ACTA AERONAUTICAET ASTRONAUTICA SINICA >
Modelling method and application of solid beam element based on absolute nodal coordinate formulation
Received date: 2014-09-28
Revised date: 2015-07-16
Online published: 2015-07-21
Supported by
National Basic Research Program of China (2013CB733004); National Key Discipline Laboratory Open Fundation (HIT.KLOF.MST.201508); Natural Scientific Research Innovation Foundation in Harbin Institute of Technology (HIF.NSRIF.201515)
In the multibody system dynamics formulations, the modeling of classical non-isoparametric beam element is mainly based on the Euler-Bernoulli and Timoshenko beam theories, which cannot accurately describe the deformation of the beam cross section. Although the absolute node coordinate formulation beam element is able to achieve section description, it is necessary to introduce additional description frames and deal with series locking problems. Different from the elements mentioned above, the absolute nodal coordinate formulation solid element directly describes the section deformation through the node coordinates without the locking problems. Based on the solid element, the absolute nodal coordinate solid beam element considering the continuity condition and internal viscoelastic damping, has been provided and achieved for the first time. With the solid beam element, the modelling of a multibody system is realized. According to numerical simulations, it is able to obtain some nonlinearity results with solid beam element and the precision is much higher than traditional finite element and absolute nodal coordinate formulation element.
MA Chao , WEI Cheng , ZHAO Yang , WANG Ran . Modelling method and application of solid beam element based on absolute nodal coordinate formulation[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015 , 36(10) : 3316 -3326 . DOI: 10.7527/S1000-6893.2015.0201
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