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Simulation of Journal Bearings Using Tribo-X inside Ansys

Overview

Training Advanced

Learn how to design and optimize state-of-the-art hydrodynamic journal bearings so that bearing damage can be avoided. This training is offered as a 2-day course.

Duration
2 days

Prerequisites
Basic knowledge of Ansys Mechanical

Software used
Ansys Mechanical, Tribo-X inside Ansys

Benefits
  • Become familiar with influencing variables on the operating behavior of bearings
  • Workflow for the optimization of bearings with and without mixed friction
  • Exercises on the simulation of bearings with Tribo-X inside Ansys
  • “Tribo-X inside Ansys” license free of charge for 3 months

Description

With Tribo-X inside Ansys, CADFEM and Tribo Technologies have developed a solution that enables convenient and efficient calculation of hydrodynamic radial bearings in Ansys Workbench. In this training course, you will learn which properties significantly determine the operating behavior of a radial bearing and what role is played by elastic deformations, deviations in shape and position, as well as thermal effects. In addition, you will gain knowledge on how the mixed friction state of a bearing can be evaluated. Through an operating-point-dependent determination of bearing coefficients, you will be able to better understand the vibration behavior of plain bearing shafts. A parameterization of the bearing model allows you to make a holistic optimization of the shaft-bearing housing system for the respective application. We will work with practical example exercises.

The training course is aimed at all those interested in the great potential of virtual product development and who would like to design and analyze state-of-the-art hydrodynamic radial bearings. Building upon your knowledge of lubricated bearings and will explore the possibilities of an efficient and damage-free design of bearings. Including “Tribo-X inside Ansys” license free of charge for 3 months!

Detailed agenda for this 2-day training

Day 1

01 Theoretic backgrounds on hydrodynamic (HD) bearings

  • Tribology of the bearing: friction, lubrication, wear
  • Lubricants and their properties
  • Design according to DIN 31652, VDI 2204 and ISO 7902
  • Numerical calculation method
  • Effect of rough surfaces on the bearing operation (Stribeck curve)

02 Tribo-X inside Ansys

  • Introduction to Tribo-X inside Ansys
  • Preparing CAD geometry and meshing
  • Defining lubricant supply and operating conditions
  • Significance of cavitation and turbulence for bearing operation
  • Options for evaluating the results
  • Exercise: Hydrodynamic analysis of a bearing

03 Elasto-hydrodynamic (EHD) bearing analysis – influence of elastic deformations

  • Influence of elastic deformations on the load-bearing capacity
  • Significance of bearing geometry and the material selection
  • Notes on meshing the bearing environment
  • Exercise: Elasto-hydrodynamic (EHD) bearing analysis – significance of elastic properties

04 Mixed friction stressed bearings

  • What is mixed friction?
  • Significance of liquid friction and solid friction
  • Considering rough surfaces in the bearing analysis
  • Exercise: Determining the Stribeck curve for a bearing

Day 2

05 Thermo-elasto-hydrodynamic (TEHD) bearing analysis – influence of thermal effects

  • Significance of heating for the bearing
  • How is a thermal simulation carried out in Tribo-X inside Ansys?
  • Thermal interaction between the lubrication gap and the bearing environment
  • Influence of mixed friction on the bearing temperature
  • Exercise: TEHD bearing analysis with and without mixed friction

06 Calculation of dynamically operated bearings – transient simulations

  • Particularities of transient bearing calculations
  • Setup of a transient calculation model
  • Periodically and non-periodically stressed bearings
  • Exercise: Analysis of a run-up

07 Bearing shape and position deviations

  • Which shape and position deviations may arise?
  • How are shape and position deviations taken into account in Tribo-X inside Ansys?
  • Influencing the bearing behavior through wear
  • Exercise: Analysis of a system with shaft tilting and a bearing with wear depression

08 Additional functions

  • Dynamic bearing properties and their significance in rotor dynamics
  • Derivation of the stiffness and damping coefficients with Tribo-X inside Ansys
  • Influence of the bearing design on the rotor-dynamic bearing coefficients
  • Parameterization options in

Your Trainers

Vincent Hoffmann
Project Engineer, Tribo Technologies GmbH

Placement in the CADFEM Learning Pathway

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CADFEM France SAS is recognized as a certified training organization in France. You can therefore apply to your OPCO to be reimbursed.

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Jump start to practice!

To enable you to immediately start making use of your new knowledge we will provide you with a free 3-month duration Tribo-X inside Ansys license at the end of the course. 

 

Do you have questions on the training?

When will I receive the final confirmation for my training booking?

Straight after you sign up, an automatic confirmation of receipt will be sent to the email addresses you provided. Once you have successfully verified the data you provided, you will receive your personalized sign-up confirmation, containing further information on course fees, the billing address, etc., by email within two to three working days.  

As soon as the minimum number of attendees has been reached, you will receive a final training confirmation containing further information. If you have booked an on-site training, we recommend that you wait until you have received this final confirmation before booking your travel and accommodation.

If the minimum number of attendees is not reached, we reserve the right to cancel the training seven days before it is due to start at the latest. We are happy to inform you on changing your booking to an alternative date. Please note that we accept no liability for hotel or travel bookings that attendees have already made.

When is the sign-up deadline for a training?

Training places will generally be allocated based on the order in which attendees sign up. For this reason, we always recommend booking for your desired date as early as possible.

As long as a coures still has free places, it can be booked.

At what time do the training courses begin and end?

Usually the training courses start at 9:00 am and end at 5:00 pm of the respective local time. The actual course times will be stated in the booking confirmation. Please note that, depending on the training host, there may be a possible time shift between your and the provider's local time. Therefore all local times are provided with the valid time shift to Greenwich Mean Time (GMT). 

What are the methods used?

Course, demonstration and practice on the software. Training materials are in English language.

What are the evaluation methods during this training?

The training includes intermediate and final exercises to practice the elements covered in the training. The trainer will present the resolution of these exercises and will check the good understanding of each module of the course with the help of MCQ. A training certificate will attest to the validation of the knowledge assessment for each module and for the overall training.

Accessibility

Our training courses are accessible to everyone according to the defined prerequisites. However, if you have specific needs or requests for adaptation to our training courses and/or training center, do not hesitate to contact our Disability & Quality Referent.

Technical Manager
Disability and Quality Referent
Office Manager