Essays about: "Rullmotstånd"

Showing result 1 - 5 of 11 essays containing the word Rullmotstånd.

  1. 1. Development and implementation of a tram line performance model

    University essay from KTH/Väg- och spårfordon samt konceptuell fordonsdesign

    Author : Christian Matz; [2022]
    Keywords : tram; Vienna; travel time; tram operation; Spårvägn; Wien; restid; spårvagnstrafik;

    Abstract : Wiener Linien’s tram network is one of the largest and busiest of its kind worldwide. Maintaining and improving the Level of Service (LoS) is one of the major tasks of the operations division. To direct these improvements efficiently to lines and sections of lines in need, tram line performance needs to be assessed. READ MORE

  3. 2. Development of a Downscaled Hovering Device for a Hospital Bed to Reduce Rolling Resistance

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Kristian Namrood; [2021]
    Keywords : Fall-related injuries; shock absorbing floor; rolling resistance; hospital bed; hovering device;

    Abstract : Fall-related injuries are common problems in elderly care in particular. These can cause brain damage and hip fractures, which in many cases can be serious. To reduce or mitigate the damage, various safety measures have been developed. One of them concerns a change in the surroundings, more specifically, the floor. READ MORE

  4. 3. Analysis of the energy consumption of the powertrain and the auxiliary systems for battery-electric trucks

    University essay from KTH/Fordonsdynamik

    Author : Guanqiao Song; [2020]
    Keywords : Battery-electric truck; Energy consumption analysis; Battery loss; PT1 battery model; Power Take Off; Sankey diagram; Direct-Current charging; Batterielektrisk lastbil; Energiförbrukningsanalys; Batteriförlust; PT1 batterimodell; Power Take Off; Sankey diagram; Direct-Current charging;

    Abstract : The electrification of the truck is crucial to meet the strategic vision of the European Union (EU) to contribute to net-zero greenhouse gas emissions for all sectors of the economy and society. The battery-electric truck is very efficient to reduce the emissions and has also a lower Total Cost of Ownership (TCO) compared to diesel trucks. READ MORE

  5. 4. Shock Absorbing Flooring For Elderly Homes : Study of Shock Absorption of Head Impacts and Rolling Resistance

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Brynjar Hilmarsson; [2018]
    Keywords : Shockabsorbing Flooring; Rolling Resistance; Fall Injuries; Head Impact Studies;

    Abstract : In Sweden fall-related injuries among the elderly lead to over a thousand deaths and close to 300.0000 hospital visitations annually. Fall related injuries can in many cases lead to serious head injuries along with other fractures. The elderly are more prone to fall and sustain an injury because of conditions such as osteoporosis and weak muscles. READ MORE

  6. 5. Improving Traction Efficiency in Off-Road Vehicles - A Sliding Mode Approach

    University essay from KTH/Optimeringslära och systemteori

    Author : Payam Maroufi; [2018]
    Keywords : Slip efficiency; sliding mode controller; sliding mode observer; articulated vehicles; wheel loader dynamic.; Slipeffektivitet; sliding mode regulator; sliding mode observerare; ledat fordon; hjullastarens dynamik.;

    Abstract : This report evaluates the option of using an equal slip controller, an effective rolling radius and rolling resistance force observer in a 4WD wheel loader. The vehicle studied is an under development- vehicle designed by Volvo CE. READ MORE