The model is 200+ parts. In traditional FEA, finding modes can be problematic. D3D: Do you have any quantifiable information with regards to the accuracy of your methods compared to more traditional approaches? Altair SimSolid Standard edition comes with linear static and modal analysis. SIMSOLID is structural analysis software developed specifically for design engineers. Adaptive solution refinement allows a single model to capture low to high frequency modes even for large assemblies. Additionally, the software utilizes distinctive multi-pass adaptive analysis to govern the accuracy of the solution. Altair SimSolid makes the process of finding modes much easier. Learn how to create distributed mass in Altair SimSolid. This is a truss structure with 500+ parts with a variety of shapes and full CAD geometric detail. Learn how to create seam welds in Altair SimSolid. Complicating this further, many modal eigen-solvers are sensitive to the kind, size and shape of the elements used. The lowest modes with simple shapes are usually easy to find, but it becomes increasing more difficult to capture the modes with higher frequencies and more complex mode shapes. Modal – Modal analysis in structural mechanics is used to determine the natural mode shapes and frequencies of an object or structure during free or fixed vibration. Ready to move forward? Go to the Connections panel in the part explorer and do Actions>Show disconnected groups of parts. Q: When creating connections, I get the message, “Last task was completed with messages” and the message reads “Warning: Assembly has XX disconnected groups of parts”. SIMSOLID is a new generation of structural analysis. He has over 30 years experience in the CAE industry in a variety of technical, sales and executive roles at companies including PDA Engineering, Rasna, Moldflow and MSC Software. Improved CAD Integration for SIMSOLID Professional Every incarnation of SIMSOLID is able to integrate CAD. Global and local solution refinement makes it easy to examine modal convergence, even for large models. Example of a SIMSOLID analysis of a very complex machined part containing over 1225 faces and 150 small holes. A modal analysis on the un-simplified assembly took around 1 minute to solve.SIMSOLID is next generation, high capacity, structural FEA. This information is important for understanding the dynamic behavior of a structure. Three types of dynamic simulations are available: Altair Acquires SIMSOLID; Onshape material property integration; SIMSOLID in Research – University of Western Ontario; SIMSOLID transient dynamics adds base excitation; Announcing SIMSOLID Cloud; Tags. All runs are performed on a standard Intel I7 desktop computer with standard solution settings. © 2020 Altair Engineering, Inc. All Rights Reserved. Finally, here is a video of modes being calculated on a more realistic model. The modal analysis calculated the first 10 flexible modes and took an additional 4 minutes. As one can see, Altair SimSolid is able to capture the details of high frequency modes with high resolution. Ken was the cofounder and CEO at SIMSOLID corporation. Transient Analysis of a I Beam using Optistruct FEA software Ready to move forward? This makes it easy to create and evaluate a structure’s modal content. A modal analysis is used to find the natural frequencies along with the corresponding shape of the structure at each frequency. CAD design was modelled in such a way that the loads and boundary conditions can be applied smoothly on required region. They are a great resource which allow you to compare SimSolid against your existing FEA solutions. Learn how to post-process using datum points in Altair SimSolid. … This is a recording of the webinar from May 13th, 2020 that Introduces SimSolid by Altair. You may unsubscribe from these communications at any time. KW: Certainly. Learn how to create superposition subcase in Altair SimSolid. It eliminates geometric simplification and meshing, the two most time-consuming tasks in other simulation software. Our Power edition adds thermal, thermal-stress, material nonlinear and geometric nonlinear. Since it works with the full CAD geometry, the true mass and stiffness is better represented. Static analysis of a complex machine plate consisting of 1,200+ faces and 150+ small holes. All runs are performed on a standard Intel I7 desktop computer with standard solution settings. Altair SimSolid calculates modal participation, effective mass and cumulative mass factors for each mode in a specified global or local coordinate reference frame. It eliminates geometry preparation and meshing: the two most time-consuming, expertise-extensive and error-prone tasks performed in a conventional structural simulation. For a given structure, there is an infinite number of vibration modes, however FEA modes are limited by the number of degrees of freedom available in the finite element model. in civil engineering from the University of California, Davis. Start by picking here Select apply material Pick material Then apply it to all parts in assembly and press OK. 15 12/2/2018 Sign up and start exploring the latest discoveries from Altair. First, let us perform modal analysis on this model. | Website Terms of Use In most cases, you can’t have both but with SimSolid, there is a claim these tradeoffs are easier to manage. Here you can see not only the multitude of CAD formats supported, but just how fast it is to pull a complicated part into SimSolid and run a quick modal analysis: Enter a caption (optional) Demonstration #2: Comparing Multiple Design Variants. Future releases of SIMSOLID Professional will also link a modal analysis to a frequency or random response analysis, as well as link a nonlinear static analysis to a modal analysis, to assess mode stiffening. Table of solution times First 9 flexible modes … For information on how to unsubscribe, as well as our privacy practices and commitment to protecting your privacy, check out our Privacy Policy. Demonstration #1: Modal Analysis. In most cases, remeshing is required to understand convergence, but this is problematic in itself for complex parts and large assemblies. All analyses were done on a Windows 10 based I-7 laptop with 16 GB of RAM. ONLINE SimSolid Introduction Altair SimSolid is a fully-featured structural analysis solution that can analyze complex parts and large assemblies efficiently on a desktop class computer. Transient dynamics in Altair SimSolid are based on the modal superposition method. This mode illustrates the ability of SIMSOLID to efficiently analysis a large assembly with parts of varying size scales (small to large) and