Essays about: "FEM Friktion"

Showing result 1 - 5 of 9 essays containing the words FEM Friktion.

  1. 1. New design and construction of hightemperature tribology testingequipment : in the context of hard coatings

    University essay from Karlstads universitet/Avdelningen för maskin- och materialteknik

    Author : Atle Andersson Nykvist; [2023]
    Keywords : Tribology; friction; wear; hot wear; hot wear tester; design; construction; tribometer; tribo tester; tribo-tester; Tribologi; friktion; nötning; varmnötning; varmnötare; design; konstruktion; tribometer; tribotest;

    Abstract : There are two main goals of this thesis. Firstly, to improve and develop an existing hot weartester at Karlstad University so that it may test more samples of different sizes. Secondly, totest previously impossible samples and investigate their tribological properties and measurethe coefficient of friction with high reproducibility. READ MORE

  3. 2. How Does Skid Design Affect Transportability and Handling of Heavy Machinery?

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Eric Eldensjö; Isidor Söderman-Lundqvist; [2022]
    Keywords : skid mounted machinery; transportability; FEA; lashing and securing; load carrier.; rammonterad maskin; transporterbarhet; FEM-analys; surrning och säkring; lastbärare;

    Abstract : At request of the company Climeon, this study was made regarding transportability of skid mounted heavy machinery. The study aimed to investigate what constraining dimensions there might be when transporting by road and sea as well as necessary features that would accommo date lifting, handling, lashing and securing. READ MORE

  4. 3. Simulation of ultrasonic time of flight in bolted joints

    University essay from KTH/Hållfasthetslära

    Author : David Chlebek; [2021]
    Keywords : Acoustoelastic effect; User material subroutine; Murnaghan hyperelastic material model; Explicit FEM; Ultrasonic preload; Fortran; Akustoelastiska effekten; Användar material; Murnaghan hyperelastisk materialmodell; Explicit FEM; Ultraljudsmätning av klämkraft; Fortran;

    Abstract : Ultrasonic measurements of the preload in bolted joints is a very accurate method since it does not depend on the friction and other factors which cause difficulties for common methods. The ultrasonic method works by emitting an ultrasonic pulse into the bolt which is reflected at the end and returned to the transducer, the change in the time of flight (TOF) can be related to the elongation of the bolt and therefore the preload. READ MORE

  5. 4. Development of a method for estimation of contact fatigue life in hypoid gears

    University essay from KTH/Maskinkonstruktion (Inst.)

    Author : Srigiripura Sahana Vittal; [2020]
    Keywords : Hypoid Gear; Rolling Contact fatigue; Fatigue life; FEM; Gear Contact life; Spalling; physical testing; fatigue analysis; Hypoidväxel; rullande kontaktutmattning; utmattningslivslängd; FEM; växelkontaktlivslängd; spalling; fysisk testning; utmattningsanalys;

    Abstract : Hypoid gears have been used extensively in automobiles, aerospace, marine and other applications for decades. The special advantages of hypoid gears come with inherent contact complexities of varying curvature and sliding in both profile and lengthwise direction. READ MORE

  6. 5. Design of a Test Equipment : Quality Control on Hydraulic Quick Couplings Used in the Excavation Industry

    University essay from Luleå tekniska universitet/Institutionen för ekonomi, teknik och samhälle

    Author : Daniel Andersson; Robin Florbrant; [2020]
    Keywords : Industrial design engineering; mechanical engineering; product design; ergonomics; anthropometrics; machine safety; repetitive work; test equipment; hydraulic quick coupling and excavator.; Teknisk design; maskiningenjör; produktdesign; ergonomi; antropometri; maskinsäkerhet; repetativt arbete; testutrustning; hydraulisk snabbkoppling och grävmaskin.;

    Abstract : Construction machines use quick couplers to rapidly change the attached tool. The gear lets the machine operator control the hooking and unhooking of the tool from inside of the cabin. This saves time and makes construction work much easier for the workers. READ MORE