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    Modeling of dynamic testing of steering system tie rod assembly using hydraulic system
    (Selçuk Üniversitesi, 2024) Baysal, Selim Sefa; Akdemir, Bayram
    Steering system components transmit motion from the steering wheel to the wheels. Vehicle rotations consist of moving parts made up of ball joints. Ball joints operate at specific angles and torques. These parts are exposed to forces from the road and the vehicle during operation. Articulated parts must be tested dynamically. The backlash and torque values measured before the test must remain within the appropriate limits after the applied life test. Tie rod end and axial joint piece tested at the same time. The tie rod end and the axial joint were connected to each other and tested in the test setup. Purpose Before and after the test, it is to determine how many millimeters of movement in the body and what the torque change is for the articulated parts in both parts. Before the test, the breaking torque of the tie rod end was 7.75 nm and the operating torque was 3.12 nm. Tie rod end clearance was measured between 0.007 millimeters in the axial positive direction and -0.006 millimeters in the negative direction in the static test. The breaking torque of the pretest axial joint was 11 nm and the operating torque was 4 nm. In addition, the gap value was determined as 0.039 millimeters in the positive direction and -0.071 millimeters in the negative direction. In the fatigue test, the change in torque and clearance values for both parts remained below 10 percent at a frequency of 5 Hz and at the end of one million cycles, and the accuracy of the production parameters was ensured. The control of the hydraulic test system was checked with the Labview program and reporting was made after the test. In the study, the rod parts working on the vehicle were simulated successfully.