This paper presents an example of solving the parameter identification problem in case a robot with two degrees freedom. In this study, weighted recursive least squares algorithm was generalised to nonlinear parameterisation which identified parameters did not satisfy linear model. The generalisation involved linearising model neighbourhood current values estimates. It assumed that estimates we...

The Sherwood-Frost constitutive model is widely used to predict the mechanical behavior of polymer materials, and it a very important material model. In this study, stress-strain curve high-density polyethylene (HDPE) with strain rate ranging from 935 5450 s−1 was obtained through split Hopkinson bar test device. Based on HDPE dynamic performance test, method for determining strain-rate paramet...