[en] Splitting methods have been developed in order to decompose the equations of motion of a nonsmooth mechanical system into a smooth subsystem and nonsmooth contributions. Then, a higher-order time-discretization method can be used for the smooth subsystem whereas the nonsmooth terms are solved using a first-order time-discretization. Compared to the Moreau-Jean scheme, this approach improves the quality of the numerical solution especially for the representation of the vibrating response of flexible bodies. Also, all the constraints can be exactly verified both at the velocity and position levels. However, the couplings between the equations of the different subsystems resulting from the splitting may penalize the numerical efficiency of the complete procedure.
This talk discusses a new splitting strategy which intends to minimize the coupling terms between the different subsystems. In this way, the different subsystems can be solved at each time step in a purely sequential manner. This strategy significantly accelerates the convergence of the nonlinear problem to be solved at each time step and it also simplifies the practical implementation in a simulation code. The proposed method is implemented in OOFELIE, a general-purpose finite element package, which allows the analysis of finite element models involving 3D frictional contact conditions.
Disciplines :
Mechanical engineering
Author, co-author :
Bruls, Olivier ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire des Systèmes Multicorps et Mécatroniques
Galvez Buezo, Javier ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Laboratoire des Systèmes Multicorps et Mécatroniques
Cavalieri, Federico J.
Cardona, Alberto
Language :
English
Title :
Improved splitting methods for 3D frictional contact problems
Publication date :
November 2017
Number of pages :
1
Event name :
6th Symposium of the European Network for Nonsmooth Dynamics
This website uses cookies to improve user experience. Read more
Save & Close
Accept all
Decline all
Show detailsHide details
Cookie declaration
About cookies
Strictly necessary
Performance
Strictly necessary cookies allow core website functionality such as user login and account management. The website cannot be used properly without strictly necessary cookies.
This cookie is used by Cookie-Script.com service to remember visitor cookie consent preferences. It is necessary for Cookie-Script.com cookie banner to work properly.
Performance cookies are used to see how visitors use the website, eg. analytics cookies. Those cookies cannot be used to directly identify a certain visitor.
Used to store the attribution information, the referrer initially used to visit the website
Cookies are small text files that are placed on your computer by websites that you visit. Websites use cookies to help users navigate efficiently and perform certain functions. Cookies that are required for the website to operate properly are allowed to be set without your permission. All other cookies need to be approved before they can be set in the browser.
You can change your consent to cookie usage at any time on our Privacy Policy page.