ANSYS Expert Topics (Prior to 2014)
We hope that our web site provides a great deal of valuable technical information, which is available to anyone who visits our web site. The technical materials on this page, however, are intended only for DRD's customers, and are, therefore, password protected. We provide these materials to our customers as a benefit for doing business with DRD, and at our discretion we provide them to selected DRD friends and associates.
The topics on this page are intended for engineers who are interested in highly technical and detailed information on ANSYS. These topics contain information, which is not readily available to ANSYS users through standard documentation and training courses. For example, some topics provide information on ANSYS capabilities that are under development or are not documented.
Virtual Shaker Table Testing with ANSYS DesignLife (April 2013). This presentation content includes a recording of DRD’s webinar on this topic, which we conducted April 27, 2012. It also includes a soft copy in pdf format of the presentation. This webinar provided a comprehensive overview of ANSYS DesignLife's ability to perform a virtual shaker table test. The webinar first covers the process of predicting success or failure of a random vibration fatigue shaker table test using ANSYS and the manual Steinberg method, and this process will not use ANSYS DesignLife. The webinar then provides demonstrations of virtual shaker table tests using ANSYS Mechanical in combination with DesignLife for a single axis PSD load and a 3 axis PSD duty cycle. The webinar also describes a method for doing sine on random analysis with life prediction in the time domain, and this method may be suitable for applications such as gunfire shock. The webinar concludes with an example of a 3 simultaneous axis random vibration fatigue analysis in an ANSYS Mechanical transient dynamic model followed by DesignLife fatigue life prediction.
The webinar briefly mentions uncorrelated, partially correlated, and fully correlated simultaneous random vibration loads in ANSYS Mechanical, and also covers details of the Steinberg method for life prediction. The webinar also covers random vibration cycle counting methods in DesignLife including Lalanne, Dirlik, Narrow Band, and Steinberg as well as the calculation of apparent frequency.
For a recording of the webinar download here and for only the slides please download here. (A password is required if you have not obtained one already. Select Virtual Shaker R14 from the password topic list).
Fatigue Life Prediction with ANSYS DesignLife (April 2013). This presentation content includes a recording of DRD’s webinar on this topic, which we conducted February 5, 2013. It also includes a soft copy in pdf format of the presentation. This demonstration oriented webinar provided a brief overview of ANSYS DesignLife primarily through examples that include life prediction using stress and strain life methods, which involve nonproportional loading, experimentally measured load time histories, elastic-plastic results calculated in ANSYS, elastic-plastic correction using elastic-only ANSYS results, and random vibration duty cycles.
For a recording of the webinar download here and for only the slides please download here. (A password is required if you have not obtained one already. Select DesignLife Fatigue R14.5 from the password topic list).
ANSYS Fracture Mechanics with VCCT, J-Integral and Stress Intensity Factor (October 2012). This presentation explores fracture mechanics calculations using ANSYS Workbench and the Mechanical environment with the Virtual Crack Closure Technique. We step through some test cases in ANSYS Mechanical while comparing these with closed form hand calculations: a single edge-crack model, a double cantilever beam model and a 4 point bending model. Also shown is a weld depth optimization of a battery model using VCCT calculations in a practical application. In addition, upcoming changes to the fracture features of ANSYS R14.5 are covered.
For a recording of the webinar download here and for only the slides please download here. (A password is required if you have not obtained one already. Select Fracture VCCT from the password topic list).
ANSYS Mechanical R14 Rigid Body Dynamics and Inertia Relief Webinar Recording (October 2012). This presentation looks at doing inertia relief entirely in Workbench using the ANSYS Mechanical application. It steps through starting with a rigid dynamic analysis of a full assembly, exporting the inertial state of the various parts to a text file, and then running the inertia relief calculations on a single part using a static analysis. The presentation also looks at a comparison of the inertia relief results to the flexible transient simulation results of the entire assembly.
For a recording of the webinar download here and for only the slides please download here. (A password is required if you have not obtained one already. Select Inertia Relief from the password topic list).
Creating Coincident Nodes on the Faces of Mating Parts (August 2011). This presentation outlines the process of creating a mesh with coincident nodes on the interface of mating parts. This is useful in multi-field problems for which you want to couple some degrees of freedom on the interface of mating parts while leaving other degrees of freedom independent.
CADNEXUS/CAPRI CAE Gateway for CATIA V5 (January 2008). This is a presentation authored by Pierre Thieffry, Product Manager, of ANSYS, Inc. It provides a summary of CADNEXUS/CAPRI CAD plug in for CATIA 5. This plug in provides geometry transfer including parameters from CATIA 5 to ANSYS/Workbench V11. This plug in provides associativity between CATIA 5 and ANSYS/Workbench.
Submodeling Technique in ANSYS Workbench V11 (January 2008). This presentation discusses the use of command objects to conduct submodeling in ANSYS Workbench. The submodeling functionality has been in ANSYS for many years but is not natively implemented in the Workbench environment as of Version 11 so the technique presented here provides a way to use WB to do submodeling.
General Joints Control in ANSYS/Workbench 11 using a Commands Object (October 2007). The ANSYS/Workbench 11 general joint implementation allows separate control of the X, Y, and Z translational degrees of freedom, but it allows control of only certain combinations of rotational degrees of freedom. The presentation shows how to use a commands object to control rotational degrees of freedom of the general joint in every possible combination.
Workbench Material Property Command Objects (September 2005). This presentation shows how to extend the Workbench Simulation material model library using command objects. This is useful because Workbench does not yet support all of the material models, which are available in the ANSYS Classic environment. The presentation includes a Workbench 10.0 example of using command objects to add instantaneous temperature dependent coefficient of thermal expansion to a model, and to add a graphic to the Workbench model outline that shows the ANSYS Classic CTE versus temperature curve.
ANSYS 8.1 Segelman-Reese Von Mises Stress Calculation for PSD Spectrum Analysis (May 5, 2004). This document provides the mathematical basis for the ANSYS 8.1 Segelman-Reese Von Mises stress calculation for PSD spectrum analysis. This document will only be of interest to people who do PSD spectrum analysis.
ANSYS DesignXplorer Module Description (February 21, 2003) - This presentation describes the capabilities available within the DesignXplorer product when used in combination with the ANSYS Workbench Environment.