TY - GEN
T1 - POD based computation of joint interface modes
AU - Witteveen, Wolfgang
AU - Sherif, Karim
N1 - Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2011
Y1 - 2011
N2 - Recently proposed joint interface modes (JIM), which have been presented at the IMAC 25th, do consider Newton's 3rd law across a joint already at the stage of mode generation which leads to significant improvements in the subsequent mode based computation where nonlinear contact forces are applied. In the latter publication the computation of the JIM is based on a general eigenvalue problem of a statically reduced mass and stiffness matrix. This approach has certain drawbacks in terms of interpretability and in terms of an 'a priory' - estimation of the required number of JIM. In this contribution a prober orthogonal decomposition (POD) based method for the computation of the JIM is introduced. In this context the JIM can be interpreted as kind of 'energy modes' so that this procedure holds a meaningful physical interpretation as well as an 'a priory' - estimation of the required number of JIM.
AB - Recently proposed joint interface modes (JIM), which have been presented at the IMAC 25th, do consider Newton's 3rd law across a joint already at the stage of mode generation which leads to significant improvements in the subsequent mode based computation where nonlinear contact forces are applied. In the latter publication the computation of the JIM is based on a general eigenvalue problem of a statically reduced mass and stiffness matrix. This approach has certain drawbacks in terms of interpretability and in terms of an 'a priory' - estimation of the required number of JIM. In this contribution a prober orthogonal decomposition (POD) based method for the computation of the JIM is introduced. In this context the JIM can be interpreted as kind of 'energy modes' so that this procedure holds a meaningful physical interpretation as well as an 'a priory' - estimation of the required number of JIM.
UR - http://www.scopus.com/inward/record.url?scp=79958148987&partnerID=8YFLogxK
U2 - 10.1007/978-1-4419-9305-2_2
DO - 10.1007/978-1-4419-9305-2_2
M3 - Conference contribution
SN - 9781441993045
T3 - Conference Proceedings of the Society for Experimental Mechanics Series
SP - 19
EP - 28
BT - Linking Models and Experiments - Proceedings of the 29th IMAC, a Conference on Structural Dynamics, 2011
PB - Springer
T2 - IMAX XXIX
Y2 - 31 January 2011 through 3 February 2011
ER -