On the construction of discrete approximations to linear differential expressions.
Algorithm for construction of discrete approximations to linear differential expressions in terms of ordinates
APPROXIMATION METHOD↗
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Results for “linear equations”
Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Accurate digital technique simulates flight control system
Fast, accurate technique for simulating the Saturn Flight Control System was devised. The technique is simple to implement and can be readily substituted for slower or less accurate techniques. This technique can be applied to a large class of problems that require a rapid accurate calculation of the response of linear differential equations to a continuous input.
Hays, J. R.↗
Accuracy study of finite difference methods
Perturbation techniques for error analysis of finite difference approximations for linear differential equations
Cyrus, N. J.↗
Attenuation of sound in soft walled circular ducts
Linearized wave equation with associated boundary conditions for predicting sound attenuation in soft walled circular ducts
Rice, E. J.↗
Analysis of propellant slosh dynamics and generation of an equivalent mechanical model for use in preliminary voyager autopilot design studies
Linearized dynamic equations and mechanical model for propellant sloshing in Lunar Excursion Module Descent Propulsion System /LEMDPS/
Lance, T. A.↗
Controlability of higher order linear systems
Theory and equations on complete controllability of higher order linear systems
Fattorini, H. O.↗
On the shell equations in complex form
Formulation of general equations of linear thin shell theory in terms of complex combinations of dependent variables
Sanders, J. L., Jr.↗
Controllability of higher order linear systems.
Dynamical system with time evolution described by second order linear differential equation in complex Banach space, discussing controllability
Fattorini, H. O.↗
A general stability criterion for feedback systems.
Stability criterion for feedback control system described by linear differential equations with constant coefficients
Krall, A. M.↗
Identification of Linear Discrete Time Systems Using the Instrumental Variable Method.
Instrumental variable method to identify dynamic systems described by linear difference equations
Polak, E.↗
Sub-optimal control of non-linear single input systems.
Suboptimal control generation for nonlinear single input systems by linear combination of states and repeated linearization of equations system
Aggarwal, J. K.↗
Kinetic model of Tonks-Dattner resonances in plasma columns.
Tonks-Dattner resonances in plasma column, using linearized Vlasov equation for coupling to plasma waves of time varying electric fields
Baldwin, D. E.↗
Effect of linearization of the three-body problem near L sub 2.
Linearization of equations of motion for three body problem, emphasizing lunar far side libration point as related to possible landing
Domb, U.↗
Theory of galvanomagnetic effects in metals
Solution to linear Boltzmann equation describing galvanomagnetic properties of metals
Fair, G.↗
Theory of radiative transfer in inhomogeneous atmospheres. I
Albedo variations for single scattering in atmosphere of arbitrary optical thickness by linearizing transfer equations with perturbation technique
Abhyankar, K. D.↗
Distribution of zeros of solutions of a fourth
Distribution of zeros of solutions of canonical fourth order linear differential equations
Peterson, A. C.↗
On the stability of nonlinear operator differential equations, and applications
Existence and stability problems of nonlinear operator differential equations containing linear operator with domain and range contained in real Hilbert space
Pao, C. V.↗
Dynamics and stability of elastic Cosserat curves
Nonlinear dynamic theory describing elastic Cosserat curves plane motion, developing linear displacement equations and dynamic stability concept
Desilva, C. N.↗