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Elements: An Engineering Simulation Blog

Serving the engineering simulation community and ANSYS and Rocky DEM users by sharing news, workshops, seminars, training, webinars, tips & tricks, and more.

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Apr
03

Resources for our customers during this COVID-19 pandemic

We would like to provide you with several updates and resources as we navigate the current Coronavirus (COVID-19) pandemic. We appreciate your ongoing partnership with us and we will continue to provide you with the highest level of service and support possible.

  • Our employees are fully enabled (and have been for many years) to work remotely and stay connected with each other and with you!
  • We have eliminated non-essential travel and most on-site interactions
  • We are utilizing web-based tools to provide virtual face-to-face meetings, services, and support.
  • All of our employees can be reached by the same phone number and email you have always used.

Resources:

  • Ansys and Rocky DEM customer support
    • Contact us at:
      • 585-623-5050 (USA)
      • 416-997-6085 (Canada)
    • Our normal business hours remain in effect
    • Visit technical support on our website for more information
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Apr
03

How to Access Ansys licensing when working remotely

Overview

The following outlines options for Ansys users to be able to work remotely with regards to licensing and remote desktop access. This includes situations where users may be traveling or temporarily working offsite.

Ansys Licensing Background

Ansys applications use a floating (network) license which can be shared across a group of users/computers connected to the same network. The Ansys applications and licensing consist of the following 3 components:

  1. The Ansys License Manager application: This software is typically installed on only a single server or workstation at a company and must always be running to handle license check out/check-in requests. Preferrably this designated computer should run 24/7. The Ansys License Manager can co-exist with other application license managers on the same server.
  2. The Ansys license file: This is a text file which will be provided by SimuTech or Ansys to install into the Ansys License Manager (which will be running on the license server). This file contains your "keys" which are unique to your company and your license server. These keys make up your pool of licenses, and control which licenses and how many will be available to users.
  3. The Ansys applications: Ansys applications (i.e. Workbench, Mechanical, Electronics Desktop, CFX, Fluent, Discovery, etc.) can be installed on many workstations on the same network and are configured to checkout/check-in licenses from the license server.

*Note: The Ansys License Manager and Ansys applications can be installed on the same computer, but is generally not recommended in a multi-user environment. Some Ansys applications use a subscription-based license, which is not covered here.

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Dec
03

For Some High-Deformation Models, You Just Gotta Remesh

NLAD meshWith the combination of increased CPU speed and advances in simulation algorithms, nonlinear analyses have become more mainstream and are now reliably and more quickly solved. One example of the advancement of algorithms is the mesh Nonlinear Adaptivity (NLAD) capabilities in ANSYS® Mechanical™ Workbench™ and MAPDL (Classic ANSYS).

Nonlinear adaptivity refers to the capability of the FEA solution process to adapt to changing conditions during a nonlinear analysis. The solution process uses a feedback mechanism to discretely or continuously adjust some internal parameters automatically so that an accurate and convergent solution is obtained.

Adaptive meshing is an example of an adaptive process. For instance, in highly nonlinear problems, excessive calculated deformation can cause analyses to fail due to poorly shaped elements. In these cases, a remesh in the middle of the nonlinear solve can return the mesh back to well-shaped elements and allow the solve to continue. In many cases, this is the only way to get a high deformation solve to converge properly.

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Oct
08

How to Extract Moments of Inertia for Point Masses … and Simplify Your Model

One question often facing engineers performing any type of simulation analysis is, “How can I simplify my model and still get accurate results?”

A case in point for FEA analyses: When engineers have a large assembly with multiple parts but are interested in the simulation results of only one of the parts, only the part of interest needs to be fully modeled and meshed. The remaining parts can be reduced to a point mass where their effects are accounted for, but they are not fully meshed. As a result, this approach significantly reduces the size of the overall model as well as the solution time. In other words, it is a much smaller model to solve.

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Aug
14

Electric Machine Design in ANSYS

As electric machines become smaller and faster, designers face the growing challenge of delivering machines that meet all the electrical, mechanical, and thermal design goals in a very limited timeframe.

Electric machine design in ANSYSElectric Machine AnalysesFor example, in the automotive industry, electrical machines commonly need to be:

  • Compact, given the limited space available
  • Lightweight and Efficient, with increased driving range and extended battery life
  • Quiet, for maximum passenger comfort

With multiple types of analyses required, designers need to seamlessly move from one analysis to another efficiently. And a problem that presents itself downstream may require that upstream analyses be revisited. For instance, if the thermal analysis reveals an overheating issue, then perhaps the upstream electrical analyses needs to be adjusted and the process started again. Furthermore, once an acceptable design is completed, the design may not yet be optimal. It just means that the design is in the ballpark.

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