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Publikācija: Ship Many-Stage Propeller Shaft Power Measuring

Publication Type Publications in RTU scientific journal
Funding for basic activity Unknown
Defending: ,
Publication language Latvian (lv)
Title in original language Kuģa daudzpakāpju dzenvārpstas pārnestās jaudas mērīšana
Title in English Ship Many-Stage Propeller Shaft Power Measuring
Field of research 2. Engineering and technology
Sub-field of research 2.3 Mechanical engineering
Authors Jūris Cimanskis
Janis Kokars
Keywords ship, energy device, propeller, shaft power, power measuring device
Abstract Darbā tiek izpētīta kuģa dzenvārpstas pārnestās jaudas mērīšanas ierīce. Šī ierīce dod iespēju paaugstināt mērījumu kvalitāti un precizitāti. Tas tiek sasniegts tādējādi, ka informācija par vārpstas deformāciju tiek iegūta nerotējošos, korpusā iemontētos adapteros. Vismaz divi korpusā iemontētie adapteri kontaktē ar uz vārpstas virsmas garenass virzienā pret minētiem adapteriem nostiprinātām zīmēm nemehāniski, piemēram, elektroniski vai optiski, un ģenerē impulsa signālu. Impulsa signāli no adapteriem tiek sūtīti uz reģistrācijas ierīci. Reģistrācijas ierīce nosaka laiku starp jebkura impulsa signāla priekšējo vai aizmugurējo fronti, impulsa signālu priekšējās vai aizmugurējās frontes savstarpējo laika novirzi, vārpstas rotācijas ātrumu, tangenciālos spriegumus vārpstā un vārpstas pārnesto jaudu.
Abstract in English The works offers the method of measuring technique, specifically, for measuring shaft transferred power by means of multiplication of shaft torsion moment and rotational speed both gauged during operation. In this topic is developed device which can measure power on the shaft of the engine. The ship propeller shaft line consists from different parts which are joined by the connecting clutch. The shaft parts are different section. The connection of shaft are done by different joints. In this topic the research cover the joints with strong gear connection and flexible connection. In the ship power plant under research the main engine is connected with propeller shaft directly without gear. In such a case the rotation speed of engine is equal to rotation of the ship propeller. During the engine running it is necessary to control the power of engine on regular basis. One of the methods of controlling main engine power is method of measuring propeller shaft turning deviation. The purpose is to increase measurement accuracy. Shaft deformation data is provided by immovable adapters and installed in non-rotary housing . At least two adapters and, being installed in housing 1, are in non-mechanical union, e.g. either electronically or optical, with relevantly to them aligned and fixed marks on top of a shaft in way of longitudinal axis. Generated impulse signal and is transmitted to recording device by adapters and . The recording device determines both time and its deviation between whatever impulses and of either forward or back front, shaft rotation speed , tangential stresses in the shaft and shaft transferred power .
Reference Cimanskis, J., Kokars, J. Ship Many-Stage Propeller Shaft Power Measuring. Intelligent Transport Systems. Vol.34, 2010, pp.23-28. ISSN 1407-8015.
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