Nonlinear Time History Analysis in RFEM with Machine Induced Vibrations

   Thursday, September 27, 2018
Nonlinear Time History Analysis in RFEM with Machine Induced Vibrations- 1.0 PDH

Valley Forge Casino, 1160 First Avenue, King of Prussia, PA
Meeting Area Location:  Parkview
General Admission $50; Government $35; Students $35



Occasionally, structures may be susceptible to external vibrations such as people walking, rotating machine equipment, or even blast loading.  In order to assess the impact these external loads may have on the structure, a time history analysis is needed.  Many applications capable of running a time history analysis may be limited to a linear analysis only.  Dlubal Software’s FEA program RFEM has recently added nonlinear time history analysis to eliminate any linear restrictions.    This presentation will apply a nonlinear time history analysis on an industrial steel structure with consideration of machine induced vibrations.  Linear vs. nonlinear time history will be explored and how this can influence the result output.  Furthermore, the structure’s natural frequencies will be compared to the induced vibrations to determine if resonance is an issue or if acceleration limits are exceeded requiring structure modifications.  

Amy Heilig, PE
Amy Heilig, PE is the CEO of Dlubal Software, Inc. located in Philadelphia, PA.  Amy attended Colorado State University for her bachelor’s degree before relocating to the University of Texas in Austin to earn her master’s.  After completing college, she spent several years in design engineering at Contech Engineered Solutions as well as AECOM (formally UBS) in Denver, CO.  She moved into the structural analysis and design software industry with RISA Technologies in Foothill Ranch, CA for 2 year as an applications engineer.  The opportunity to join Dlubal Software came about in 2015 when the parent company in Teifenbach, Germany was exploring the opportunity to open a subsidiary office in the USA to provide closer customer relations to existing users and to emerge into the North American market as a key competitor.  In addition to opening the Philadelphia office, she provides sales, technical support, and continues to aid in the development of Dlubal Software programs for the American and Canadian market.

Meeting schedule:
5:30 pm – 6:30 pm Social Hour
6:30 pm - 7:15 pm  Dinner (chicken/fish/vegetarian) - please note preference in response
7:15 pm Presentation

To register (REQUIRED):
Register Here (link), or you may email Niki Eno <> or call
610-594-2460, Extension 3028 by the Friday before the meeting (9/21/2018).  

Mail checks payable to SEI-Phila Chapter (or bring to the meeting) to:
SEI Treasurer Mr. James Deeney
1010 Adams Avenue
Audubon, PA 19403


**Payment must be made for the cost of dinner if you make a reservation but are not able to attend, since we must pay this cost to the caterer.**