Uncertainty propagation for nonlinear vibrations: A non-intrusive approach
نویسندگان
چکیده
منابع مشابه
Nonlinear Propagation of Orbit Uncertainty Using Non-Intrusive Polynomial Chaos
This paper demonstrates the use of polynomial chaos expansions (PCEs) for the nonlinear, non-Gaussian propagation of orbit state uncertainty. Using linear expansions in tensor-products of univariate orthogonal polynomial bases, PCEs approximate the stochastic solution of the ordinary differential equation describing the propagated orbit, and include information on covariance, higher moments, an...
متن کاملImproved Non-Intrusive Uncertainty Propagation in Complex Fluid Flow Problems
The problem of non-intrusive uncertainty quantification is studied, with a focus on two computational fluid dynamics cases. A collocation method using quadrature or cubature rules is applied, where the simulations are selected deterministically. A one-dimensional quadrature rule is proposed which is nested, symmetric, and has positive weights. The rule is based on the removal of nodes from an e...
متن کاملUncertainty Analysis for Parametric Roll Using Non-intrusive Polynomial Chaos
In this paper, uncertainty analysis is carried out on both a simple parametric roll model which can be modeled as a Mathieu equation and a 1.5 degree-of-freedom parametric roll model in regular seas. For both cases, the uncertainty is brought into the system due to the error in predicting the damping coefficients. The non-intrusive polynomial chaos method has been used to assess how the paramet...
متن کاملA Non-Intrusive Approach to Gaze Estimation
Human eye tracking and gaze estimation is a new technology which acts as an interface between the user and the computer. Its main goal is to determine where a user is looking on the computer screen. Numerous methods have been developed to accomplish this task. However, they need expensive and proprietary hardware, or require the user to wear a device on his/her head, or place limitations on the...
متن کاملA semi-intrusive deterministic approach to uncertainty quantification in non-linear fluid flow problems
This paper deals with the formulation of a semi-intrusive (SI) method allowing the computation of statistics of linear and non linear PDEs solutions. This method shows to be very efficient to deal with probability density function of whatsoever form, long-term integration and discontinuities in stochastic space. Given a stochastic PDE where randomness is defined on Ω, starting from (i) a descri...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Sound and Vibration
سال: 2017
ISSN: 0022-460X
DOI: 10.1016/j.jsv.2016.09.020