All Categories : Technical White Papers : CAE and FEA Bookmark and Share

Title : Abaqus-based verification of the Rayleigh damping matrix in dynamic analyses for NPP civil structures
Company : SIMULIA
File Name : abaqus-based-verification-rayleigh-damping-matrix-2008.pdf
Size : 138674
Type : application/pdf
Date : 09-Jul-2011
Downloads : 2

Rate This File
5 Stars
4 Stars
3 Stars
2 Stars
1 Star

In dynamic analysis of NPP civil structures the most suitable method proved to be the method of direct integration of equations of motion of the structure-soil system. This method takes account of geometrically nonlinear effects and dashpots with high level of attenuation. In addition, this method allows for receiving a highly effective solution for some types of NPP civil structures. However, the analysis of resultant response spectra has showed a high level of spectral accelerations at elevations of equipment arrangement. One of the main reasons of such result is in a high degree of conservatism, which provides for usage of the Rayleigh damping in material as compared with modal damping. This study describes an approach allowing to receive an improved damping matrix as a Caughey series that brings to diminishing conservatism when defining a dynamic reaction in the system. The study investigates influence of a number of the Caughey series terms to be accounted when defining the improved damping matrix. As a result, there are given also the floor response spectra for a real building considering damping in material as a Caughey series. The dynamic analysis has been implemented within Abaqus software frames.
User Reviews More Reviews Review This File
SolidCAM - Learn More

Featured Video
Editorial
Jobs
QA Engineer- F-35 Quality Engineering for Lockheed Martin at Forth Worth, Texas
Modeling and Simulation / HWIL Engineer for Lockheed Martin at Orlando, Florida
Senior Operations Environmental Analyst for EDP renewables at Houston, Texas
Structural Engineer for Design Everest at San Francisco,, California
Structural Engineering Lead for K2M Design at Cleveland, Ohio
Engineer A, B or C (Transportation) for City of Austin at Austin, Texas
Upcoming Events
EMO Hannover 2019 at Hannover Germany - Sep 16 - 21, 2019
WESTEC 2019 at Long Beach Convention & Entertainment Center 300 East Ocean Boulevard Long Beach CA - Sep 24 - 26, 2019
Engineer 3D! at Potawatomi Hotel and Casino 1721 W Canal St, Milwaukee, WI 53233 Milwaukee, WI WI - Oct 2 - 3, 2019
3D Collaboration & Interoperability Congress - 2019 at American Mountaineering Center Golden CO - Oct 8 - 10, 2019
Kenesto: 30 day trial
MasterCAM



Internet Business Systems © 2019 Internet Business Systems, Inc.
25 North 14th Steet, Suite 710, San Jose, CA 95112
+1 (408) 882-6554 — Contact Us, or visit our other sites:
AECCafe - Architectural Design and Engineering EDACafe - Electronic Design Automation GISCafe - Geographical Information Services TechJobsCafe - Technical Jobs and Resumes ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise