Logarithmic method for continuous relaxation spectrum and comparison with previous methods

摘要: Various algorithms for determining relaxation time spectrum have been to the fore, because plays an important role in interconversion between various viscoelastic functions. In this study, a new algorithm is developed by means of double-logarithmic power series approximation and Levenberg–Marquardt method. Compared with most previous algorithms, applicable not only dynamic data but also Laplace transform modulus, which available optical from generalized Stokes–Einstein equation or creep ringing. It worth noticing that determines continuous without any additional parameters precedent procedures. This paper suggests such framework newly its applications kinds data.