He's frequency formulation for nonlinear oscillators using a golden mean location
He's frequency formulation, derived on the basis of an ancient Chinese mathematical method, is an effective method for treating nonlinear oscillators. There are different approaches for choosing location points in the formulation. This paper suggests another location point, an example is given, and the accuracy is improved. (C) 2010 Elsevier Ltd. All rights reserved.
he's frequency formulation nonlinear oscillator ancient chinese mathematical method accuracy phase of residuals