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Simonov A.V.,Lavochkin Science and Production Association
Solar System Research | Year: 2011

The paper examines a scheme of flying to the main asteroid belt using the orbit of an artificial Mars satellite as a parking orbit is examined. Advantages and disadvantages of this variant in comparison with a direct flight scheme are discussed. © 2011 Pleiades Publishing, Ltd. Source


Volkov Aleksandr E.,Saint Petersburg State University | Evard Margarita E.,Saint Petersburg State University | Vikulenkov Andrey V.,Lavochkin Science and Production Association | Uspenskiy Evgeniy S.,Lavochkin Science and Production Association
Materials Science Forum | Year: 2013

A vibroisolation of a payload connected to a vibrating housing by two helical shape memory alloy (SMA) elements is considered. A microstructural theory is used for the simulation of the mechanical behavior of the SMA. The simulations have shown that the resonant frequency and the mitigation of the external vibrations depend on the shape memory alloy state. The maximum reduction of the acceleration amplitude for harmonic excitation is reached when the SMA is in the martensitic pseudoplastic state or in the two-phase state. Variation of temperature allows changing the resonance frequency and thus escaping from resonance. The acceleration of the payload at impact is the smallest when the SMA elements are in the pseudoelastic state. © (2013) Trans Tech Publications, Switzerland. Source


Bagrov A.V.,Russian Academy of Sciences | Barabanov A.A.,Lavochkin Science and Production Association | Vernigora L.V.,Lavochkin Science and Production Association | Vyatlev P.A.,Lavochkin Science and Production Association | And 3 more authors.
Cosmic Research | Year: 2013

We consider the principles of constructing measurement schemes with optical autonomous laser diode beacons for space and ground objects. The structure, functional scheme, and cyclogram of operation of such beacons are described. Possible scenarios of application of the beacons for providing high-precision localization of space and ground devices are analyzed. © 2013 Pleiades Publishing, Ltd. Source


Novalov A.A.,Lavochkin Science and Production Association | Nikitushkin R.A.,Lavochkin Science and Production Association | Boldacheva L.A.,Lavochkin Science and Production Association
Solar System Research | Year: 2011

This paper presents a description of the mathematical model of a video frame processing method. The basis of the model is a coordinate system rotation matrix that uses the direction cosines of one coordinate system relative to another. A description of the estimation of direction cosines via the Monte Carlo method is given. An experimental method for the rotation matrix parameter definition and definition errors is described. © 2011 Pleiades Publishing, Ltd. Source


Volkov A.E.,Saint Petersburg State University | Evard M.E.,Saint Petersburg State University | Red'Kina K.V.,Saint Petersburg State University | Vikulenkov A.V.,Lavochkin Science and Production Association | And 4 more authors.
Journal of Materials Engineering and Performance | Year: 2014

A system of vibroisolation under consideration consists of a payload connected to a vibrating housing by plane shape memory alloy (SMA) slotted elements. The calculation of the mechanical behavior of the SMA is based on a microstructural theory. Simulations of harmonic and of impact excitations are carried out. The results have shown that protective properties of this system depend on the SMA state. The maximum reduction of the acceleration amplitude for harmonic excitation is reached when the SMA is in the martensitic (pseudo-plastic) state or in the two-phase state. A variation of temperature allows changing the resonance frequency and thus escaping from the resonance and controlling a mode of vibration. © 2014 ASM International. Source

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