ボルト締結における座面圧分布について : 座面の角度偏差が及ぼす影響(機械要素,潤滑,工作,生産管理など)

概要

論文の詳細を見る
Bearing surfaces of bolted joints have a heavy role to ensure tightening performance. The pressure distribution on the bearing surfaces is considered to be an important subject relating directly to that role. In this study, concerning the bearing surfaces of M 10 hexagon head bolts and M 10 hexagon head bolt with flange, detailed analyses are done by a finite element method to consider the pressure distribution. The main purpose of the analyses is to solve influences by inclination angle φ_p and concavity angle φ_c which are regarded as the basic quantities of the angular deviation of the bearing surface. The pressure distribution is highly sensitive to both angles. It is known that even 1° of φ_p gives too much bias to the distribution and in hexagon head bolt with flange φ_c selected properly has an effect to adjust its shape (e.g. an adjustment to make the distribution more uniform). Additionally, practical suggestions are presented about the bending moment caused by φ_p and the equivalent diameter of frictional torque influenced by φ_c.
社団法人日本機械学会の論文
2004-11-25