turn on suggestions

Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.

Showing results for

- Navigation
- Simcenter
- Forums
- Blogs
- Knowledge Bases

- Siemens PLM Community
- Simcenter
- 3D Simulation - Simcenter 3D Forum
- Response analysis of a cylinder

Options

- Subscribe to RSS Feed
- Mark Topic as New
- Mark Topic as Read
- Float this Topic for Current User
- Bookmark
- Subscribe
- Printer Friendly Page

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

04-13-2017 03:54 AM

Sir

I am having a Cylindrical structure where, i want to run a harmonic response analysis to find the transfer function.

I have run a free free condition Normal mode analysis to find out the axial mode (along the length) The frequency is at 2500 Hz and i have run another normal mode analysis where i have constrained 5 DOF (Releasing the axial DOF) hear also i have got the Axial frequency around 2500 Hz.

But when i want to run them for response analysis, i have created a RBE2 element connecting at the bottom surface of the cylinder to a point which will simulate the base excitation, so I have constrained 5 DOF and I have Given 1 Enforced motion at the point, As soon i solve sol103 response analysis, the result is different from the normal mode analysis the axial frequency is shifted to 900Hz and when i plot the XY graph the resonance is in 900Hz not at 2500Hz

plz help to solve this problem

thank you

karthik

Labels:

2 REPLIES

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

04-17-2017 07:53 PM

First question: what does your handcalcl give as a frequency?

- Mark as New
- Bookmark
- Subscribe
- Subscribe to RSS Feed
- Highlight
- Email to a Friend
- Report Inappropriate Content

04-18-2017 12:19 AM

sir

I am Getting 2500 hz in handcalulation and even impact hammer testing is also giving the same frequency of 2500Hz

Follow Siemens PLM Software

© 2017 Siemens Product Lifecycle Management Software Inc