ABSTRACT

An integrated real time simulation and experiment programme has been carried out at Trelleborg Technical Centre to ensure that any temperature rising inside an anti-vibration part will not exceed the design requirement during the accelerated fatigue tests. A typical application is for an accelerated fatigue test where it is necessary to have intervals. A thermometer was introduced into the centre area of the rubber spring and the dynamic signals in a time domain under different loading frequencies were recorded in the data processing equipment. A number of parameters are needed for the heat generation simulation. There is a good agreement between the simulation and the test covering the different frequencies and time duration. It is shown that this methodology is reliable and can be used to evaluate the temperature effects due to dynamic loading. A detailed thermal stress analysis can also be carried out by feeding back the thermal effects.