Ansys beam probe i and j

Hello, i am new to ansys and dont have much idea about this software, i just used it to calculate the harmonic response of simplest beam by watching the youtube video and i thought that's it what i need to continue my work in matlab. You will have to show us the process. How did you get the dynamic model of the mechanical part? What's the use of the Ansys analysis if you can not use it to derive your dynamic model?

Hello, thank you for your reply. Rotary Link. To find stiffness of the beam linear and angular - the videos i found on internet have 2 objects and then they attach spring to find stiffness but in my case its already a beam so couldn't find any tutorial to follow. To find moment of inertia of the beam and point mass - i can see the moment of inertia in the "details" but can find the inertia only when i select the geometry of specific part.

Reverse setup: 2 things i need to calculate to select a motor for the beam to rotate.

Intro to ANSYS ACT for Mechanical

Adding point mass: need suggestion for this confusion: when i just selected the face and added point mass, it was just point mass, i couldn't apply any forces or other features on it. I just tried random things like remote displacement, randomly added point mass, random value force just to check the changes.

Is this some kind of axis indication? Does lp1 mean x-axis? Or something like this? Please find sometime to answer. Stiffness is a property that can be measured between two points. What two points do you want to use to define stiffness? Stiffness is also directional. A beam has different stiffness for deformation in the X, Y and Z directions as well as torsional stiffness about Rx, Ry and Rz. You have to define stiffness more clearly. You show a solid plate for the flexible beam. Don't use a solid, use a surface body, mesh it with shell elements and assign them a thickness property.

Here is a 0. The point mass is scoped to the short edge of the cantilever. Note that this is a true point mass.Here is my list in order of increasing complexity and modeling fidelity:. This article covers methods A force of lbs is applied at the end of steel plate and the C channel is fixed at the bottom as shown. This is the simplest connection. Bolts and nuts are removed from the assembly.

A bonded connection is created around the bolt hole as shown. The bonded region simulates friction grip of the joint around the bolted connection. This type of connection is ideally used in the global analysis of large assemblies where modeling of bolts will become computationally intensive. A key assumption here is that the bolted joint maintains its friction grip and does not slip.

A subsequent sub-modeling analysis of this bolted connection with 3D solid bolts will reveal its true integrity i. The bonded connection enables linear analysis which is much faster than a non-linear contact. The way to create Beam bolts is to import the CAD file into design modeler and use bolt and nut head boundary edge to create imprints on the plate surfaces in contact with the bolt and nut see image below.

If a washer is used, then use the washer boundary edge for imprinting. For reference and mobile surfaces use the hexagonal or circular imprints created in design modeler.

Beam Bolts. The red lines represent constraint equations that connect the beam element to bolted faces hexagonal imprints. The beam connection creates constraint equations between beam nodes and reference and mobile surfaces. The behavior can be set to rigid or deformable, although none of these options can capture the true stiffness of bolt head and nut. The bolt pretension can be computed using the following formula. In earlier versions APDL commands can be used.

The contact between the mating plates is set to frictional. The third type of bolted connection is a spring bolt. It is applied in a similar manner to beams. A pretension or pre-load value is defined in the details of spring joint.Problem Specification 1. Geometry 3. Mesh 4. Setup Physics 5. Solution 6. Results 7. Consider the beam in the figure below. There are two point forces acting on the beam in the negative y direction as shown.

Note the dimensions of the beam. The Young's modulus of the material is 73 GPa and the Poisson ratio is 0. We'll assume that plane stress conditions apply. At the left hand side of the workbench window, you will see a toolbox full of various analysis systems. In the middle, you see an empty work space. This is the place where you will organize your project.

Now, we just need to work out each step from top down to get to the results for our solution. We will first specify the material properties of the crank. In the Crank cell, double click on Engineering Data. This will bring you to a new page. The default material given is Structural Steel. We will use this material and change the Young's modulus and Poisson's ratio.

Remember to check that you use the correct unit.It is available for Workbench, Mechanical, Fluent, and others. It uses Python 2 and in Mechanical it allows much of the standard click operations to be accessed programmatically. It is accessed by clicking the white rectangular icon next to the Help menu by default on pre tabbed interfaces - in ANSYS R2, the program uses a tabbed interface. You issue commands in the command line darkened area at the bottomand see results in the area above it.

