Experimental Analysis and Heat Transfer Study of Damping Fluid in Hydraulic Twin Tube Shock Absorber

The Aim Of The Research Focused On The Experimental Heat Transfer Study Of The Damping Fluid In Shock Absorber Operation. The Objective Of This Study Is To Analysis The Heat Transfer Rate At Surface Absorber Body. The Shock Absorber Test Rig Was Developed To Collect Experimental Data. This Test Rig Also Useful To Test And Indicates The Condition Of Shock Absorber. A New And Modify Shock Absorber Twin Tube Type Will Be Used For This Experiment. Ethylene Glycol, Propylene Glycol Are Using As Alternative Substance For Damping Fluid To Improve The Air Gap Between The Internal And Outside Body. Ten Cycles Of Bounce And Jounce Shock Absorber Operation Before Heat Transfer Were Measured. The Problem Of Overheating Will Be Effect Of Damping Fluid Characteristics And Decrease Shock Absorber Performance. However, Using Additive On Damping Fluid With Ethylene Glycol, Propylene Glycol Will Be Good Substance To Improve Heat Transfer Inside The Shock Absorber. Propylene Glycol As A Substance Can Be Increased Heat Transfer Inside Absorber Up To 39%. Furthermore, Ethylene Glycol Has A Higher Thermal Conductivity And Increasing Heat Transfer Rate Better Than Propylene Glycol; The Result Shows That Using Ethylene Glycol The Can Increased The Rate Of Heat Transfer Up To 52%. Finally, Additive With Higher Thermal Conductivity As The Substance Should Give Better Heat Transfer Rate From Inside Absorber To Surroundings.