# Post-processing quantities: translation motion)

## Introduction

This paragraph deals with physical quantities computed for translating motion.

## Kinematic variables

The list of kinematic variables used for solving and the names of the corresponding Flux parameters are given in the table below; in this table MS indicates the concerned mechanical set.

Kinematic variable Name Unit
Linear position: y LinPos(MS) m
Linear speed: LinSpeed(MS) m/s
Linear acceleration: LinAcc(MS) m/s²

## Physical quantities

The list of physical quantities computed in the post-processing module and the names of the corresponding Flux parameters are given in the table below; in this table MS indicates the concerned mechanical set.

Force Name Unit Explanation
Electromagnetic force: F em ForceElecMag(MS) N
Internal system
Friction force: ForceFrInt(MS) N Spring return force: ForceSpInt(MS) N Inertia force: ForceInInt(MS) N Resistant force*: ForceReInt(MS) N or External system
Friction force: ForceFrExt(MS) N Spring return force: ForceSpExt(MS) N Inertia force: ForceInExt(MS) N Resistant force * : ForceReExt(MS) N or Note: *The resistant force is:
• either the sum of the friction force + the spring return force
• or the resistant force defined using a formula

## Reminder of the solved mechanical equation

The solved mechanical equation for translating motion is: where:

• m is the mass • is the mass of the moving mechanical set (internal system)
• is the mass of the external load (external system)
• is the electromagnetic force
• is the resistant force • is the resistant force acting on the moving mechanical set (internal system)
• is the resistant force acting on the external load (external system)

## Important note

When there are symmetries and periodicities, the forces are computed for the entire device.