The mesh is virtually always more coarse and contains fewer elements than hcodes. Use the info status command on the analyses and design studies dialog box to check the summary file for the actual value of a convergence quantity at each ploop pass. Click the icon that looks like a paper and pencil that allows you to edit the selected definition. Large deformation analysis for elastoplastic materials. Creo simulate uses absolute values to graph a convergence quantity. If you get it when running simulation, you will also have problem if later you want to display your result as a graph. Singlepass adaptive convergence applies to static, modal, buckling, and contact analyses of all element types. Nov 29, 2017 creo simulate, integrated closely with creo parametric, has comprehensive fea finite element analysis capabilities to handle thermal and structural analysis. In this course, you will learn how to utilize the core functionality enhancements in creo simulate 2. Recreate the mesh with a denser element distribution, reanalyze it. What you really what to know at the end of a mesh convergence study is what is a good estimate for the exact stress, which is at a zero element size. Introduction to dynamic analysis theory in creo simulate. Thus, convergence in regions where singularities exist e. This lesson will be used to get you set up for the rest of the tutorials.
Concepts and applications ebook written by chennakesava r. The graph is empty and creo does not actualize the graph scale whatever the measure you choose. Design intent is referenced and used throughout the book. Models may consist of isotropic andor orthotropic materials. While the singlepass adaptive option is available for contact analysis, we do not normally recommend its use because it can increase run time. Find and read books written by shawna lockhart and published by sdc publications. The tutorial lessons cover the major concepts and frequently used commands required to progress from a novice to an intermediate user level.
The lesson is quite short, and will cover the following. First, you will become familiar with using the new standalone creo simulate application. I am facing difficulties in understanding how creo simulate sets the nonlinear material properties. After this third pass the algorithm will again check locally for where the greatest change occurred and where the plevel may be increased again. Creo simulate creo simulate creating analyses structural analysis static and prestress static analyses convergence options convergence method convergence method convergence gives you an idea of how accurate your results are. Jan 10, 2018 in the plot below, the element size changes by at least a factor of 1. Hello, i have been using pro mechanica for a couple of years now and have been dealing primarily with dynamic time and dynamic random analyses and would like to. Once you update the design, you can easily rerun the. Create a mesh using the fewest, reasonable number of elements and analyze the model. Focuses on applying creo parametric as a design tool. It will go over some basic ideas about fea and what you can do with creo simulate. Pro e mechanica croe simulate tutorial video mid surface. This enables one to assemble the creo view file to creo parametric. Jun 01, 2015 after a brief introduction to finite element modeling, the tutorial introduces the major concepts behind the use of creo simulate to perform finite element analysis of parts.
This article discusses how to perform a mesh convergence study manually, and is applicable to all types of models. You can export the deformed shape from creo simulate results as an creo view. Download for offline reading, highlight, bookmark or take notes while you read advanced tutorial for creo parametric releases 1. This tutorial also shows how to format the results graph in order to change different aspects of the graph. Creo simulate reference links singlepass adaptive convergence method singlepass adaptive convergence method singlepass adaptive convergence applies to static, modal, buckling, and contact analyses of all element types. I suspect that it it the contacting elements that are not converging. Uses graphically rich stepbystep tutorials throughout the text. Creo simulate determines a new porder distribution and performs a final pass. Jul 27, 2012 advanced tutorial for creo parametric releases 1. To set up a scenario, lets say you produce a model, load it into simulate, add any necessary constraints. How to perform a mesh convergence study simulation. The process of selecting exlcuded elements near regions of singularity doesnt necessarily improve the accuracy, but only serves to prevent the solver from trying to adaptively adjust the shape function polynomial order. You can use this method to verify that you have defined your analysis correctly.
Page 2 of 5 ptc creo simulate data sheet convergence r ptype finite element methodology r single pass adaptive r multipass adaptive r user control on convergence criteria r automatic sizing and special treatment of elements near singularities design studies r parameters as independent variables of the design study load and. This locally adaptive plevel is something that is unique to creo simulate pelement technology. Problems involving very large geometric deflections. Ptc creo simulate gives designers and engineers the power to evaluate finite element analysis including structural and thermal product performance on your digital model before resorting to costly, timeconsuming physical prototyping. Select one of these convergence methods for creo simulate to use when it runs your analysis. As mentioned above, creo can handle problems involving nonlinearly elastic hyperelastic materials like rubber. Fea and convergence basics in a typical designengineering project one may be asked to predict stress, deflections, natural frequencies or temperature distribution in a part or assembly. Creo simulate convergence ptype finite element methodology single pass adaptive multipass adaptive user control on convergence criteria automatic sizing and special treatment of elements near singularities you can analyze your model and quickly identify problem areas. The design may have to be modified or optimized based on these predictions. Pro e mechanica creo simulate wildfire tutorial video. With the plotting grid setting the ram and hard disk resource consumptions can. The results look reasonable to the eye but i cannot make any firm conclusions as the analysis never manages to converge.
Convergence of pelements up to 9th order polynomials in promechanica the same mesh can be used throughout the convergence analysis, rather than recreating meshes or local mesh refinement required by hcodes. Sneak peek for creo simulation live is available in creo 5. It will also start checking convergence of user specified measures and convergence tolerance. To view the results as a graph, following these steps. Fea enables simulation and is especially useful for structural and thermal analysis typically, engineers use simulation software, such as creo simulate and its extensions, to perform various types of analysis.
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