ANSYS and ADAMS-based large-scale antenna dynamical modeling method

The invention discloses an ANSYS and ADAMS-based large-scale antenna dynamical modeling method, and mainly solves the problem that the existing modeling method cannot be used for accurately describing rigid motion of an antenna and cannot consider the problem of rigid-elastic coupling in a movement process of the antenna. The modeling method comprises the steps: based on a finite element model of an elastic component of a large reflector antenna, according to a modal analysis result, selecting the modality with the maximal contribution to antenna output, replacing node coordinates with a small quantity of modal coordinates to condense the degree of freedom of elastic deformation, and then exporting a corresponding modal neutral file; by establishing the rigid component of the antenna in ADAMS, combining the modal neutral file describing an elastomer, and performing assembly to obtain the dynamical simulation model describing the integral movement of the antenna. The ANSYS and ADAMS-based large-scale antenna dynamical modeling method overcomes the defects of the traditional modeling method, and a development period can be obviously shortened.