Light Truck Frame Joint Stiffness Study Phase 1 Final Report

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TESTING PROCEDURE The average of the nine tests for each joint (three tests on each of the three samples) was found and fit with a linear equation. The test fit average (based on nine tests) was used for comparison to the analytical results (Figure 13). These results are shown in Appendix C. The slope of the test fit average is the test stiffness of the joint. The test joint stiffnesses are tabulated in Table 2. Figure 13: Force Deflection Curve of Joint 1 Evaluating Correlation of Test Data to Analytical Results The torsional loadcases were evaluated in the same manner. The plots in these tests have a crossed pattern due to the positive and negative applied torque (Figure 14). Figure 14: Force Deflection Curve Comparing Torsional Test Results Report: A/SP-005-1 Light Truck Frame Joint Stiffness Study 45
TESTING PROCEDURE Table 2: Test Joint Stiffness Summary Kx Ky Kz Joint 1: Tube- Through-Tube (welded at both ends) 2.563 KNm/deg 2.372 KNm/deg 2.573 KNm/deg Joint 2: Box to Lipped Channel 8.415 KNm/deg 3.909 KNm/deg 50.429 KNm/deg Joint 3: Tube Through Partially Boxed Section (welded on both sides) 1.940 KNm/deg 4.211 KNm/deg 2.979 KNm/deg Joint 4: Alligator to box Section (welded to both flanges) 0.452 KNm/deg 1.081 KNm/deg 0.816 KNm/deg Joint 5: Hat Section to Box Section (welded all around) 0.116 KNm/deg 0.180 KNm/deg 0.494 KNm/deg Report: A/SP-005-1 Light Truck Frame Joint Stiffness Study 46
Page 1 and 2: Light Truck Frame Joint Stiffness S
Page 3 and 4: EXECUTIVE SUMMARY Background There
Page 5 and 6: TABLE OF CONTENTS Introduction ....
Page 7 and 8: LITERATURE SEARCH Introduction A li
Page 9 and 10: LITERATURE SEARCH Joint Stiffness T
Page 11 and 12: FINITE ELEMENT ANALYSIS Introductio
Page 13 and 14: FINITE ELEMENT ANALYSIS Defining th
Page 15 and 16: FINITE ELEMENT ANALYSIS Load Applie
Page 17 and 18: FINITE ELEMENT ANALYSIS z L: Load F
Page 19 and 20: FINITE ELEMENT ANALYSIS Table 1: An
Page 21 and 22: TESTING PROCEDURE Test Repeatabilit
Page 23 and 24: TESTING PROCEDURE Joints 1 - 4 Pneu
Page 25 and 26: TESTING PROCEDURE Joint 1 - X Direc
Page 27 and 28: TESTING PROCEDURE Joint 1 - Torsion
Page 41 and 42: TESTING PROCEDURE Joint 5 - Hanging
Page 43 and 44: TESTING PROCEDURE Joint 5 - Z Direc
Page 45: TESTING PROCEDURE Joint Stiffness S
Page 49 and 50: CORRELATION Table 3: Test and Analy
Page 51 and 52: SENSITIVITY STUDY The influence of
Page 53 and 54: SENSITIVITY STUDY C- Channel Gage C
Page 55 and 56: SENSITIVITY STUDY C- Channel Gage C
Page 57 and 58: SENSITIVITY STUDY Crossmember Gage
Page 59 and 60: JOINT STIFFNESS TOOLBOX Introductio
Page 61 and 62: JOINT STIFFNESS TOOLBOX Notes: * Mo
Page 71 and 72: APPENDIX A: ABSTRACTS Read Articles
Page 73 and 74: APPENDIX A: ABSTRACTS 7. SCF Design
Page 75 and 76: APPENDIX A: ABSTRACTS 15. Deformati
Page 77 and 78: APPENDIX A: ABSTRACTS reasonable ag
Page 79 and 80: APPENDIX A: ABSTRACTS frequency err
Page 81 and 82: APPENDIX A: ABSTRACTS 36. Dynamic R
Page 83 and 84: APPENDIX A: ABSTRACTS 43. Behavior
Page 85 and 86: APPENDIX A: ABSTRACTS 6. Connection
Page 87 and 88: APPENDIX B: MATERIAL TESTING REPORT
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APPENDIX B: MATERIAL TESTING REPORT
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APPENDIX C: TEST RESULTS Joint 1 Fo
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APPENDIX C: TEST RESULTS Joint 2 Ve
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APPENDIX C: TEST RESULTS Joint 3 To
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APPENDIX C: TEST RESULTS Joint 5 Fo
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APPENDIX D: DIAGRAM OF JOINT IN TES
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Light Truck Frame Joint Stiffness Study Phase 1 Final Report

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