each other, five rivets were installed with each permutation of the tools. This leads to nine permutations of tools configurations to test. Cumulatively, 90 rivets were installed during the testing. Data is collected using a National Instruments PXIe 1082 machine running a custom controller in LabVIEW and be processed in MATLAB. Sensors Data was collected various sensors over nine different channels during automatic testing and six different channels during manual testing. A summary of these channels and of their respective rates of acquisition is presented below in Table 1. 1: Test Bench Testing (TB) Manual Testing (M) Sample Sample Sample Sample Gun Bucking Bar Rivet Gun Bucking Bar rate rate rate rate (kHz) (kHz) (kHz) (kHz) Shock Shock Shock Shock 20 20 20 20 Accelerometer Accelerometer Accelerometer Accelerometer Tri-Axial Tri-Axial 20 10 20 10 Load Cell Load Cell Accelerometer Accelerometer Laser 10 5 20 - - Load Cell Microphone Displacement Laser 5 - - 10 - - Flow Rate Displacement 20 - - Microphone 10 - - Flow Rate Testing Automatic testing is conducted the automated test bench located in the BARC on the University of Washington campus in Seattle. For manual testing, two experienced Boeing mechanics install an identical set of rivets as the Test Bench. This part of the test gives insight into how well the test bench replicates the riveting process. Performance quantification In order to determine how well a riveting tool performs, the quality of the rivet is observed. For a rivet to be within specification, the tail (the end of the rivet on the bucking bar side) height and diameter must be within predetermined bounds specific to each type of rivet. Results
each other, five rivets were installed with each permutation of the tools. This leads to nine permutations of tools configurations to test. Cumulatively, 90 rivets were installed during the testing. Data is collected using a National Instruments PXIe 1082 machine running a custom controller in LabVIEW and be processed in MATLAB. Sensors Data was collected various sensors over nine different channels during automatic testing and six different channels during manual testing. A summary of these channels and of their respective rates of acquisition is presented below in Table 1. 1: Test Bench Testing (TB) Manual Testing (M) Gun Sample rate (kHz) Bucking Bar Sample rate (kHz) Rivet Gun Sample rate (kHz) Bucking Bar Sample rate (kHz) Shock Accelerometer 20 Shock Accelerometer 20 Shock Accelerometer 20 Shock Accelerometer 20 Tri-Axial Accelerometer 20 Load Cell 10 Tri-Axial Accelerometer 20 Load Cell 10 Load Cell 10 Laser Displacement 5 Microphone 20 - - Laser Displacement 5 - - Flow Rate 10 - - Microphone 20 - - Flow Rate 10 - - Testing Automatic testing is conducted the automated test bench located in the BARC on the University of Washington campus in Seattle. For manual testing, two experienced Boeing mechanics install an identical set of rivets as the Test Bench. This part of the test gives insight into how well the test bench replicates the riveting process. Performance quantification In order to determine how well a riveting tool performs, the quality of the rivet is observed. For a rivet to be within specification, the tail (the end of the rivet on the bucking bar side) height and diameter must be within predetermined bounds specific to each type of rivet. Results
Riveting_Zaklit.docx