Abstract
Developments in vehicle technology reveal that increased demands on vehicle comfort and fuel efficiency in the vehicles require to design more efficient powertrain systems. Vibrations originated in the engine need to be well optimized and controlled at desired limits. For this purpose, modal analyis for vehicle components is the main analysis method to evaluate the vibration behaviours. During vehicle design, important parameters for vehicle vibration such as inertia and stiffness are investigated and modified values to be replaced to get lower vibration values by means of the modal analysis. In this study, the truck powertrain system is modelled with real system values by the 1-D analysis software program and modal analysis is performed to find mode shapes and vibration magnitudes of the powertrain system components. Mode shapes of the clutch damper was investigated by changing damper stiffness values and the other components variables were taken constant to evaluate the stiffness effects on the system by modal analysis.
Highlights
Vibration is the mechanical oscillation movement for a mass or system around an equilibrium point
Torsional vibration behaviours of the modelled truck powertrain system is investigated and analysed by modal analysed with 1-D modelling analysis
Powertrain system components vibration mode frequencies were found by modal analysis and their behaviours were analysed based on frequency levels
Summary
Vibration is the mechanical oscillation movement for a mass or system around an equilibrium point. A statically balanced object oscillates at a certain frequency depending on its mass and its stiffness. It is called the natural frequency of that mass. Calculation of these frequencies and determination of their shape is important for engineers in terms of solving vibration-induced problems. Vibrations originating from engine are present their effects in almost all components of the vehicles. Vibration is an unwanted movement in vehicles and causes disturbing noises and energy loss at the same timeK.eFyworortdhsi:sAretalesaosnt,foituirskaeiymweodrdtso; Ibnrianlpghtahbeetviciablraotridoenr;tSoetphaerated by semicolon; Design of experiments min(iTmimumes NleevwelRwomhialne, dfoenstig9n, uinpgpetrhceasseyasttethmesbeinginthneinvgeohfiecalech. Vibration is an unwanted movement in vehicles and causes disturbing noises and energy loss at the same timeK.eFyworortdhsi:sAretalesaosnt,foituirskaeiymweodrdtso; Ibnrianlpghtahbeetviciablraotridoenr;tSoetphaerated by semicolon; Design of experiments min(iTmimumes NleevwelRwomhialne, dfoenstig9n, uinpgpetrhceasseyasttethmesbeinginthneinvgeohfiecalech. keyword)
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