The impact of multi-gap seals on rotor dynamics
Journal Title: Журнал інженерних наук - Year 2017, Vol 4, Issue 1
Abstract
The research relevance of multi-slotted seals is of practical significance for increasing vibration-reliability of centrifugal pumps. This paper presents the model of a single-disk rotor with seals. The forced radial rotor vibrations are determined taking into account the linearized inertial, damping, gyroscopic, positional, and circulating forces operating on the impeller from the liquid flow side in the annular seals. A theoretical analysis was supplemented with a numerical example, the amplitude-frequency and phase characteristic are presented.
Authors and Affiliations
O. Pozovnyi, V. Martsynkovskyy
Keywords
Related Articles
- EP ID EP240083
- DOI -
- Views 80
- Downloads 0
Numerical Investigation of the Concave-Cut Baffles Effect in Shell-and-Tube Heat Exchanger
In this paper, the performance of shell-and-tube heat exchangers with single-segmental baffle and varying configurations of concave-cut baffles (10, 15 and 20 %) was investigated. The study was carried out for a heat exc...
Special aspects of machining of internal threads by measure tool
Based on an analysis of recent studies of various machining methods the disadvantages of existing methods of internal threads machining have been identified. The proposed method of machining round threads by up to measur...
Study of verification and validation of standard welding procedure specifications guidelines for API 5L X-70 grade line pipe welding
Verification and validation of welding procedure specifications for X-70 grade line pipe welding was performed as per clause 8.2, Annexure B and D of API 5L, 45th Edition to check weld integrity in its future application...
Visual object-oriented technology and case-tools of developing the Internet / Intranet-oriented training courses
New information technologies, modern computers, LAN, WAN networks enable us to modernize the whole education system. One of the most perspective ways of the modern educational system’s development is online education. Th...
Research of Mechanical Properties of Thermite Material on the Basis of Steel Dross
Important direction in the development of technologies for the recycling of wastes of industrial productions is inclination on the use energy saving technologies. The article deals with general aspects of methods of util...