Simscape™

Translational Spring - Simulate ideal spring in mechanical translational systems

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Mechanical Translational Elements

The Translational Spring block represents an ideal mechanical linear spring, described with the following equations:

where

`F`	Force transmitted through the spring
`K`	Spring rate
`x`	Relative displacement (spring deformation)
`x_init`	Spring initial displacement (spring offset)
`x_R,x_C`	Absolute displacements of terminals R and C, respectively
`v`	Relative velocity
`t`	Time

The block positive direction is from port R to port C. This means that the force is positive if it acts in the direction from R to C.

Spring rate: Spring rate. The default value is 1000 N/m.
Initial deformation: Spring initial deformation, or offset, in length units. The deformation is determined as x = x_init + x_R – x_C, where x_init is the initial deformation, andx_R, x_C are the absolute displacements of terminals R and C in the globally assigned positive direction. The spring can be initially compressed (x_init > 0) or stretched (x_init < 0). 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 the following ports: