3 results about "Linear separation" patented technology

The application discloses a high angle of attack nonlinear separated flow aerodynamic force correction method, which comprises the following steps: obtaining aircraft surface pressure distribution data at zero reduced frequency by using a DES method; dividing surface elements on the surface area of the aircraft, and generating an AIC matrix AIC by using a dipole grid method based on the geometric information of each surface element; obtaining the aerodynamic force and moment of each surface element according to the AIC, and generating an aerodynamic force matrix A DLM,k＝0 of all surface elements at zero reduced frequency by using the aerodynamic force and moment of each surface element; interpolating the aircraft surface pressure distribution data obtained by using the DES method to each surface element to obtain the aerodynamic force matrix A DES of all surface elements; obtaining a force correction matrix W according to A DLM,k＝0 and A DES ; correcting the AIC matrix AIC by using the force correction matrix W to obtain a corrected aerodynamic force influence coefficient matrix AIC * ; and performing aerodynamic force correction and aeroelastic calculation by using the corrected aerodynamic force influence coefficient matrix AIC * , so as to complete the high angle of attack nonlinear separated flow aerodynamic force correction. The application can have both the calculation precision of CFD and the calculation efficiency of an engineering method.

The invention discloses a variable coefficient NLSE multi-soliton transmission control system and a variable coefficient NLSE multi-soliton transmission control method based on a guaranteed structure micro-propagator. The system comprises a link parameter sensing unit, a variable coefficient NLSE digital twinning unit, an analysis multi-soliton seed generation unit, a neural operator precondition unit, a conservation quantity projection and device constraint unit, a transmitting end waveform synthesis and loading unit, a receiving end and a relay feedback unit, the variable coefficient NLSE digital twinning unit is used for constructing a variable coefficient NLSE propagation model, and the other units are used for generating and loading a transmitted waveform under device constraint and conservation constraint, and updating a control strategy according to receiving end / relay feedback. According to the method, a structure-preserving micro-propagator and a conservation quantity projection operator are introduced, inverse problem solving is accelerated by analyzing multi-soliton seed and neural operator Jacobian preconditions, and rapid self-adaptive generation and stable transmission of multi-soliton waveforms are achieved under engineering constraints.

A large-diameter tension-compression decoupling fusion type linear separation device is composed of a separation ring, an inner support protective cover, a detonator seat, an energy-gathering cutting cable assembly, a connecting fastener and a detonator, the protective cover is internally provided with the energy-gathering cutting cable, after the detonation energy is transmitted to the main charge of the cutting cable through the transmission assembly of the detonator, the shaped charge is driven by the detonation wave to form a metal jet to cut and separate the separation ring, the high-level load transmitted by the projectile body is tension-compression decoupled through the tolerance control of the separation ring and the inner support protective cover, and a large-diameter tension-compression decoupling fusion type linear separation device is given, which has the advantages of simple structure, reliable separation performance, high bearing capacity, large connection stiffness, light weight, convenient installation and the like.