No abstract

In this paper device for vibroisolation with Neodimium-Iron-Boron (NdFeB) supermagnets is presented. The use of the supermagnets allows developing device for vibroisolation with less size in comparison with present vibroisolators.

In this article the development of the perspective vibration protection device is described. The theory suggests the development of 3D-vibration isolator devices, which have power characteristics with zero stiffness area. A spatial vibroisolator is presented as an elastic element and stiffness compensator in-parallel of this element to obtain this specific area on power characteristic. This methodology allows us to make three-dimensional (3D) vibration isolator with electromagnetic stiffness compensator. This isolator allows to delete the vibration fluctuations in all three axes of space simultaneously. A spatial vibroisolated device consists of an elastic element and parallel 3D-electromagnetic stiffness compensator. An electromagnetic stiffness compensator is a two counter-mounted electromagnetic disks. Each disk is made as six electromagnetic or magnetic disconnected coils, and they are located two by two along three axes of space. The construction of one-dimensional vibration isolator with an electromagnetic stiffness compensator is presented in this article. Three-dimensional vibration isolator can be used in any area of mechanic, engineering, vibration dumping technique, which has a negative effect on human health and devices performance.

No abstract

<p>The sensitivity of the optical clocks to thermal radiation is shown in the research. The paper gives a brief overview of the optical clocks shift resonance reasons. The ways to investigate and decrease the thermal radiation impact on 87Sr optical clocks are found.</p>