A NEW METHOD FOR THE GENERATION OF SECOND-ORDER RANDOM WAVES

In order to prevent the generation of spurious free sub- and superharmonics of random waves in a laboratory channel, the control signal for the wave board has to be derived according to a higher- order wave theory. An expression for this control signal has been derived with the perturbation method of multiple scales. It is much less complex and requires less computation time than the expressions obtained from the full second-order theory. The new method for second-order subharmonics was verified experimentally for waves with bichromatic and continuous first-order spectra. The data were analyzed with the complex-harmonic principal-component analysis to reduce the influence of noise.

• Supplemental Notes:
  • Ocean Engng, v 23 n 2, Feb 1996, p 167 [26 p, 20 ref, 1 tab, 9 fig]
• Authors:
  • Leeuwen, P J
  • van
  • Klopman, G
• Publication Date: 1996

Language

• English

Subject/Index Terms

• Old TRIS Terms: Wave generators
• Subject Areas: Marine Transportation;

Filing Info

• Accession Number: 00727510
• Record Type: Publication
• Source Agency: British Maritime Technology
• Files: TRIS
• Created Date: Nov 1 1996 12:00AM