이중구조를 가진 비공기압바퀴의 구조해석에 관한 연구 = A study about structural analysis of double structured non-pneumatic wheel

다국어 초록 (Multilingual Abstract)

Non-pneumatic wheels have been widely used instead of general tube type wheels beause of many reasons, for example, wheel size, price restriction, heavy-duty problem and so on. Almost small size wheels or casters were non-pneumatic type but structural stability was not certified. This paper presents a double structured non-pneumatic wheel, called "smart caster", which consisted with inner and outer wheels connected by chips, and finite element analysis processes were conducted in order to determine important dwsign factors before actual design for mass production. For structural analysis ABAQUS was used under various boundary conditions with incrementally varied loads until 2,000N. Then structural staility was evaluated according to varied loads below ultimate stress. Generally stresses were concentrated at the lower parts of the wheel, and especially contact parts between wheel and ground. In addition, maximum stress appeared at contact parts between the wheel lower part and chips.

참고문헌 (Reference)

1 Gough V.E., "Tyre-To-Ground Contact Stress" 2 : 126-159, 1958

2 Manesh, A., "Tension-Based Non-Pneumatic Tire, World Intellectual Property Organization"

3 Cho J.R., "Mesh generation considering detailed tread blocks for reliable 3D tire analysis" 35 : 105-113, 2004

4 Pajtas, S.R., "Honeycomb Non- Pneumatic Tire with a Single Web on One Side"

5 김광원, "Auxetic Spoke로 설계된 비공기압 타이어의 접지압" 한국항공우주학회 39 (39): 719-724, 2011

6 Alfredo, R.V., "Airless Tire"

7 Chang-Woo Son, "A study about structural analysis of non pneumatic wheel using Finite Element Method" 2014

8 Narasimhan. A, "A Computational Method for Analsis of Material Properties of a Nonpneumatic Tire and Their effects on Static Load-defleection, Vibration, and Energy loss from Impact Rolling over Obstacles"