WOLFRAM SYSTEMMODELER

PartialFriction

Partial model of Coulomb friction elements

Wolfram Language

In[1]:=
SystemModel["Modelica.Mechanics.Rotational.Interfaces.PartialFriction"]
Out[1]:=

Information

This information is part of the Modelica Standard Library maintained by the Modelica Association.

Basic model for Coulomb friction that models the stuck phase in a reliable way.

This procedure is implemented in a "clean" way by state events and leads to a mixed continuous/discrete systems of equations if friction elements are dynamically coupled which have to be solved by appropriate numerical methods. The method is described in (see also a short sketch in UsersGuide.ModelingOfFriction):

Otter M., Elmqvist H., and Mattsson S.E. (1999):
Hybrid Modeling in Modelica based on the Synchronous Data Flow Principle. CACSD'99, Aug. 22.-26, Hawaii.

Parameters (1)

w_small

Value: 1.0e10

Type: AngularVelocity (rad/s)

Description: Relative angular velocity near to zero if jumps due to a reinit(..) of the velocity can occur (set to low value only if such impulses can occur)

Extended by (3)

Clutch

Modelica.Mechanics.Rotational.Components

Clutch based on Coulomb friction

Brake

Modelica.Mechanics.Rotational.Components

Brake based on Coulomb friction

BearingFriction

Modelica.Mechanics.Rotational.Components

Coulomb friction in bearings