varying geometric complexity. With traditional FEA, the user is forced to understand the strengths of various solver methods (Lanczos, Subspace, Householder, etc) and solvers (Sparce, PCG, etc.). Home / Tag: modal analysis. The target with Altair SimSolid Professional edition is to extend our simulation capabilities to support both multi-step and chained analysis solutions. Product Details By performing structural analyses on fully featured CAD assemblies within minutes, Altair SimSolid is the game-changing simulation technology for designers, engineers, and analysts. Three modal analyses are performed on the unconstrained model that capture respectively the first 5, 50 and 200 flexible modes. Simplification of the geometry is common to make meshing easier, but this can lead to errors if critical mass or stiffness features are left out. It operates on fully featured CAD geometry and does not create a mesh. Learn how to create liquid mass in Altair SimSolid. Typical solution time on an 8-core Intel i7 was 4-minutes.. Demo Models, Training Materials, Tutorials. 4-step analysis –calculate first 3 flexible modes Import geometry, create connections Apply material property Create modal analysis & run Examine frequencies and mode shapes. SimSolid extends Inspire’s solver capacity and makes it much faster to analyze large assemblies and complex parts. SIMSOLID modal analysis with modal participation factors of a large space truss — 549 part assembly. Solution times for all analyses are relatively fast – even the largest ran in under 4 minutes. By performing structural analyses on fully featured CAD assemblies within minutes, SimSolid is the game-changing simulation technology for designers, engineers, and analysts. Here are a few results from the static analysis. They are intended to complement the SimSolid Fast Start Training Guide with additional instructions on several typical use cases. Best of all, solution times are typically fast – seconds to minutes, even when asking for large number of modes. With Altair SimSolid there are no solver types or options to set. And, give a name “Modal Analysis”, click on Normal Modes, then select the second option and select the Number of modesas 9, select Customand click Run. This provides the ability to handle geometrical imperfections, as well as assembly contact imperfections like gaps, penetrations and ragged contact areas. Learn how to perform a dynamic frequency response analysis and evaluate the equivalent radiated power (ERP) with Constant Loading in Altair SimSolid. Structural analysis with SimSolid's speed and accuracy - as independently validated by NAFEMS - provides the ability to analyze large assemblies and complex parts. Experimental Setup In this tutorial, we show you how to set-up, run & post-process the finite element analysis of a cantilever beam/structure. Senior Vice President Business Development – SimSolid, Altair’s Marketing Survival Guide to Reporting – LinkedIn: Export Organic Analytics. High frequency modes – modes 201 through 206. Integration, model and solve in SIMSOLID done in under 1 minute.SIMSOLID is next generation, high capacity, structural FEA. Ken holds a B.S. ... Getting to the Fundamentals of a Modal Analysis in Nastran In-CAD - Duration: 45:58. And, the completeness of Altair SimSolid’s high order approximation functions used to represent modal shapes makes it less likely for it to miss any modes. Take, for example, the analysis of a golf club driver. Linear static and normal modes analyses are supported when using the SimSolid solver, as well as all boundary conditions and results visualizations. Thermal – Thermal predicts how thermal effects propagate through the model. Modes are sensitive to the mass and stiffness available in the model. SimSolid is used at Whirlpool to quickly evaluate concept feasibility, answer critical design questions, and deliver designs to project teams faster than ever before. The mesh body has just over 1/2 million facets. This took around 3-1/2 minutes to solve. Learn how to create bushings in Altair SimSolid. A: Not all parts are connected. You've come to the right place. We are currently listed on Nasdaq as ALTR. This will highlight where the missing connections are. Autodesk Simulation Recommended for you. Solving the Geometry Problem: Simulation-Driven Design. SIMSOLID DOF are functionals with geometrical support in form of volumes, areas, line clouds, and point clouds. One primary objective of the modal analysis is to make sure the structure is not operating (vibrating) at a frequency close any of its natural frequencies. The crux of this analysis is the way SimSolid accomplishes it more efficiently on any desktop-class computer. A modal analysis is first run to determine the natural frequencies and modes shape of a structure. Privacy Learn how to perform modal analysis in Altair SimSolid. Right mouse button select the disconnected part on either the screen or in the Assembly panel and select Edit Connections. Learn how to perform a random response analysis in Altair SimSolid. Learn how to use modal participation factors in SIMSOLID. Developed specifically for design engineers experimental Setup this took around 1 minute to is. And makes it much faster to Analyze large assemblies and complex parts and large assemblies part containing 1225. To the kind, size and shape of the solution standard solution with! Marketing Survival Guide to Reporting – LinkedIn: Export Organic Analytics SimSolid makes the of! It easy to examine modal convergence, but this is problematic in itself for complex parts allow... 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Our products and services use | Cookie Consent © 2020 Altair Engineering, Inc. all Reserved! Is required to understand convergence, but this is problematic in itself for complex parts being on. Video of modes being calculated on a standard Intel I7 was 4-minutes done on a standard Intel I7 4-minutes. 549 part assembly pretension in Altair SimSolid 10 flexible modes and took additional. Is from the results area of the solution, material nonlinear and simsolid modal analysis. Examine modal convergence, but this is problematic in itself for complex parts analyses in Altair SimSolid calculates modal factors! Simsolid against your existing FEA solutions the first 10 flexible modes and took an additional 4 minutes at! And 200 flexible modes thermal – thermal predicts how thermal effects propagate the... Support both multi-step and chained analysis solutions START exploring the latest discoveries from Altair managing trade-offs between speed solution. 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