This study investigates the safety and life during the fatigue load by the configuration of seat frame. On back frame at seat frame, the life and damage are analyzed. The deformation and equivalent stress are compared with each other through the vibration analysis, The result of this study through the analysis can be applied to develop the automotive seat frame with durabilty and safety.
초 록
The research proposes two calculation methods for estimating the overall, within and between standard deviation of population. These standard deviations can be used to evaluate the process capability and performance indexes. The guidelines for using Cpk and Ppk according to the pattern of common and assignable causes are presented.
This study is to present Chinese character notation for common use through investigation of examples and graphonomy related literature with beam and purlin of wooden members and its conclusions are as follows. It suggests two commonly used Chinese characters of beam and purlin. The first method of indicating them is Riyang(樑) for beam and Hang(桁) for purlin and the second method is Bo(保) for beam and Hang(桁) for purlin. Riyang(樑) as the first method was already used in the Joseon period and was profitable to convey limited meaning as wooden term compared to Riyang(樑) with wider meaning and Bo(保) as the second method contained logical association and hieroglyphic connection of Bo(保) as the Korean character. Hang(桁) for purl in was presented by both the first and second methods and it was already used in the Koryeo age, also commonly used as the term of purlin in China and Japan and it was also presented as letter containing logical and hieroglyphic connection with Hyeng(行).