WOLFRAM SYSTEM MODELER

Ball

Ball subject to magnus forces.

Diagram

Wolfram Language

In[1]:=

SystemModel["EducationExamples.Physics.GolfAndSoccer.Components.Ball"]

Out[1]:=

Information

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Ball Component

CONTENTS:

ˇ Ball Component

ˇ Changing Friction

Ball Component

The ball component consists of three prismatic joints and one spherical rotation joint connected to both a golf ball component and a soccer ball component. Depending on the Boolean variable modelInUse, either the soccer model or the golf model will be active. That means that the other model will not exist.

Above is the diagram view of the ball component. The two ball models are so-called conditional components and will only exist if some condition is true. In this case, if modelInUse is equal to one or two.

Changing Friction

To change the friction coefficients of the ground, click the component called softSupportingPlane. Under the General tab, you can change the static and dynamic friction coefficient values, here denoted mu_static and mu_dynamic.

Terms and Conditions of Use

Parameters (6)

ballMass	Value: 999 Type: Mass (kg) Description: Mass of the ball
ballRadius	Value: 999 Type: Length (m) Description: Radius of the ball
modelInUse	Value: 2 Type: Integer
initVel	Value: Type: Velocity[3] (m/s) Description: Starting velocity of the ball
initAngVel	Value: Type: AngularVelocity[3] (rad/s) Description: Starting angular velocity of the ball
initPos	Value: Type: Position[3] (m) Description: Starting position of the ball

Connectors (1)

	frame_a1	Type: Frame_a

Components (9)

	prismaticX	Type: Prismatic
	prismaticY	Type: Prismatic
	prismaticZ	Type: Prismatic
	rotationJoint	Type: Spherical
	fixed	Type: Fixed
	softSupportingPlane	Type: SoftSupportingPlane
	soccer	Type: Soccer
	cameraPoint	Type: FixedTranslation
	golf	Type: Golf