Axial force measurement of the bolt/nut assemblies based on the bending mode shape frequency of the protruding thread part using ultrasonic modal analysis

Physics & Astronomy

• aspect ratio 7%
• assemblies 73%
• assembly 40%
• bolts 100%
• frequency ranges 6%
• impact tests 10%
• low aspect ratio 10%
• modal response 83%
• resonant frequencies 7%
• shift 9%
• stiffness 6%
• threads 86%
• ultrasonics 54%

Engineering & Materials Science

• Aspect ratio 12%
• Bolts 74%
• Force measurement 86%
• Modal analysis 74%
• Natural frequencies 5%
• Nuts (fasteners) 99%
• Ultrasonics 61%