Razvoj naprave za merjenje hidrostatične sile na zapornico

Cerar, Jan (author), Šajn, Viktor (mentor)

Zaključno delo obravnava merjenje hidrostatične sile in njenega prijemališča na tekočinsko zapornico. Problem predstavlja zagotavljanje sile tesnjenja, ki ne sme ovirati meritev. Odločili smo se za izdelavo akrilne posode s krožno simetrično, "plavajočo" zapornico, na kateri merimo silo v treh točkah, s čimer preprečimo rotacijo v katerikoli smeri in nanjo ne prenašamo sile tesnjenja. Zapornica je na posodo pritrjena s tanko silikonsko membrano, da so izgube zaradi notranjega trenja čim manjše. S preizkusom smo se teoretičnim vrednostim za hidrostatično silo približali na 2,86-6,58%, za eksentričnost prijemališča pa 0,43-8,12%.

• Language: Slovenian
• Keywords: statika uidov hidrostatična sila zapornica merjenje prijemališča sile
• Work type: Bachelor thesis/paper
• Organization: FS - Faculty of Mechanical Engineering
• Year: 2017
• PID: 20.500.12556/RUL-95552
• Publication date in RUL: 20.09.2017

Secondary language

• Language: English
• Title: Development of a Device for Measuring Hydrostatic Forces on Submerged Surfaces

Abstract

Final thesis takes on a problem of measuring hydrostatic forces and the centre of pressure on a submerged at surface. The problem we were facing was to facilitate measurements without the need for providing a sealing force, which would have an impact on results. We have decided to construct and produce an acrylic vessel with a circular "floating2 surface on which the force is measured in three points, by means of which any rotation is prevented and it does not carry any sealing forces. The surface is mounted on the vessel by a thin silicone membrane to reduce any losses due to internal friction. Upon testing the device we have come to a conclusion that the forces deviate from theoretical values for around 2.86-6.58%, and the centre of pressure around 0.43-8.12%.

• Keywords: uid statics testing device hidrostatic force submerged surface measurng the centre of the pressure