SimWise 4D - SolidWorks

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SimWise 4D3D Dynamic Motion, Stress Analysis and Optimizationintegrated with SOLIDWORKS

SimWise 4DIntegrated Motion SimulationStress Analysis and OptimizationSimWise 4D is a software tool thatallows the functional performanceof mechanical parts and assembliesto be simulated and validated. Itcombines 3D multi-body dynamicmotion simulation with 3D finiteelement analysis and optimization ina Windows based product intergatedwith SOLIDWORKS, priced affordablyfor every engineer. Each of the majorcomponents of SimWise 4D, themotion module, and the FEA module,is available as a separate productand are powerful in their own rightbut the real benefits arise when thetwo are combined together in the 4Dproduct.Integration withSOLIDWORKSjoints. Design variables anddimensional values are available touse with Optimization. The SimWisemodel contains associative links backto the SOLIDWORKS model.If a change is made to theSOLIDWORKS model a singleoperation will update theSimWise model to reflectthose changes. The changeprocess can be initiatedfrom either SimWise orSOLIDWORKS.All of the SimWise products areintegrated with SOLIDWORKS. Usinga SOLIDWORKS add-in developedspecifically to transfer SOLIDWORKSdata to SimWise, geometry, massproperties, materials, assemblyconstraints, design variablesand dimensional values can betransferred to SimWise with a singleoperation.Assembly constraints areautomatically mapped to SimWiseDesigns that are made up of movingmechanical parts present challengeswhen it comes time to answerfundamental questions like “Does itwork?”, “Will it break?”, “How can itbe designed better?”, and “How longwill it last?”.Dynamic forces are hard to calculateand the part stresses induced bymotion are even more difficult toquantify. Many of these designs arevalidated in the test lab or in the fieldusing prototypes of pre-productiondesigns. If problems are found thedesigns must be revised and theprocess repeated, resulting in acostly and time-consuming approachto product validationSimWise 4D gives you the ability toexplore the functional performanceof your design before prototypes arebuilt. Options can be explored in atimely and cost effective mannerbecause hardware does not need tobe built until you have confidencethat your design works as intended.The capabilities of SimWise 4D make“getting it right the first time” morethan just a slogan; it makes it anintegral part of your design process.SOLIDWORKS part and assemblymodels can also be opened directlyby SimWise. This method onlytransfers geometry, mass andmaterial properties. This methodalso supports updates if the part orassembly model has changed.

SimWise Motion3D Motion SimulationSimWise Motion is rigid bodykinematics and dynamics simulationsoftware that lets your build andtest functional virtual prototypes ofyour designs on the computer andsimulate the full-motion behavior ofthose designs. It imports geometry,mass properties, and constraintsfrom SOLIDWORKS and allows youto add motion specific entities tothe model resulting in a functionaloperating prototype of your design.It simulates that prototype usingadvanced physics and mathematicaltechniques and presents the resultsof the simulation in various graphicand numeric formats. You can quicklydetermine how your design operatesand determine if it meets your designobjectives or if modifications arenecessary. All on the computer, allwithout costly and time-consumingphysical prototypes.your SOLIDWORKS model to build afunctional operating prototype. Theseobjects include:SimWise Motion has a rich set offunctional objects that are added toMotors, actuators and forces canbe driven by the SimWise formula Rigid, revolute, spherical,curved slot, planar constraints Rods, ropes, springs, gears,belts, pulleys, conveyors Bushings (flexible connections) Motor and actuators Point forces, torques,distributed forces, pressure,friction forceslanguage, tabular data, valuesin an Excel spreadsheet, or by aSimulink model co-simulatingwith SimWise Motion. This allowsphenomena like motor start upand spin-down characteristics,variable speed actuators, andelectro-mechanical controllers to beincorporated in the simulation model.Assembly constraints fromSOLIDWORKS are automaticallyand associatively converted toSimWise Motion constraints.Many times assembly models areover constrained so a “constraintnavigator” is available to walkthrough each motion constraintand modify as necessary to removeredundancies. Limits can be set forconstraints to model rotational ortranslational “stops”. Friction forcescan be activated on an individualconstraint basis by specifying theCollisions between parts are handledeasily allowing the simulation ofmechanisms like ratchets, clamps,grips, and others that rely on contactbetween two or more parts tooperate. Contact forces and frictionforces that occur at the time ofcontact are calculated and availablefor plotting, query or use by SimWiseFEA.Powerful Formula Languageand Function BuilderSimWise contains a powerful formula language that allows simulation entityproperties, instantaneous simulation values, and mathematical expressionsto be combined into an expression that is evaluated during the simulationand which can be used to define physical values in the simulation.Formulas can also be used to generate values for display on meters. Forexample the formula:ProgrammabilitySimWise contains a very rich automation interface which allows it to beboth interfaced with and controlled by other applications. Programminglanguages such as C , C#, Visual Basic, Java, and even vbScript can beused to customize SimWise. You can automate the integration of SimWiseinto your proprietary processes and your proprietary calculations can beused from within the SimWise Body[49].v)When added to a meter will display a graph of the kinetic energy ofBody[49].The formula language can also be accessed using a function builder thatallows equations to be assembled interactively. The function builder containan integrated graphing capability so as a function is defined, its graph isdisplayed and updated.The function builder allows complex functions to be defined graphically

