Physical parameters of surface geometry affecting tactile preference of product

• Project/Area Number: 24603014
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Design science
• Research Institution: Kyushu University
• Principal Investigator: NOUNO Kensuke 九州大学, 芸術工学研究科(研究院), 准教授 (90106774)
• Co-Investigator(Kenkyū-buntansha): 竹之内 和樹 九州大学, 芸術工学研究院, 准教授 (90207001)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000); Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2012: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
• Keywords: Tactile sense / Design of product / Kansei / Signal processing / sensibility of skin / wood / vibration / coefficient of friction / FFT / roughness

Outline of Final Research Achievements

This study aims to find physical parameters of material surface affecting preferences of product. An alternative measurement method of tactile sense by use of concrete microphone was first introduced to detect a vibration caused by human finger sliding on test piece having three dimensional surface structure usually assigned by geometrical product specifications. The sound signal caused by a finger rubbing on a test piece was next measured on thirty tree species including general wood materials. The results were analyzed in a frequency domain and provided as a useful data for further study on human tactile and preference.