Search for dissertations about: "whole body vibrations"

Showing result 1 - 5 of 8 swedish dissertations containing the words whole body vibrations.

2. 1. Prediction of discomfort due to transient whole body vibrations

   Author : Peter Jönsson; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

   Abstract : This Licentiate is about Whole Body Vibrations and focuses on transient vibrations with human's discomfort and motion assessment. Whole Body Vibrations occurs when a body is in contact with a vibrating surface. Whole Body Vibrations is a major problem in terrain vehicle, which affects both the physiological and psychological health and discomfort. READ MORE

4. 2. Procedure for the reduction of the effect of transient whole body vibrations

   Author : Peter Jönsson; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

   Abstract : There is a growing interest in the topic areas of increased vibration comfort and reduced vibration levels in work vehicles. Legislation, health costs and demands for increased competitiveness are all important motivating factors in this growing interest. READ MORE

5. 3. Suspension design for off-road construction machines

   Author : Adam Rehnberg; Lars Drugge; Annika Stensson Trigell; David Crolla; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; construction machine; engineering vehicle; earth mover; wheel loader; vehicle dynamics; vehicle engineering; whole body vibrations; off-road vehicle; anläggningsmaskin; entreprenadmaskin; hjullastare; fordonsdynamik; fordonsteknik; helkroppsvibrationer; terrängfordon; Vehicle engineering; Farkostteknik;

   Abstract : Construction machines, also referred to as engineering vehicles or earth movers, are used in a variety of tasks related to infrastructure development and material handling. While modern construction machines represent a high level of sophistication in several areas, their suspension systems are generally rudimentary or even nonexistent. READ MORE

6. 4. Vibration discomfort due to multi-axis excitation

   Author : Andi Rahadiyan Wijaya; Luleå tekniska universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk akustik; Engineering Acoustics;

   Abstract : This licentiate thesis focuses on vibration discomfort due to multi-axis excitation. It is based on three studies; the first two studies were conducted in a laboratory environment using motion platform and utilizing sinusoidal signals, and the last study was a field study that utilized a fork lift truck on an artificial test track with built in obstacles that allowed controlled transient vibration excitation. READ MORE

7. 5. Vehicle dynamic analysis of wheel loaders with suspended axles

   Author : Adam Rehnberg; Annika Stensson Trigell; Lars Drugge; Peter Eriksson; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hjullastare; arbetsmaskin; fordonsdynamik; fordonsteknik; Vehicle engineering; Farkostteknik;

   Abstract : The wheel loader is a type of engineering vehicle used primarily to move crude material over shorter distances. As the vehicle is designed without wheel suspension, wheel loader drivers are exposed to high levels of whole body vibration which influences ride comfort negatively. READ MORE