S. Hernández, E. Menga, C. López, A. Baldomir, M. Cid Montoya, D. Freire, S. Moledo, P. Naveira

DOI Number: N/A

Conference number: IFASD-2017-093

This paper presents a MATLAB managed software that is able to obtain the frequency domain response of assembled structures with local nonlinearities, which are usually concentrated in the connections between two components or among systems and the structure. First, a decoupled formulation in the frequency domain that splits the stiffness of the structure in two parts (contribution of the joints and contribution of the remaining components) and that deals with local nonlinearities is presented. A direct time integration of the State-Space equations is as well formulated in order to validate the results of the decoupled approach. Afterwards the MATLAB platform is briefly described, including the graphical interface that helps the user to define the dynamic problem. To end, three application examples are presented, including a simplification of two fuselage segments and two real connections among aircraft systems and the fuselage.

Read the full paper here

In Categories: 1. IFASD 2017, 1.Events, Dynamic loads
Email
Print
LinkedIn
The paper above was part of  proceedings of a CEAS event and as such the author has signed a publication agreement to have their paper published in the repository. In the case this paper is found somewhere else CEAS always links to the other source.  CEAS takes great care in making the correct content available to the reader. If any mistakes are found  in the listings please contact us directly at papers@aerospacerepository.org and we will correct the listing promptly.  CEAS cannot be held liable either for mistakes in editorial or technical aspects, nor for omissions, nor for the correctness of the content. In particular, CEAS does not guarantee completeness or correctness of information contained in external websites which can be accessed via links from CEAS’s websites. Despite accurate research on the content of such linked external websites, CEAS cannot be held liable for their content. Only the content providers of such external sites are liable for their content. Should you notice any mistake in technical or editorial aspects of the CEAS site, please do not hesitate to inform us.