SimWise Motion3D Motion Simulationfriction coefficient and a physicaldimension based on the constrainttype.All SimWise Motion objects can beselectively made active or inactivebased on some criteria defined bythe SimWise formula language. Forexample, a rotational constraint canbe active as long as its reaction forceis below a specified value. Once thereaction force exceeds the value,the constraint will deactivate and nolonger constrain its attached parts.This would model the effect of theconstraint “breaking” due to theinternal forces being too high.The SimWise Motion simulationengine calculates the displacement,velocity, and acceleration of eachbody in the motion model andreactions forces that act on eachbody as a result of its dynamicmotion. This includes the motion andforces that result from any collisionsbetween parts.Each of these quantities can bedisplayed on meters either in graphor digital format. The values can beaccessed with the formula languageor tabulated on an HTML report.Graphical vectors can be createdthat visually show the quantitiescalculated during the simulation. Thevectors can change size and directionas the quantities they display change.Motors and actuators can report theirforce or power requirements to helpyou determine the proper sizing ofthese elements, and parasitic lossesdue to friction can be determined.SimWise Motion help you to answerthe question “Does it Work?” andprovides the data necessary forSimWise FEA to help you answer thequestion “Will it Break?”.SimWise Motion supports a conveyor constraint for modeling materials handlingPhotorealistic rendering and animationAnnotation and Mark-upSimWise uses high quality, high performance rendering technology fromLightworks. Multiple light types and sources, texture mapping, shadowingand other effects are available. Combined with the SimWise animationcapabilities it can produce very realistic “movies” of a design as it operates.Stress contour results can also be incorporated in the animations. Youcan watch your design operate and see how the stresses induced by theoperation effect individual parts. The rendered animations and images canbe exported to formats that allow placement on web sites, in documents,and presentations.Annotations in the form of text, call-outs, and distance and radial dimensionscan be added to the simulation model. The distance dimensions are active inthat they update if the model is moved or animated. SimWise also providesa distance dimension that shows the points of closest approach and theminimum distance between two bodies. This dimension also updates as thebodies move.Cameras that move in space or which can be attached to parts aresupported. This allows you to produce “fly-through” type animations or viewthe design operating from a “birds-eye” view as if you were sitting on oneof the parts.SimWise also provides an animation technique known as keyframing.With keyframing you can specify motions in ways that are not based onphysics. For example, you can script a corporate logo flying through theair, or a parts-exploding automobile engine to show how it is assembled.Even cameras can be keyframed to create “movie-like” scenes that pan,zoom, and highlight product features. You can also combine physics-based,simulated movement with keyframed animation to create complex motionsequences.Texture mapping, reflections, and shadows can all be used in animations

