite side of the block icon.
The two-port option is purely graphical: the two ports have the same speed, so the block functions exactly the same whether it has one or two ports. The block icon changes depending on the value of the Number of graphical ports parameter.
| Number of graphical ports | Block icon |
|---|---|
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Ports
M is the port that connects the unit to the network
translational mechanics
A mechanical progressive port that connects the mass to the physical network.
N is the second graphics port
translational mechanics.
A second mechanical port to preserve progressive motion, which allows the mass to be connected in series with other elements on the block diagram. This port is connected to the M port, so the difference between single and dual port block representations is purely graphical.
Dependencies
To use this port, set the Number of graphical ports parameter to 2.
Parameters
Mass, kg - mass
`1.0 kg (by default)
Mass value. The mass remains constant during the simulation.
Number of graphical ports - number of graphical ports
1 (by default) | 2
Number of graphical ports:
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1- The block has one port that connects it to the mechanical progressive circuitry. When a unit has one port, connect it to a connecting line between two other units. -
2- selecting this option opens a second port that allows the block to be connected in series with other blocks in the circuit. The two ports are connected and have the same speed, so the block functions exactly as if it had one port.