公开(公告)号：US09766210B2

公开(公告)日：2017-09-19

申请号：US13828815

申请日：2013-03-14

Applicant: Airbus Operations, S.L.

Inventor： Desirée Guzman Rabanillo ,  Juan Ramón Astorga Ramírez ,  Javier Camacho De Miguel ,  Agustín Sáenz Fernandez ,  Maria Asunción Rivero Rastrero

IPC: G01N29/07 ,  B21J15/28 ,  G01N29/34

CPC classification number: G01N29/07 ,  B21J15/28 ,  B21J15/285 ,  G01N29/348 ,  G01N2291/2691

Abstract: A method for evaluating installation of blind rivets including measuring the “cycle time” represented “y0”, transmitting sound waves through the blind rivet installed in the structure, measuring the “travel time” represented “x0”, relating “travel time” and “cycle time”, and obtaining a pair of times (x0,y0), providing a time relation pattern establishing a borderline between an area of suitable rivets and an area of unsuitable rivets, the border represented y=f(x), so for cycle time values greater than y=f(x), it is considered a “suitable area”, for cycle time values less than y=f(x), it is considered an “unsuitable area”, representing pair (x0,y0) in the graphic representation and verifying if the value of y0 is greater or less than the value of y=f(x0), classifying installation of the rivet as suitable or unsuitable according to the verification.