SimWise FEAMechanical Stress and Thermal AnalysisSimWise FEA is a Finite ElementAnalysis tool that performs stress,normal modes, buckling, and heattransfer analysis on mechanicalparts. It is highly automated andhandles much of the complexityassociated with FEA while offeringpowerful features for users who aresteeped in the intricacies of the FiniteElement Method.It imports geometry fromSOLIDWORKS and allows you toadd structural and thermal specificentities to the model resulting ina functional structural prototypeof your design. It simulates thatprototype using advanced physicsand mathematical techniques andpresents the results of the simulationin various graphic and numericformats. You can quickly determinewhether your design is robustenough to operate as intended or ifmodifications are necessary. All onthe computer, all without costly andtime-consuming physical prototypesand before warranty issues arise.SimWise FEA has a rich set offunctional objects that are added toyour SOLIDWORKS model to build afunctional structural prototype. Theseobjects include: Concentrated loads, distributedloads, torques, and pressures Restraints and enforceddisplacements Prescribed temperatures,conductive and convective heatflux, and radiationAll of these values can be driven bythe SimWise formula language. Allof these objects are applied to theunderlying geometry, not to nodesand elements as in a traditional FEAproduct.SimWise uses a fast iterativeFinite Element Analysis solver thattakes advantage of multi-coreprocessors and which is based on aPreconditioned Conjugate Gradientmethod. SimWise FEA exclusivelyuses ten-node tetrahedral elementsand the solver is optimized for thistype of problem.SimWise FEA performs the followingtypes of analyses: Linear Static Stress Steady State Thermal Trasient Thermal Normal ModesThe error results can be used todrive an iterative solution processcalled h-adaptivity where the errorresults are used to refine the FiniteElement mesh in areas with largeerror values and use that new meshto run another solution. The errors inthe new solution are compared to agoal and if error values in the modelstill exceed the goal, the processin the results are increased and nospecial knowledge about appropriatemeshing techniques is required.If more control over the mesh isrequired, SimWise FEA providesmesh controls that can be attachedto geometric faces or edges. Thecontrol allows the mesh size to bespecified on that particular featureand the resulting 3D mesh will be Buckling Combined Thermal/StructuralSimWise FEA can displayFEA results as shadedcontours, deformed shapes,or animations. In additionto these engineeringInitial Mesh - Error 13%Refinement 1 - Error 8%Refinement 2 - Error 5%values, SimWise FEA alsoh-Adaptivity refines the mesh until an error threshold is achievedcalculates factors of safetythe specified size along or across theand errors in the stress results andis repeated with successive meshgeometric feature.both of these can be displayed asrefinements and analyses until theshaded contours.error goal is achieved. Confidence

SimWise 4DOptimizationOptimization allows you to answerthe “How can it be made better?”question about your design.Once you know a design will workand is strong enough to operatesafely, you can start to considermaking trade-offs between productattributes in the areas of weight, cost,manufacturability, and performance.SimWise 4D includes the HEEDS optimization engine which, using itsunique SHERPA algorithm, rapidlyiterates through many designalternatives looking for designparameters that meet all targets andcriterias.Three things are needed foroptimization: Parameters – The values thatwill be changed to achievean optimized objective. Thesecan be any type of SimWisevalue, such as the stiffness of aspring, or the location of a joint. Objective – The value(s) tobe optimized. Any SimWiseSimulink InterfaceMATLAB /Simulink is widely used todesign and simulate control systemsin a variety of domains. As productsgrow more sophisticated,many mechanical assembliesare run by controllers andthe ability to simulate thecontroller together withthe mechanical system isnecessary. SimWise can functon as a“plant” model in Simulinkwhich allows a SimWisemodel to be placedquantity that can be displayedon a meter along with mostSimWise object attributes canbe an objective. Constraints – Place bounds onthe optimization. Any SimWisequantity that can be displayedon a meter along with mostSimWise object attributes canbe used as a bound.As the optimization runs, the enginewill choose different values for theparameters and run multiple Motion,FEA, or Motion FEA simulations.The high performance SHERPAsearch algorithm in the HEEDS engine guide the choice of parametervalues. The data from each run arepreserved and can be reviewed.Each run is ranked in terms of howit meets the optimization criteria andthe rankings can be used to arrive atthe final values used for your design.If your SimWise model wastransferred from SOLIDWORKSvia the Plug-In, then you can alsochoose to transfer Design Variablesin a Simulink model as a blockrepresenting the mechanical model.Any SimWise value displayed on ameter can be defined as an “ouput”and Dimensions from SOLIDWORKSto SimWise. These Variables andDimensions can also be used as aParameter, Objective, or Constraint inthe optimzation process. Each timethe optimzation engine determinesthat a CAD Variable or Dimensionneeds to be changed, the CADsystem will be passed the newvalue, the model will be updated,and transferred back to SimWisefor the next optimization step. Thecomplex process of updating theSOLIDWORKS model, and runningmutliple Motion and/or FEA analysesis completly managed by SimWise.Some of the benefits of usingSimWise Optimization include: Reduced developmentcosts and improved productperformance - With theoptimization methods availablein SimWise coupled with itsintegrated Motion and FEAsolvers and associative linksto SOLIDWORKS, you canuncover new design conceptssignal from the Plant Model andbe connected to another Simulinkblock’s input.A Simulink block’s output may beconnected to an input control inSimWise and the input controlcan be mapped to almost anynumeric attribute of a SimWiseobject. For example the amountof force generated by a linearactuator or the speed of a rotarymotor.SimWise Plant model integrates with Simulinkthat improve productsand significantly reducedevelopment, manufacturing,warranty and distribution costs Sensitivity studies - UseSimWise Optimization to identifythe variables that affect yourdesign the most. You can thenignore variables that are notimportant or set them to valuesthat are most convenient orleast costly. This allows you tocontrol quality more effectivelywhile lowering cost. Lets you focus on innovativedesign - There’s no needto experiment with differentoptimization algorithms andconfusing tuning parameters foreach new problem. The HEEDSSHERPA algorithm adapts itselfto your problem automatically,finding better solutions faster,the first time.Best of all there is nothing extrato purchase. All of the capabilitiesneeded to peform sophisticated,analysis driven optimization are partof SimWise 4D.Benefits: Control engineers can test theircontrol algorithms with dynamicmechanical models includingphenomena like 3D contact andfriction. The mechanical engineer andthe controls engineer cancombine their independantmodels. Development time and costcan be saved by evaluatingthe controller and mechanicalsystem early in the designprocess without having to buildphysical prototypes.

