Search for dissertations about: "gear noise"

Showing result 11 - 15 of 20 swedish dissertations containing the words gear noise.

2. 11. Contact mechanics and noise in gears

   Author : Olle Lundvall; Philippe Velex; Linköpings universitet; []
   Keywords : TECHNOLOGY; TEKNIKVETENSKAP;

   Abstract : In this thesis, recent findings in the area of computational contact mechanics are applied to gear technology. The focus of this application is gear noise. One of the main goals is to calculate the so called transmission error, which is a measure that relates structural properties of a gear to gear noise. READ MORE

4. 12. On Noise Generation and Dynamic Transmission Error of Gears

   Author : Mats Henriksson; Leping Feng; Reader Andy Moorhouse; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle engineering; Farkostteknik; Acoustics; Akustik;

   Abstract : Noise from heavy trucks is an important environmental issue. Several sources contribute to the total noise level of a vehicle, such as the engine, gearbox, tires, etc. The tonal noise from the gearbox can be very disturbing for the driver, even if the noise level from the gearbox is lower than the total noise level. READ MORE

5. 13. On Contact Mechanisms and Mechanical Transmission Performance

   Author : Lars Maclennan; Maskinelement; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; vacuum technology; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik; hydraulics; Mechanical engineering; artificial neural network; experimental study; disc brake; dynamic analysis; shaft; Spur gear;

   Abstract : This thesis consists of four papers, which treat the modelling of a spur gear set and a disc brake, and the interaction between the machine elements. Features of the performance are studied in relation to the initial stated assumptions. READ MORE

6. 14. Efficiency and wear properties of spur gears made of powder metallurgy materials

   Author : Li Xinmin; Ulf Olofsson; Giovanni Straffelini; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Powder Metallurgy Gears; Efficiency; Wear; Friction; Porosity Structure; FZG gear test rig; Machine Design; Maskinkonstruktion;

   Abstract : Powder metallurgy (PM) is usually used in manufacturing parts with complex geometries, such as gears and structural parts. The main attractions of PM are the high rate of material utilization, environmental friendliness of production, economic advantages (especially for complex geometries), and possibility of obtaining lighter components. READ MORE

7. 15. Detection of Impact Sources Using an Impulse Response Recognition Technique Applications on Rattle Sources in Gearboxes

   Author : Jens Blomqvist; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Abstract : Noise and vibration properties of products have become important functions in the competition between different manufacturers and are seen today as indicators for the quality of the product. In this work, a new approach is presented for the localisation of impulse sources in complex structures, e.g. engines, driving units or complete vehicles. READ MORE