ShockAbsorber

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ShockAbsorber

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Iconic Diagrams\Mechanical\Translation\Components

Implementations

Right

Left

Use

Domains: Continuous. Size: 1-D. Kind: Iconic Diagrams (Translation).

Introduction

This model represents a shock absorber with an open end. This type of shock absorbers is used to protect equipment from large impacts when reaching the end of a line.

ShockAbsorberOpen

 

The damper has an internal piston which can travel a certain length (i.e. the stroke l) until it collides with the end cap. The shock absorber is modeled by a damper for the active damping part and a spring damper to model the impact with the end cap. The position of the damper is indicated by the parameter x0. Two implementations are available: one with the impact at the right and one with the impact at the left.

 

The damper is modeled by viscous damping, where the damping force is proportional with the velocity:

 

p.F = d * v;

 

After a stroke of length l, the end caps are reached which a are modeled by a spring damper:

 

p.F = k * x;

 

To get the damper back in its original position a return force is added.

 

Description - Right

The ShockAbsorber-Right models a shock absorber with impact at the right of the system.

 

ShockAbsorberRight

Shock absorber model with impact at the right.

Description - Right

The ShockAbsorber-Left models a shock absorber with impact at the left of the system.

 

ShockAbsorberLeft

Shock absorber model with impact at the left.

Interface

Ports

Description

p_high

p_low

Two ports of the shock absorber model.

Causality

 

fixed force out

 

Parameters

 

k

d

l

x0

Fr

stiffness at the end cap [N/m]

damping [N.s/m]

shock absorber stroke [m]

position of the damper [m]

return force [N]