Theoretical Study on the Reduction and Recovering Method
Abstract eng: A method for reducing Secondary DOF (Degree of Freedom) from a dynamic equilibrium system into was intended to reduce considerably the storage capacity and computation time. The most popular Guyan [1] method which is based on superposition of lower modes from the modal analysis is widely adopted as a basis and for further improvements in dynamic reduction procedures. As a result of neglecting the higher modes, after the dynamic responses of structures evaluated by using only the lower modes frequencies, it is not possible to recover back precisely the responses of the other reduced Secondary DOF which are obviously more dominant in higher modes. In the present works, a new method for reducing and recovering the Secondary DOF in the dynamic equilibrium system which is based on the concept of dynamic sub-structuring method is introduced herein. To improve the computational accuracy after the reduction process, a new so called Differential DOF Replacement method is also introduced.
Contributors:
Publisher:
National Technical University of Athens, 2013
Conference Title:
Conference Title:
COMPDYN 2013 - 4th International Thematic Conference
Conference Venue:
Island of Kos (GR)
Conference Dates:
2013-06-12 / 2013-06-14
Rights:
Text je chráněný podle autorského zákona č. 121/2000 Sb.
Record appears in:
Record created 2016-11-15, last modified 2016-11-15
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