Full Content is available to subscribers

Subscribe/Learn More  >

Shape Design Using 1/F Fluctuation Characteristics

[+] Author Affiliations
Katsuhiro Maekawa

Ibaraki University, Hitachi, Ibaraki, Japan

Paper No. DETC2009-87785, pp. 1017-1023; 7 pages
  • ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 29th Computers and Information in Engineering Conference, Parts A and B
  • San Diego, California, USA, August 30–September 2, 2009
  • Conference Sponsors: Design Engineering Division and Computers in Engineering Division
  • ISBN: 978-0-7918-4899-9 | eISBN: 978-0-7918-3856-3
  • Copyright © 2009 by ASME


An attempt has been made to develop a method of introducing 1/f fluctuation characteristics into aesthetic objects. First, topographic features of various tea bowls are measured using laser metrology, and their wave patterns are analyzed by the FFT and characterized by using power spectrums. The quantification of an affective factor involved on the outer surface of the tea bowls shows that the handmade tea bowls have an inclination close to −1 on the spatial frequency-power spectrum diagram, which means that it has 1/f fluctuation characteristics. A mass-produced one, on the other hand, tends to have an inclination of near −2, which gives us a monotonous or dull impression. Next, the 1/f fluctuation property is applied to shape design, in which the surface of a tea bowl is created using the measured texture. Rapid prototyping technology is employed to substantiate the model, and it has been confirmed that the accuracy of duplicates is satisfactory. Finally, a mathematical model with 1/f fluctuation characteristics is illustrated to mimic a real handmade tea bowl by using the proposed method.

Copyright © 2009 by ASME
Topics: Design , Shapes



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In