In automobile engines,it is commonly known that the proper removal of the excess heat,resulting from internal combustion,is of high significance in the prevention of numerous negative consequences.In this regard,the r...In automobile engines,it is commonly known that the proper removal of the excess heat,resulting from internal combustion,is of high significance in the prevention of numerous negative consequences.In this regard,the radiator has a pivotal role as the main component of the engine’s cooling system.Hence,its design and analysis are highly important,requiring more comprehensive failure and flow investigations.In this work,a Scania radiator is examined under the thermal and mechanical loads,followed by its analysis under the combined thermomechanical loading.Then,the flow characteristics,including the velocity,pressure,and enthalpy,are studied.In this regard,PTC-Creo software is utilized.The results demonstrate that thermal stress causes seven times more displacement than a mechanical one.When they are combined,this value reaches 1.5 mm.Also,the maximum failure index value of the Tresca theory is around 4.58,observed at the inlet side of the radiator.Besides,this paper indicates that the PTC-Creo can be considered a reliable and economical tool for the simulation of industrial applications,such as the considered radiator of a heavy-duty cooling system.展开更多
In this work,a typical vehicle engine is modeled within PTC-Creo software,and its thermal,mechanical,and thermo-mechanical performance are evaluated.This is followed by the vibrational,fatigue,and buckling analy...In this work,a typical vehicle engine is modeled within PTC-Creo software,and its thermal,mechanical,and thermo-mechanical performance are evaluated.This is followed by the vibrational,fatigue,and buckling analysis of the assembly of components,which are the predominant failure causes.The results show that the least temperature gradient occurs in the center of the pin,which connects the piston to the connecting rod,the maximum displacement is seen just below the piston head,and the thermo-mechanical failure is caused mostly(about 85%)by the mechanical load rather than the thermal one.Also,in fatigue analysis,the minimum and maximum values for the safety factor are 0.63 and 5,respectively.The results can prevent the reoccurrence of similar failures and help the enhancement of the components’design and manufacturing process.展开更多
文摘In automobile engines,it is commonly known that the proper removal of the excess heat,resulting from internal combustion,is of high significance in the prevention of numerous negative consequences.In this regard,the radiator has a pivotal role as the main component of the engine’s cooling system.Hence,its design and analysis are highly important,requiring more comprehensive failure and flow investigations.In this work,a Scania radiator is examined under the thermal and mechanical loads,followed by its analysis under the combined thermomechanical loading.Then,the flow characteristics,including the velocity,pressure,and enthalpy,are studied.In this regard,PTC-Creo software is utilized.The results demonstrate that thermal stress causes seven times more displacement than a mechanical one.When they are combined,this value reaches 1.5 mm.Also,the maximum failure index value of the Tresca theory is around 4.58,observed at the inlet side of the radiator.Besides,this paper indicates that the PTC-Creo can be considered a reliable and economical tool for the simulation of industrial applications,such as the considered radiator of a heavy-duty cooling system.
文摘In this work,a typical vehicle engine is modeled within PTC-Creo software,and its thermal,mechanical,and thermo-mechanical performance are evaluated.This is followed by the vibrational,fatigue,and buckling analysis of the assembly of components,which are the predominant failure causes.The results show that the least temperature gradient occurs in the center of the pin,which connects the piston to the connecting rod,the maximum displacement is seen just below the piston head,and the thermo-mechanical failure is caused mostly(about 85%)by the mechanical load rather than the thermal one.Also,in fatigue analysis,the minimum and maximum values for the safety factor are 0.63 and 5,respectively.The results can prevent the reoccurrence of similar failures and help the enhancement of the components’design and manufacturing process.
