Research on the Load And the Stability of the Parallel Rocket’s Binding Device

For the parallel rocket, the design and optimization of the binding device is a key technology, which directly determines the configuration design of the launch vehicle. The accurate prediction of the load of the binding device is the basis of its selection, structural design and strength check, as well as the basis of its structure’s precise design and optimization. In view of the low computational efficiency and the low versatility of traditional methods, this paper proposes a fast and accurate method of predicting the load of the binding device based on the transfer matrix, which discretizes the complex mechanical model and transforms the analysis of the whole model into the analysis of the discrete elements. This paper uses a stability analyzing method based on linear Euler theory to solve the problem that the statically indeterminate system stability is prone to misjudging and provide the theoretical support for the development of the parallel rocket.