Change search
ReferencesLink to record
Permanent link

Direct link
Mätningar av statiska och dynamiska egenskaper för bakaxel.
2014 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

To design new and high tech products the engineers rely more and more on computer based simulations to investigate the properties and behavior for a component or system.To verify these computer based simulations the dynamic properties for the components of the drivetrain needs to be verified. Therefore measurements of the stiffness and vibrations for the rear axle has been performed. This report show how the measurements has been implemented and evaluated, along with some interesting results for the rear axles properties.The static stiffness for the drive shaft along with the axle-gear has been determined. It is found that the stiffness for the whole rear axle is near the stiffness for the drive shaft, which means that the drive shaft becomes the dominant component of the system and affects the rear axle stiffness the most. The measured stiffness of the driveshaft is close to its theoretical stiffness.The stiffness for solely the hypoid-gear have been calculated using the stiffness for the rear axle and driveshaft, and thus has a range for the stiffness of the hypoid gear been determined.The backlash for the whole rear axle and for some individual components has been determined, where the backlash between pinion and crown-wheel has negligible impact on the total backlash.Measurements of the crown-wheel and pinion movements have been conducted, where the direction of movement is consistent with the theoretical direction of the forces.The vibration measurements show that the vibrations are more severe at certain rotational speeds. These vibrations can be due to the resonant frequency of the rear axle.An attempt to measure the gear rattle for the current rear axle has been conducted and the results for the measurements show a hint that gear rattle has occurred at certain speeds.The FFT-analysis shows that a large part of the vibrations is caused by the mesh-frequency and its orders.

Place, publisher, year, edition, pages
2014. , 112 p.
Keyword [en]
Keyword [sv]
Teknik, Vibrationsmätning, vibrationer, styvhetsmätning, styvhet, bakaxel
URN: urn:nbn:se:ltu:diva-45014Local ID: 2c188c0b-d5cb-490b-8769-7e5fd4228f8cOAI: diva2:1018293
External cooperation
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Validerat; 20140610 (global_studentproject_submitter)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

Open Access in DiVA

fulltext(11001 kB)1 downloads
File information
File name FULLTEXT02.pdfFile size 11001 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Nilsson, Jens

Search outside of DiVA

GoogleGoogle Scholar
Total: 1 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

Total: 1 hits
ReferencesLink to record
Permanent link

Direct link