Time-History Analysis in RFEM - Induced Vibrations
Free Online Seminar
Everything I Expected and More
"RFEM is everything I expected and more. I’m having a blast learning the software and the webinars are fantastic."
Nicholas J. Greven P.Eng.
07/23/2019
Periodically, structures subjected to machine induced vibrations or blast loading require a dynamic analysis. A powerful yet intuitive structural analysis software is essential for these scenarios.
Recorded Webinar
Date
Event Language
EnglishContent
- Overview and features of RFEM and the dynamic add-on modules
- Natural frequency analysis utilizing RF-DYNAM Pro – Natural Vibrations
- Time-history analysis utilizing RF-DYNAM Pro – Forced Vibrations
- Example 1: Machine induced vibrations
- Example 2: Blast analysis
Length: 1:08:27 h
Time Schedule
| 00:00 | Introduction |
| 01:08 | Concept of RFEM and RF-DYNAM Pro modules |
| 04:16 | RF-DYNAM Pro – Forced Vibrations overview |
| 09:14 | Example 1: Machine-Induced Vibrations introduction |
| 13:24 | RF-DYNAM Pro – Natural Vibrations analysis |
| 23:12 | RF-DYNAM Pro – Forced Vibrations machine-induced time-history analysis |
| 37:11 | Review of machine-induced time-history results |
| 43:37 | Time-history analysis with modified structure |
| 53:05 | Example 2: Blast Analysis introduction |
| 58:34 | RF-DYNAM Pro – Forced Vibrations blast time-history analysis |
| 1:01:47 | Review of blast time-history results |
| 1:03:36 | Integration of dynamic results with design modules |
| 1:06:20 | Closing remarks |
Speaker
Amy Heilig, PE
CEO - USA Office
Sales & Technical Support Engineer
Amy Heilig is the CEO of the USA office located in Philadelphia, PA. In addition, she provides sales and technical support and continues to aid in the development of Dlubal Software programs for the North American market.
Keywords
time history time history analysis dynamics dynamic analysis forced vibrations machine induced vibrations blast analysis
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Frequently Asked Questions (FAQ)
New
Generation of Snow Loads in RFEM 6 According to ASCE/SEI 7-16 and EN 1991-1-3
The effects due to snow load are described in the American standard ASCE/SEI 7-16 and in Eurocode 1, Parts 1 through 3. These standards are implemented in the new RFEM 6 program and the Snow Load Wizard, which serves to facilitate the application of snow loads. In addition to this, the most recent generation of the program allows the construction site to be specified on a digital map, thus allowing the snow load zone to be imported automatically. These data are, in turn, used by the Load Wizard to simulate the effects due to the snow load.
New
Steel Joints | Stability Analysis Software
For the joint components, it is possible to check whether the stability failure is relevant (requires the Structure Stability add-on for RFEM 6 / RSTAB 9).
In this case, the critical load factor for all analyzed load combinations and the selected number of mode shapes is calculated for the connection model. The smallest critical load factor is compared with the limit value 15 from the standard EN 1993‑1‑1, Clause 5. Furthermore, a user-defined adjustment of the limit value is possible. Moreover, the corresponding mode shapes are displayed graphically as the result of the stability analysis.
For the stability analysis, an adapted surface model is used to specifically recognize the local buckling shapes. The model of the stability analysis, including the results, can also be saved and used as a separate model file.
- Is it possible to display the deformation analysis of a surface (limit 0.5‰)?
- How do I perform stability analysis to determine the critical load factor in RFEM 6?
- How can I optimize cross-sections within the steel design?
- Where can I find the materials for the corresponding National Annexes in RFEM 6 and RSTAB 9?
- How do I apply wind load on members of open structures?
- Is it also possible to use RF‑/TOWER Loading without the other TOWER add-on modules?
- I do not want to design a cross-section in the RF‑/STEEL EC3 add-on module. Can I quickly remove this cross-section from the selection?
- I have a roof structure resting on a steel column that runs to the foundations. The column runs through a perimeter wall that supports the false ceiling. A considerable part of the load from the roof is transferred to the wall. I want the steel column to carry all the vertical loads from the roof. How can I do it?
- Are the models and presentations from Info Day 2018 freely available, and can you send them to me?
- I encountered a sharing violation while importing a dxf file into SHAPE-THIN. What is the issue?
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