A Novel Method for Hull's Three Dimensional Deformation Measurement

Abstract:

In this paper, a novel method for hulls three-dimensional angle measurement is presented. For the measurement of the transverse twist angle, a method based on moiré fringe is proposed, for the lengthways flexibility and course flexibility angle the conventional optical sensor method is applied. The principle of the measurement is discussed in detail. To verify the accuracy of the proposed method, both static and dynamic experiments are carried out. Results show that in the static states, the accuracy for them are smaller than 5'', in the dynamic states, the accuracy for them are smaller than 10''.

• Periodical: Applied Mechanics and Materials (Volume 344)
• Pages: 93-98
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.344.93
• Online since: July 2013
• Authors: Xin Ming Liu, Yao Yu Zhang, Xiao Yong Feng, Qian Xue Wang
• Keywords: Course Flexibility Angle, Deformation, Hull, Lengthways Flexibility Angle, Transverse Twist Angle

References

[1] Zhai Yusheng, Feng Qibo, Zhang Bin and You Fengling, A method of three-dimensional rotation measurement based on rectangular-prism, Acta Optica Sinica, vol. 29, pp.309-312, Dec. (2009).

[2] Chien-Ming Wu, Yi-Tsung Chuang. Roll angular displacement measurement system with microradian accuracy, Sensors and Actuators A., vol 116, pp.145-149, (2004).

DOI: 10.1016/j.sna.2004.04.005

[3] Su Shaojing and Lu Haibao, A software solution to counting and subdivision of moiré fringes with wide dynamic ranges, SPIE Pro., pp.308-311, (2000).

[4] Ichirou Yamaguchi, Ji-yuan Liu, Jun-ichi Kato. Active phase-shifting interferometers for shape and deformation measurements. J. Opt. Eng., vol 35, pp.2930-2937, (1996).

DOI: 10.1117/1.600956

[5] Ming-Hong Chin, Chin Su. Angle measurement using total-internal-reflection heterodyne interferometry. Optic Engineering., vol 36, pp.1750-1750.

DOI: 10.1117/1.601200