Transactions of the Korean Society of Automotive Engineers (한국자동차공학회논문집)

The Korean Society of Automotive Engineers (한국자동차공학회)
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The Curve Equation of a Flat Wiper Spring Rail Inducing Uniformly Distributed Loads

균일 분포하중을 주는 플렛와이퍼 스프링레일의 곡면형상식 유도

  • Yoon, Young-Sam (Department of Mechanical Engineering, Kyungpook National University) ;
  • Kim, Cheol (Department of Mechanical Engineering, Kyungpook National University)
  • 윤영삼 (경북대학교 기계공학부) ;
  • 김철 (경북대학교 기계공학부)
  • Received : 2009.09.09
  • Accepted : 2009.10.27
  • Published : 2010.07.01
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Abstract

Recently, the flat wiper which is one piece wiper and subjected to a pressing force at a single center point is gaining wide applications on automotive windshields. However, nonuniform reactive pressure distributions takes place, so that wiping is not completed at such locations. The wiping performance of the flat wiper is best when a wiper and a curved windshield have perfect contact without gaps under the specified pressing force of 13 ~ 15 gf/cm. Therefore, it is necessary that the realistic curvature equation of a wiper spring-rail should be obtained. Finite element analysis, CATIA script-macro function, and the least square method were utilized to find out the curvature of a spring-rail for a perfect contact with a windshield under a specified concentrated load. The curvature equation became the third order polynomial.

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References

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