The console features auto-completion and can be used interactively, especially while developing new script. There is a pane on the left which holds Snippetswhich are simply files storing code for reuse.

You can create your own snippets for actions that you want to remember or perform more than once. You do this by clicking on the Add Snippet button left most icon in the snippet portion of the toolbar. Then, when you click on the snippet from the Bookmarks pane, the code is simply inserted into the command line and can be executed by pressing ENTER. This might be useful if you or your company has a set of scripts that you use.

To use this functionality, create a new group and give it a name. Drag your snippets into it. This exports all of the snippets, including the default ones that came loaded when you opened the console.

These can easily be removed by editing the XML file after it is saved. In the XML file, find the group that has the name of your group, and delete everything else, not including the parent xml tags. For example, if I add the following snippet Snippet 1 and group My Snippets :. In this case I will want to simply delete the folder item with the label of Folder redsince that is the code not pertaining to my custom folder. As you will see, the code is simply inserted into the bookmark field; in this case the code is print Hello World!

The API is how operations and objects in Mechanical are retrieved and manipulated. From this you can access all other objects using Python dot syntax. Listed below are some of the objects in Mechanical and their classes and access points.Learn more about SimuTrain or get started today by purchasing your subscription.

PSD is statistical in nature and as a result of the solution technique, many results that would typically be available in WB Mechanical for a classic static structural analysis, are not natively available in WB for a PSD analysis.

This document discusses and presents the command language that is available for an analyst to extract force reaction results for beam connections used in WB Mechanical in a PSD analysis.

There is also discussion given to obtain results at various confidence intervals 1-sigma, 2-sigma, 3-sigma. This connectivity between the systems is first set up on the WB project page, which is illustrated in Figure 1. The modal analysis can be performed as usual. However, in the Output Controls of the Modal analysis, the option to output nodal forces must be set to YES Figure 2thereby populating the results files with the necessary data to later extract beam forces from the PSD analysis.

The other output options are at the discretion of the analyst, depending on what other results are required in post-processing. Beam connections are created in WB Mechanical under the Connections branch.

However, the beam elements are not actually created and assigned element numbers until the solve process. Therefore, it is not possible to know upfront what number is assigned to each beam element and, as shown later, the beam element numbering scheme is pertinent to post-processing the results. To address this, it is necessary to insert a Command Snippet under each beam connection. In the above command line, the numeral 1 increments for each beam.

Therefore, the above command is intended to define a numerically unique parameter e. See Figure 3 below to illustrate the unique sequential numbering of each beam. After a modal analysis has been setup and connected to a PSD analysis, the procedure to extract force reaction results from beam connections is fairly straightforward.

Need help with Simple Flexible beam and dynamic model of mechanical part

The results obtained using this approach will give results in the global Cartesian coordinate system for the 1-sigma confidence interval. An example is illustrated in Figure 4. Begin DO loop to process through each beam connection individually!

Conclude the DO loop. Once solved, the results will then be printed node-by-node, in the global Cartesian coordinate system, for each beam element in the Solver Output, which is available from the Solution Information branch. An example is illustrated below in Figure 5. Because the leading command was SET,3,1, the results are for the 1-sigma confidence interval. There is discussion later for obtaining results at other confidence intervals.

Similar to the previous option, the procedure again is fairly straightforward. An example is illustrated in Figure 6. Once solved, the results will then be printed element-by-element, in the Solver Output, which is available from the Solution Information branch.

An example is illustrated below in Figure 7. A PSD analysis is statistical in nature.

Retrieve Beam Reaction Forces In ANSYS® Random Vibration Analysis

Therefore, the results are also statistical, to include the beam force reaction results.All invoicing will be done via PayPal, and payment is due within 48 hours of the issuance of the PayPal invoice. Click Here to reserve a Free Kindle Book Posting. Experience has shown most books priced at 99 cents tend to do well and books priced higher do not. I do not utilize a percentage of revenue model (based upon the reported sales on my affiliate codes) as some sites do, as I want to keep it simple for me and potentially cheaper for you as an advertiser.

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ANSYS Workbench Tutorial - Simply Supported Beam - Center Load - PART 2

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