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.

Have you encountered problems when you are unlocking a door? Perhaps you have had your hands full when you needed to unlock the door? Or, you might be suffering from a disease and have difficulties to put force on to small objects. To solve these problems there are different options. The most common alternative is a key button. With the key button, you do not need turn the Pinion to unlock.

This report is the result of a master thesis at the Department of Mechanical Engineering, Division of Industrial and Economical Development, at Linköping University of Technology. The project was carried out on behalf of Fanerami AB, Mjölby and includes 20 weeks of full time schedule work.Cabinets with vertical mounted roller shutters all share the same problem, namely weight balancing. A roller shutter has an equilibrium area where the sum of the different forces acting on the shutter equals zero. As the shutter leaves that area it will pick up speed as it falls towards the bottom. When the shutter hits the bottom of the cabinet there is a potential risk of getting fingers caught and in this project a solution to prevent this from happening was to be presented.In this project, three concepts have been generated with the following different purposes:?In concept 1 the risk of getting any fingers caught when the shutter closes was to be eliminated in an efficient and inexpensive way.?In concept 2 the roller shutter had to be balanced at all time providing the possibility to keep the cabinet open in any position.?The last and most challenging task was to create a remote controlled TV cabinet.

Alimak Hek tillverkar och säljer bl a kuggstångshissar. Kuggstångshissar skiljer sig från konventionella linhissar genom att de inte lyfts av vajrar, utan vandrar längs en kuggstång. Detta innebär att hissarna kan bära drivningen i direkt sammanknytning till hisskorgen, vilket i sin tur medför att de snabbt kan resas och användas även i svåra miljöer. Eftersom de inte behöver lyftas av en vajer är de kapabla att lyfta högt och tungt.Men likt andra typer av hissar är kravet på säkerhet högt, bl a måste hissarna utrustas med en nödbroms, kapabel att bromsa hissen om nöden kräver. Alimak Hek använder idag nödbromsar som bygger på en konstruktion som ursprungligen utvecklades på 70-talet, men genom årens lopp har tillägg gjorts för att klara nya krav.