Parameter Design Optimization Of Straight Bow Limb By Implementing Honeycomb Sandwich Structure To Increase Projecting Performance Using The Taguchi Method

Abstract

Abstract

Good performance bow limb can be acknowledge by the ability of the limb to store energy that will be transforms into kinetic energy for the arrow to be projected. Bow limb structure that made of sandwich of layered structures desired to be light in weight but also high in strength because it is use by human and bends every time and it can not break while it being used. In search for an alternative design for a bow limb, recent studies in Bio-inspired design of honeycomb shows remarkable mechanical performance of the hexagonal honeycomb that promotes a lighter structure while high in strength and have good energy absorption ability that already vastly used in many engineering applications. Hence, honeycomb sandwich structure limbs were made with several variety of parameter factors and levels. Using Taguchi method as an optimization method in order to design and to know the optimized design of honeycomb setup of honeycomb sandwich structure bow limb. Strain energy of each 18 samples were obtained using a 3- Point Bending Test simulation using ASTM D7250 as testing reference on ANSYS static structural. Non-Parametric statistical test was done to obtain which factors is the most significance to the design and use to determine. The results of this study may eventually contribute to the alternative bow limb designs.

Keywords: Bow Limb, Honeycomb Sandwich Structure, Taguchi Method, 3-Point Bending, NonParametric Test