Stability of Online Monitoring Stress for Shipbuilding Portal Crane

Qing Liang Niu; Wei Xiao Tang; Nan Shan; Xue Ping Zhao

doi:10.4028/www.scientific.net/AMM.541-542.1424

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 541-542Stability of Online Monitoring Stress for...

Stability of Online Monitoring Stress for Shipbuilding Portal Crane

Abstract:

The biggest problems of online monitoring stress for crane currently are the signal stability problem and the high cost problem. Aiming at these problems, the authors design the stability monitoring project for shipbuilding portal crane. The project adopts the wired monitoring method and the strain signal is amplified preliminarily at the measuring point, the combination of both which overcomes the problems of strain signal attenuation and electromagnetic interferences. The acquisition box is reset punctually to avoid the drift problem. An experiment of online monitoring stress for shipbuilding portal crane used for 5 years is done in a shipyard, and the experiment proves that the effective relative error is less than 6%. Compared with the wireless monitoring way, the project costs lower and isnt subject to electromagnetic interferences. Moreover, compared with the traditional wired monitoring way, the program has more stability signal.

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Periodical:

Applied Mechanics and Materials (Volumes 541-542)

Pages:

1424-1428

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.541-542.1424

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Online since:

March 2014

Authors:

Qing Liang Niu, Wei Xiao Tang*, Nan Shan, Xue Ping Zhao

Keywords:

Drift, Dynamic Stress, Online Monitoring, Shipbuilding Portal Crane, Stability

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* - Corresponding Author

References

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