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Supervised by Ministry of Industry and Information Technology of The People's Republic of China Sponsored by Harbin Institute of Technology Editor-in-chief Yu Zhou ISSNISSN 1005-9113 CNCN 23-1378/T

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Related citation:ZHAO Yang,WANG Kun.Energy density response prediction of structures with uncertainty using interval analysis method[J].Journal of Harbin Institute Of Technology(New Series),2012,19(4):96-98.DOI:10.11916/j.issn.1005-9113.2012.04.016.
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Energy density response prediction of structures with uncertainty using interval analysis method
Author NameAffiliation
ZHAO Yang School of Astronautics, Harbin Institute of Technology, Harbin 150001, China 
WANG Kun School of Astronautics, Harbin Institute of Technology, Harbin 150001, China 
Abstract:
Prediction of vibration energy responses of structures with uncertainties is of interest in many fields. The energy density control equation for one-dimensional structure is provided firstly. Interval analysis method is applied to the control equation to obtain the range of energy density responses of structures with interval parameters. A cantilever beam with interval-valued damping coefficient is exemplified to carry out a simulation. The result shows that the mean value of energy density from the interval analysis method is the same as that from a probabilistic method which validates the interval analysis method. Besides, the response range from the interval analysis method is wider and includes that from the probabilistic method which indicates the interval analysis method is a more conservative method and is safer in realistic engineering structures.
Key words:  interval analysis method  Energy Finite Element Method  uncertain structures
DOI：10.11916/j.issn.1005-9113.2012.04.016
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