A compressible air permeability model is developed to simulate the aerodynamic performance of the Table Bases supersonic porous canopy.And a single-degree-of-freedom model is applied to analyse the static stability of the parachute.By using this method, the flow structure of the parachute system with big attack angle is obtained.The aerodynamic mom
Many cognominal parts exist in JT models exported by FORAN V70 R2.0 software, and this leads to an increase in time consumption and the space analysis results becoming hard to process when using clearance analysis software to perform distance computing for such JT models.Aiming at this problem, an algorithm for merging component nodes is put forwar
This paper is devoted to a stochastic retarded reaction-diffusion equation on all d-dimensional space with additive white noise.We first show that the stochastic retarded reaction-diffusion equation generates a random dynamical system by transforming this stochastic equation into a random one through a tempered stationary random homeomorphism.Then,
Herringbone grooved aerodynamic journal bearings have better stability characteristics than plane aerodynamic journal bearings.In addition, the use of flexibly supported bearings is one of the Medical and Ambulatory supplies / Respiratory efficient way to improve the bearing stability.Therefore, the combination bearing systems have prospects of rea