Some Features of Vibrational Perturbations onboard the MirOrbital Station

A number of scientific and technical experiments were carried out and are still being carried out onboard the Mirorbital station in various fields: physics of fluids, space materials study, astrophysics, biotechnology, and so on. The quality and reliability of space experiments are essentially dependent on a knowledge of real microgravitational situation onboard a satellite, which essentially depends on vibrational perturbations. A lot of vibration processes studies have been done up to now on the Mirstation in the following lines of research: control of dynamic and exploitation regimes when carrying out biotechnological and technological experiments; determination of the contribution of different onboard systems and mechanisms to the total vibration perturbations power; and investigation of distributions of microacceleration levels and dynamics of vibration processes in different modules and segments of the orbital station. This paper presents the results of the analysis of vibration perturbations produced by some standard onboard Mirstation systems in a configuration when the KVANT-2 and KRISTALL modules were arranged along the yaw axis of the mainframe. It is shown that due to strong requirements for tolerable levels of the microaccelerations onboard the International Space Station (ISS), the investigations of microgravitational situation, as an integral part of the technological environment, now have a high priority.