Search for dissertations about: "traction"

Showing result 1 - 5 of 171 swedish dissertations containing the word traction.

  2. 1. On Rolling Variators, A study of power transmitting rolling variators when changing speed ratio

    Author : Göran Brännare; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction drives; traction drives; variators; traction; CVT; speed ratio change; rolling traction trnasmissions; continously variable transmissions; rolling contact drives; transmission ratio change;

    Abstract : The introduction of the concept Rolling Variators is proposed for rolling contact continuously variable transmission.A theoretical study of rolling variators when changing the speed ratio during power transmission is presented. READ MORE

  4. 2. Prediction of traction in EHL contacts operating in the linear isothermal region

    Author : Yuko Higashitani; Andreas Almqvist; Marcus Björling; Sanemasa Kawabata; Alessandro Ruggiero; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Elastohydrodynamic lubrication EHL ; Friction; Traction; Modelling; Simulation; FEM; Rolling sliding; Elliptical; Machine Elements; Maskinelement;

    Abstract : The vehicle industry plays an important role in moving people and goods all over the world. Unfortunately, the vehicular transportation has a huge (negative) impact on the climate. Improved fuel-efficient vehicle technologies are therefore required to reduce emissions and address environmental concerns. READ MORE

  5. 3. An Interactive Traction Motors Design and Selection Software

    Author : Hasan El Hinaoui-Hamze; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CAD; Access; Electric Drives; Visual Basic; Internal Combustion Engines ICEs ; · Electric Motors EMs ; SQL; MATLAB; Hybrid Electric Vehicles HEVs ; Traction Motors; MagNet;

    Abstract : Use of electric motors in vehicle traction, in fact, predates the internal combustion engines (ICEs). Electric vehicles powered by dc motors were known as far back as 1890. Compared with vehicles powered by ICEs, the main drawback of the early electric vehicles was, and still is, their limited range and long recharging time. READ MORE

  6. 4. Integrated In-Wheel Motors for Low Power Traction Application

    Author : Prakashraj Kasinathan; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; electric golf cart; integral-slot; force density; flux-linkage; traction motors; forklift trucks; direct-drive; electric wheelchairs power wheelchairs; low speed machines; fractional-slot;

    Abstract : This thesis is primarily concerned with the practical limits, imposed by magnetic saturation and thermal considerations, of the force density in low-speed permanent-magnet electric machines. The practical force density values obtainable in integral- and fractional-slot machines are determined. READ MORE

  7. 5. 3D printing of polymers onto textiles : An innovative approach to develop functional textiles

    Author : Prisca Eutionnat-Diffo; Barbara Simončič; Högskolan i Borås; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; 3D printing; Fused deposition modeling; Adhesion; Textile Functionalization; Statistical Modeling; Non conductive and conductive polymer; Multi-walled carbon nanotube; Carbon Black; Deformation; Tensile; Abrasion; Biphasic polymeric bends; 3D打印，熔融沉积成型，粘附性，纺织品功能性，数据建模，导电与非导电高聚物，多壁碳纳米管，炭黑，变形性能，拉伸性能，摩擦性能，二相高分子共混物; Impression 3D; Modélisation par dépôt de polymère fondu; Adhésion; Fonctionnalisation textile; Modélisation statistique; Polymère non conducteur et conducteur; Nanotube de carbone multi-parois; Noir de carbone; Déformation; Traction; Abrasion; Mélanges de polymères biphasiques; 3D-utskrift; smält deponeringsmodellering; vidhäftning; textilfunktionalisering; statistisk modellering; icke ledande och ledande polymer; flerväggigt kolnanorör; kolsvart; deformation; draghållfasthet; nötning; bifasisk polymerböjning; Textil och mode generell ; Textiles and Fashion General ;

    Abstract : This thesis aims at characterizing tridimensional (3D) printed polymers onto PET textile materials via fused deposition modeling (FDM) that uses both non-conductive and conductive polymers, optimizing their mechanical and electrical properties through statistical modeling and enhancing them with pre and post-treatments and the development of polymer blends. This research work supports the development of technical textiles through 3D printing that may have functionalities. READ MORE