Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Frequency response of hydraulic hoses
KTH, Superseded Departments, Machine Design.
2002 (English)Licentiate thesis, monograph (Other scientific)
Abstract [en]

Hoses can be components of fluid power control systems. To determine the dynamic behaviour of such systems you need to know the dynamic properties of the components included. This investigation aims to develop a method to determine these properties of hoses.

Nitrile-black-carbon is used in hydraulic hoses. A literature study gives that rubber is a very complex material. It is viscoelastic with a lot of non-linearities so it is not self-evident how to model the hose. Four different models are studied. One of them gives an idea of the static relation between the rubber tube and the reinforcing. Two of them take the dynamic properties of rubber into account. The fourth model is a second order black box model.

Laboratory tests have been done. The relationship between pressure changes and volume changes in hydraulic hoses at different frequencies is measured. Two seated valves were used, one for increasing and one for decreasing the pressure in the hose. The volume of oil coming out from the hose was measured with a cylinder.

Three different hoses are tested. The test results agree rather well with one of the dynamic rubber models and with the black box model, useful for control system analysis.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2002. , 88 p.
Series
TRITA-MMK, ISSN 1400-1179 ; 2002:2
National Category
Mechanical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-1411OAI: oai:DiVA.org:kth-1411DiVA: diva2:7275
Note

QC 20150917

Available from: 2002-04-25 Created: 2002-04-25 Last updated: 2015-09-18Bibliographically approved

Open Access in DiVA

Thesis(1388 kB)610 downloads
File information
File name FULLTEXT01.pdfFile size 1388 kBChecksum SHA-512
271b5b7706bc4e61a75fda8b98f7d9e66055cf268792879b0fa4a4704cc33ad8eae6669de66a080ef38836ed613a2fb0b78ec97ac51183a8c034355b7726740b
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Hölcke, Jan
By organisation
Machine Design
Mechanical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 610 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 1161 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf