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| Determination Method of Environmental Factors for Same Kind Products and Its Application |
| Received:May 26, 2013 Revised:September 01, 2013 |
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| DOI：10.7643/issn.1672-9242.2013.05.013 |
| KeyWord:environmental factor reliability data environmental test cannon fire system |
| Author | Institution |
| DING Guang-yu |
Northwestern Polytechnical University，Xi’an，China;Unit67870of PLA，Huayin，China |
| LU Shan |
Northwestern Polytechnical University，Xi’an，China |
| Yan-cheng |
Unit67870of PLA，Huayin，China |
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| Abstract: |
| The experiment data of same kind products under different test environments were considered as an integrated whole. On the basis of this, two methods used for environmental factors determination were put forward, and the formulae to evaluate environmental factors were established on basis of the maximum likelihood estimation and the moment estimation of mixed Poisson random variables. The accuracy of environmental factors determined by the two methods was analyzed by numerical simulation. Finally, the methods established were applied to evaluate the environmental factors in cannon fire system, and reasonable results were obtained. |
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