×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here
*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Proportional Damping Coefficients for Aerospace Aluminum in Landing Gear Analysis
2

thread6-355402

Proportional Damping Coefficients for Aerospace Aluminum in Landing Gear Analysis

Proportional Damping Coefficients for Aerospace Aluminum in Landing Gear Analysis

(OP)
Hi -

How do you determine/find data on the Rayleigh Damping coefficients for an aluminum structure, specifically a skid landing gear. After assessing my simulation, it's clear that I need to include damping in my FEA model - but I do not know how to obtain the proportional damping coefficient for aluminum, if there is nay way at all. Any help or reference would be appreciated.

Is there any conventional way to obtain the damping coefficients? Is there any tabulated data available?

Thanks

RE: Proportional Damping Coefficients for Aerospace Aluminum in Landing Gear Analysis

2
What you do is take a hammer/load cell and an accelerometer and go and find a similar structure and whack one or the other with the other or the one and measure the response with the third.

Alternatively about 2% if welded, 5% if bolted. YMMV.

Cheers

Greg Locock


New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?

RE: Proportional Damping Coefficients for Aerospace Aluminum in Landing Gear Analysis

Beating things with hammers is good..... ;)

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!

Resources

White Paper: Industrial Control Basics: Contactors
A contactor is an electrical device used for switching an electrical circuit on or off. Considered to be a special type of relay, contactors are used in applications with higher current carrying capacity, while relays are used for lower current applications. Download Now
Research Report: State of IoT Adoption in Product Development 2019
This research report, based on a survey of 234 product development professionals, examines the current state of Internet of Things (IoT) adoption by product design teams, its perceived importance, and what features and capabilities teams consider important when making decision about adding IoT functionality to their products. Download Now
Research Report: Augmented Reality for Maintenance, Repair and Overhaul (MRO)
The term Industry 4.0 denotes a cluster of technologies that’s poised to fundamentally reshape manufacturing and bring about a new industrial revolution. These include 3D printing (AM), the Industrial Internet of Things (IIoT), artificial intelligence (AI) and mixed reality technologies, more commonly known as virtual reality (VR) and augmented reality (AR). Download Now
Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close