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| IDENTIFY DYNAMIC PARAMETER OF HYDRAULIC BLADE BASED ON TIME SERIES ANALYSIS |
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Received:August 03, 2006
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| DOI： |
| KeyWord:time series; ARMA model; natural frequency; damped ratio |
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| 1. Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China ; 2. North China Electric Power University, Beijing 102206, China |
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| Abstract: |
| The dynamic characteristic of mechanical system is a vital index of response to operation of the mechanical equipment, it is important to master the dynamic parameter of the mechanical system for a operator. The theory modal analysis and the tentative modal analysis are often adopted, which are full of import meaning to design of mechanical equipment and analyze the mechanical failure, but there are their own faults, the former needs the complicated mathematical analysis while the latter is difficult to imitate the actual conditions of mechanical equipment. This thesis presents the method to identify the parameter of mechanical system by time series analysis. This method breaks through the faults of the two methods before, and only after you achieve the response of mechanical system under the condition of unknown stimulant, you can calculate the dynamic parameter. |
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