Package jsim.forces

Class MagnusForce

java.lang.Object

jsim.forces.MagnusForce

All Implemented Interfaces:

ForceGenerator

public final class MagnusForce
extends Object
implements ForceGenerator

Magnus force for spinning projectiles: F_magnus = k · (ω × v).

The cross product of angular velocity with linear velocity produces a lift force perpendicular to the spin axis, causing curved flight. The Magnus coefficient k (kg/rad·m) is empirically determined per object (typically 0.1–2.0 for FRC game pieces).

Constructor Summary

Constructors

Constructor	Description
MagnusForce(RigidBody body, double magnusCoefficient)	Create a Magnus force generator for the given body.

Method Summary

Modifier and Type	Method	Description
void	apply(double dt)	Apply forces/torques to whichever bodies this generator influences.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

MagnusForce

public MagnusForce(RigidBody body,
 double magnusCoefficient)

Create a Magnus force generator for the given body.

Parameters:

body - the spinning body to apply Magnus lift to

magnusCoefficient - Magnus lift coefficient k (kg)

Method Details

apply

public void apply(double dt)

Description copied from interface: ForceGenerator

Apply forces/torques to whichever bodies this generator influences.

Specified by:

apply in interface ForceGenerator

Parameters:

dt - the fixed simulation timestep in seconds