Application of modeling methods of RTV adhesive in reflective mirror structure dynamical analysis[J]. Optics and precision engineering, 2010, 18(1): 118-125.
Application of modeling methods of RTV adhesive in reflective mirror structure dynamical analysis[J]. Optics and precision engineering, 2010, 18(1): 118-125.DOI:
Making research on modeling methods for RTV adhesive in reflective mirror structure. The methods of node-connection(ignoring RTV adhesive))
isotropy(three elements and one element) and anisotropy materials are detailed introduced respectively. The FEA model of lens sets was created and the mode analysis was made. At same time
the mode test equipment was setup and the mode parameters were tested for lens sets. The results show that error between the first free mode frequency got from the modeling method of anisotropy and the first free mode frequency got from test was only 0.3%
and the errors of the method of isotropy three elements and one element and node connecting are 1.8%
1.2% and 13.9%. From analysis and test
we can conclude that the RTV adhesive can not be ignored in FEA
The method of isotropy for one element can not only reduce the quantity of model number