Working with COSMOSMotion 2008

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When SOLIDWORKS came out with the new revamped interface for Motion Simulation in 2008, I was both eager and skeptical at the same time. The interface looks a lot like Animator, and timelines dictate the simulation setup. However, as I tried my hand at it, I was a little disappointed at some of the functionality that seemed to have been stripped off. I was concerned about three main areas: Joint definition: You can no longer define joints manually. Contacts: 3D […]

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Do you need a slam dunk test?

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Static studies assume loads are constant or applied very slowly until they reach their full values. Because of this assumption, velocity and acceleration of each particle of model is assumed zero. As a result, static studies neglect inertial and damping forces. For many practical cases, loads are not applied slowly or they change with time or frequency. For such cases we use a dynamic study. The software calculates response of model by accumulating the contribution of each mode to loading […]

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Do you need a specific type of machine to run Analysis?

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Well the question cannot be answered without understanding what is it being utilized for? Depending on the type of analysis versus size of analysis problem; the range could vary significantly. In this link I will try to give an over view of what should be considered. RAM Having a lot of RAM on your machine is like having a vehicle with a lot of Horse Power. The difficult the terrain the stronger the engine should be. In SOLIDWORKS and COSMOS […]

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Is Innovation a part of your Design Cycle?

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What makes Apple keep coming out with coolest looking gadgets that meet both function and style of current genre? Why hasn’t Microsoft seen a slump in its growth rate since its conception? I think we all know Innovation is driving all of them. Is that the case in your organization? Software vendors keep pushing the idea of making analysis a routine part of design – especially up front in the cycle. The benefits claimed: companies can spot and fix problems […]

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Accuracy of FEA – a needless complication

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I had to write about an interesting discussion I had yesterday with a CAE peer – a discussion on estimating the accuracy of analysis results. Finite Element theory has traditionally preached stress convergence. Instructors and technical staff tell the user to work towards making sure the mesh is fine enough at high stress areas so that the stress values do not change appreciably over successive runs. To supplement this procedure, COSMOS has gotten ever so easier to use as well. […]

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Ignoring Radiation can cause Eggs to Boil…

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I was at COSMOS User Group meeting in Racine, WI. Knowing a good majority of them, I was very happy to be surrounded by familiar faces. You know summer has kicked in; when everyone keeps talking about latest grill on the market helping their culinary skills to utopian levels. As everyone contributed their fascinating story, one caught my attention the most. An attendee claimed, keeping a tray of eggs close to the grill caused the eggs to boil. Having learnt […]

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Trouble shooting Mesh: “Element 7413 belongs to unsupported element group”

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While working with complex geometry (having small features, chamfers, fillets, sharp corners) mesh it might fail. Many a times COSMOS tells you what node or element failed. The reason for failure is usually the element was over stretched in trying to accommodate for features. The next logical step would be to apply local mesh controls in regions of failure. But first we need to locate where is that node or element located. To do so. …. 1.           […]

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The Front Fell off !!!

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There are times, no matter how careful you are designs don™t work when tested. Hopefully, design team take it with a pinch of salt and has fun over beer. Bob Konczal, the CTO, at Computer Aided Technology Inc. found a video of an Englishman, explaining why the front of a tanker – ship (carrying 20,000 tons of crude oil) fell off. I am sure this is purely meant for entertainment, but point taken Bob all engineering teams should be using […]

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Wisconsin / Illinois COSMOS User Group

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The best way to evaluate design performance is by testing it. With ever reducing design cycle time, and multitude of projects every engineer needs to work upon virtual testing paves the way to save time and money.  On June 3rd an elite group meets up in Wisconsin trying to understand how fellow designers crank the most out of their designs. The Wisconsin / Illinois COSMOS User Group is made of individuals who go an extra step with conceptual designs. The […]

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Splitting Surfaces for FEA

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Splitting a face of geometry in SOLIDWORKS can be very useful in FEA for a number of reasons: Isolating a location to specify a load/restraint Specifying areas to apply mesh control Reducing the time to solve by cutting down the areas of a no-penetration contact condition, and so forth. There are two methods to split a face in SOLIDWORKS that the user can exploit for analysis purposes: a) SPLIT LINE COMMAND Insert > Curve > Split Line This tool can […]

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