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Working Model 2005 – Release Guide
• New formula language commands (see user manual for details)

Simulation Functions ke() peuniformgravity() uniformgravity() length(id, id) lengthp(id, id) lengthpp(id, id) linearmomentum() angularmomentum(id) Object Functions body[id].restitution body[id].cm body[id].momentum body[id].pe body[id].ke constraint[id].active

Returns the total kinetic energyof all bodies Returns the total uniform gravitational potential energy of all bodies Returns the uniform gravitational acceleration Returns the length between two points, two bodies (their centers of masses), or a point and a body (its center of mass) Returns the first time derivative of the length between two points, two bodies (their centers of masses), or a point and a body (its center of mass)Returns the second time derivative of the length between two points, two bodies (their centers of masses), or a point and a body (its center of mass) Returns the linear momentum of all the bodies in either the x or y direction Returns the angular momentum of all the bodies relative to a body (id = body ID), the world (id = 0), or the system center of mass (id = 10012)

Same asbody[id].elasticity Same as body[id].cofm Returns the linear momentum (.x or .y) or angular momentum (.r) of a body Returns the body’s potential energy due to a uniform gravitational field Returns the body’s kinetic energy Returns whether a constraint is active, i.e., affecting the motion of its constrained bodies constraint[id].isactivewhen Returns the result of the condition in the constraint’s “Active when”dialog Math Functions dot(vectorA, vectorB) cross(vectorA, vectorB) angle(vectorA, vectorB) express(vectorA, B, C) gaussian / pulse ramp / ramp2 sawtooth / sinusoid squarewave / squarewave2 step / step0 / step1 / step2 Returns the dot product of vectorA and vectorB Returns the cross product of vectorA and vectorB Returns the angle between vectorA and vectorB Given vectorA expressed in basis B, returnsa vector expressed in basis C Various Input Curves. See user manual for usage and description

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Excel input data increased from old limit of 4080 values to computer memory limit



Updated to be compatible with DXF version 2000



Enables tracking of a single object (unable to track single object in WM2004)



Updated Text objects to workproperly with mouse

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Sliders can be placed on top of a graph without distorting graph output



Default animation step of 0.05 sec and integrator error of 0.01 m (in the Accuracy dialog box) for more accurate and predictable results by default



New licensing schemes: o License that is node-locked to a single computer (based on computer ID) o License withtime expiration o License with limits for bodies, constraints, inputs, and outputs o Updated FLEXlm licensing code

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“Educational use only” dialog box and installer license agreement for educational licenses



CD-key installer message for educational single-user and homework licenses

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Working Model 2004 New Features*Overview
1. Improved ability to create flexible bodies (Flexbeams) 2. FlexLM licensing 3. DC Motor and DC Actuator 4. Generic Coord-to-Coord Constraint 5. Generic Point-to-Point Constraint 6. DXF import expanded to version 12 through version 2000 7. Dynamic memory allocation for objects 8. Tutorial guide (PDF format) now included – a $50 value 9. Updated user interface 10. Improved graphing capabilities11. Instantaneous vector values can be displayed with vectors 12. Color of bodies linked to formula language and can change on the fly 13. Feel the motion and/or collision
* Runs on Microsoft® Windows® 95/98/98SE/Me/NT®4.0/2000/XP

1. Improved ability to create flexible bodies (Flexbeams) Significant new features have extended the popular Flexbeam script: • • • • • • • Create flexible beams...
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