Final Report on Torque with Cross Force Comparison No. MT01 ...

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<strong>Final</strong> <strong>Report</strong> of MT01Deviation in %Influence of cross force effect of ARMSTRONG1.00Customer 4.0.75Customer 5.0.500.250.00-400 -300 -200 -100 0-0.25100 200 300 400-0.50-0.75-1.00torque in N·mFigure A1-8. Scatter deviation of ARMSTRONG observed by NIMT.Deviation in %Influence of cross force effect of KANON1.00Customer 9.0.750.500.250.00-125 -100 -75 -50 -25 0-0.2525 50 75 100 125-0.50-0.75-1.00torque in N·mFigure A1-9. Scatter deviation of KANON observed by NIMT.There is possibility to assume the effect of varied cross force with in ±0.3 %,although it should be observed at minimum and maximum range so that it would becombined the influence of adaptor and staff operation.38
<strong>Final</strong> <strong>Report</strong> of MT01A.2 Creep effect of loaderFigure A2-1 shows creep behavior of the artifact that was measured by NIMT’sstandard with high resolution indicator. The deviation appeared within -0.015 % in 300second. There is no creep of mechanical loader because it was designed to apply forcewith hanging weight. The result shows only creep of transducer’s elastic property.deviation in %0.0200.0150.0100.0050.000-0.005-0.010-0.015-0.020Creep up deviation related to nominal torque0 60 120 180 240 300 360time (s)Figure A2-1. Creep deviation related to nominal torque.To be comparable, the creep was reduced again indicator that all participantsused. The results cannot show the creep behavior of artifact as shown in figure A2-2because of insufficient resolution and sensitivity.deviation in %0.050.040.030.020.010.00-0.01-0.02-0.03-0.04-0.05Creep up deviation related to nominal torque ofRigid loader and without loader at 400 N·m0 30 60 90 120 150 180 210 240 270 300 330NIMTTime in secondFigure A2-2. Creep deviation related to nominal torque.The behavior of three loader types: hanging weight, mechanical commercialdesign and mechanical laboratory design are compared and expressed in formula A2-1.Then the error of applied torque dwell times at 5, 10, 30, 60 and 90 second are evaluated.39
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Final Report on Torque with Cross Force Comparison No. MT01 ...

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