Computer simulation of radiation effects on high-speed non-volatile memory

Chubunov, Pavel A.; Lapshin, Artem; Solodilov, Maksim; Ryazancev, Roman; Gamzatov, N.; Евдокимова, Светлана

doi:10.12737/2219-0767-2022-15-3-93-102

Cited by 3 publications

(4 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the functional subsystem of braking, the displacement of the output link (plungers of the brake cylinders) is considered an internal parameter of the hydraulic system, while it is convenient to consider the output values as the pressure in the brake cylinder, which determines the braking torque along with the condition and quality of the runway. The second output parameter determines the flow rate of the working fluid, which affects the total flow rate in the system and, accordingly, the value of the discharge pressure [12].…”

Section: Research and Resultsmentioning

confidence: 99%

Development of simulation models of the hydraulic system of passenger and transport aircraft in normal and failure situations

et al. 2023

View full text Add to dashboard Cite

The paper presents a simulation model of the hydraulic system of an aircraft containing a block supply with a variable flow pump, the discharge line of which is presented in the form of a certain container with liquid, the modulus of elasticity of which is constant, and a hydraulic accumulator is installed in the discharge line a certain capacity and pre-charge pressure, resistance of the discharge and drain lines. The developed simulation model allows failure situations, such as: violation of the internal and external tightness, changing the parameters of the accumulator, reducing the pressure of zero flow due to a change in the stiffness of the springs of the control spool and the servo piston of the regulator, jamming regulator in an intermediate position, etc. In addition, the model allows you to calculate the heat losses associated both with the aircraft flight mode and with changes in the hydrodynamic parameters of the system in regular and failure modes.

show abstract

Section: Research and Resultsmentioning

confidence: 99%

Development of simulation models of the hydraulic system of passenger and transport aircraft in normal and failure situations

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The plot of the relative normal compressive stresses with a change in the defect diameter (Fig. 6) deserves special attention, which shows that a large hole does not correspond to large critical stresses [20]. This means that when developing test programs for thin composite panels, it is necessary to carry out parametric studies to select potentially critical impact points and it is possible to indicate the impact energy limit to obtain damage of a critical size in terms of stability.…”

Section: Discussionmentioning

confidence: 99%

Design of z-shaped reinforced panels of composite materials under compression and shear

et al. 2023

View full text Add to dashboard Cite

When designing thin-walled aircraft structures, as a rule, the main limitations are associated with ensuring stability. The objects of research in this work are composite z-shaped reinforced panels of the wing box of an aircraft. For the early stages of the design of load-bearing panels, it is necessary to evaluate the weight of the design decisions made, taking into account possible defects. The paper proposes an analytical technique for designing reinforced panels, taking into account the use of the condition of uniform stability and the presence of possible regulated defects in the skin that may occur in further operation. The task of determining the parameters of panels of minimum weight is reduced to minimizing the function of one variable, which is the ratio of the height to the reinforcement step. To take into account the indicated regulated defects, parametric studies were carried out using the finite element method, on the basis of which refinement coefficients were added to the analytical ratios of the stiffness parameters of the reinforced panels. The paper presents the results of studies of orthotropic panels with defects in the form of through holes under loading with compressive and tangential forces. The results are presented in the form of graphs that show possible changes in the critical stresses of thin skins with defects.

show abstract

“…After substituting the deflection (12) into the strain compatibility equation (1), we can obtain an equality whose solution is the stress function с с (13) When considering particular solutions of the homogeneous equation, one can obtain coefficients that take into account the orthotropy of the structure…”

Section: Panels When Shearedmentioning

confidence: 99%

“…Taking into account the technical formulation of the problems considered below (Fig. 1), in this case, it will be necessary to consider the panels with rigid support along the long sides and hinged support along the short ones, which somewhat complicates obtaining analytical solutions to geometrically nonlinear problems [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Peculiarities of calculation and design of smooth orthotropic panels with considering geometric nonlinear behavior

et al. 2023

View full text Add to dashboard Cite

When calculating the stability and bearing capacity of the panels of the caisson of the wing of an aerospace aircraft, it is necessary to take into account the presence of a heat-shielding coating, which also acts as an elastic base (EB) for the skin. The subject of this work is thin smooth orthotropic rectangular panels with an elastic base that does not perceive compressive and shear flows acting on the panel. The aim of the work is to develop methods for evaluating and designing composite panels associated with an elastic foundation, taking into account the possible geometrically nonlinear behavior under loads close to the design level. Note that the indicated level of loading can be realized only in full-scale static tests in the experimental justification of the strength of the wing structure. The paper presents analytical solutions of a geometrically nonlinear problem by the Bubnov-Galerkin method for rectangular orthotropic panels, taking into account the ER under the action of compressive and tangential forces. Based on the solutions obtained, methods for determining the thicknesses of orthotropic panels are proposed, taking into account two possible criteria: either reaching the ultimate strength stresses in a possible supercritical state, or reaching the limiting values of the deflection amplitude with geometrically nonlinear behavior. The last specified condition is a consequence of the requirements for the strength of the adhesive bond between the orthotropic skin and the heat-shielding layer. The paper considers smooth rectangular orthotropic panels with rigid support along the long sides and hinged support along the short sides.

show abstract

Computer simulation of radiation effects on high-speed non-volatile memory

Cited by 3 publications

References 15 publications

Development of simulation models of the hydraulic system of passenger and transport aircraft in normal and failure situations

Development of simulation models of the hydraulic system of passenger and transport aircraft in normal and failure situations

Design of z-shaped reinforced panels of composite materials under compression and shear

Peculiarities of calculation and design of smooth orthotropic panels with considering geometric nonlinear behavior

Contact Info

Product

Resources

About