It is the basic requirement of product characteristics to specify geometric dimensions and tolerances during design process of parts assembly. Therefore, there are many tolerance stack analysis method to explain tolerance zone. Tolerance stack analysis is to calculate gap using tolerances which includes geometric and coordinate dimension. In this study, we compared several different stack analysis method and try to suggest more general method called the Virtual Method to analyze tolerance stack.

Abstract
 1. 서론
  1.1 연구배경 및 목적
  1.2 연구방법 및 절차
 2. 이론적인 배경
  2.1 공차에 따른 형체의 이동 범위
 3. Stack Analysis 방법 제안
 참고문헌

• 김영남
• 장성호