SimWise DurabilityFatigue Life AnalysisSimWise Durability is an add-onmodule to SimWise 4D that allowsyou to answer the “How long willit last?” question about your designbefore you ever build a prototype.Fatigue damage is one the mostcommon causes of structural failure,and can lead to disastrous outcomes.Therefore, prediction of structuralfatigue life is essential in modernproduct design.stresses and strains that result fromthose dynamic loads.The following calculation methodsare supported:SimWise Durability applies widelyaccepted FEA fatigue calculations tothe stress/strain history to determinethe part fatigue life. It presents thisdata as a shaded contour plot justlike FEA stress or temperatureresults. From this you can quicklydetermine if the part life is within thedesign objectives, and if not, wherechanges need to made to improvefatigue life. Manson CoffinSimWise Durability provides about150 different materials containingfatigue properties per SAE J1022. Morrow Basquin ASME BWI Weld Smith-Watson-Toper Max Shear Strain Goodman GerberBenefits: Reduce reliance on physicaltests and avoid costly designand tooling changes. Reduce costs and weight byassessing more design options. Perform better physical tests bysimulating first. Reduce warranty costs byreducing failures.SimWise 4D is a prerequisite forSimWise Durability. Dang VanFatigue life can be calculated usinguni-axial or biaxial methods andSimWise Durability supports both.SimWise 4D already calculates thedynamics loads that result from themotion of a mechanism, and theFatigue life plot of a door armAn unprecedented Value PropositionThere are many options whenchoosing a set of CAE tools; FEAapplications, 3D Dynamic Motionapplications, CAE tools that are partof CAD systems. SimWise sets itselfapart in this crowded field because itoffers unsurpassed value.Consider that for a fraction of theprice of some single-purpose CAEtools, SimWise delivers: 3D Dynamic Motion Simulationincluding contact, friction,formulas, and more. Linear static, normal modes,buckling, steady state andtrasient thermal and combinedthermal and structural analysis. Adaptive FEA meshing providinglocal mesh refinement inareas of hgh stress gradients,producing accurate results withminimal input. Combined Dynamic Motionand FEA analysis allowingthe stresses that result fromthe dynamic operation of anassembly to be calculated. Optimization using FEA, Motionor combined results. Integration with MATLAB/Simulink for co-simulation ofmechanical assemblies andcontrol systems. The ability to open andupdate CAD files directly fromSOLIDWORKS. The Plug-in for SOLIDWORKS,that allow associated modeltransfers along with assemblyconstraints, parameters anddimensions to be used foroptimizatio

Integrated Motion Simulation Stress Analysis and Optimization Integration with SOLIDWORKS All of the SimWise products are integrated with SOLIDWORKS. Using a SOLIDWORKS add-in developed specifically to transfer SOLIDWORKS data to SimWise, geometry, mass properties, materials, assembly co

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