| Spin tube gun is the complex multibody system that is composed of several rigid bodies and beams (flexible bodies) and looks like a "cage", and the speed of its tubes rotation is very high. So resolving Spin tube gun's vibration characteristic in the condition of highly rotating is one of the difficulties of the multibody system dynamic in the world and has important meaning of theoretic or actual. Using the transfer matrix method, calculation problem of the spin tube gun's vibration characteristic is resolved in this thesis. Following is the author's main workings: building the launching dynamics model of the spin tube gun, obtaining the transfer matrix of the whole system and equation of the characteristic, giving the method of solving vibration characteristic, compiling the Fortran program, computing the natural frequency and vibration model. According to the result, the pictures of vibration model are drawn and some necessary analysis and conclusions are given. |
