Fastener tightening control system in an assembly and method for controlling the tightening of a fastener in an assembly
AssigneeLisi Aerospace
InventorClément Rousseau
Life of this patent
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Abstract
A system for controlling the tightening (10) of a fastener (12) in an assembly (36). The fastener (12) has a rod (14) and an assembly member (16). The control system (10) includes a first measuring device (44) suitable for measuring a first parameter representative of the temporal response of the rod (14) to ultrasonic excitation, a second measuring device (46) suitable for measuring a second parameter representative of the frequency response of the rod (14) to ultrasonic excitation, and a calculator (48) suitable for determining a value of the rod tightening (14) as a function of at least the first parameter and the second parameter.
Claims10
A control system for controlling the tightening of a fastener in an assembly, said fastener comprising a rod and an assembly member, the control system comprising:
- a first measuring device, the first measuring device being suitable for measuring a first parameter representative of a temporal response of the rod to ultrasonic excitation,
- a second measuring device, the second measuring device being suitable for measuring a second parameter representative of a frequency response of the rod to ultrasonic excitation, and
- a calculator, the calculator being suitable for determining a value of the rod tightening as a function of at least said first parameter and said second parameter.
Dependencies are inferred from the claim text.