Sökning: "complex modulus"

Visar resultat 11 - 15 av 31 uppsatser innehållade orden complex modulus.

  1. 11. Development of a Method to Measure Residual Stresses in Cast Components with Complex Geometries

    Master-uppsats, KTH/Materialvetenskap

    Författare :Yang Yang; [2020]
    Nyckelord :Residual Stresses; Cast Iron; Engine Components; XRD; Ultrasonic; Cutting;

    Sammanfattning : Cast iron, taking the advantages of the advanced castability forming components of complex geometries and favorable mechanical properties, is employed in engine components in truck industries. Compacted graphite iron (CGI) integrates both merits of lamellar graphite iron (LGI) and spheroidal graphite iron (SGI) such as good machinability and high thermal conductivity from LGI, high ultimate tensile strength (UTS), good fatigue resistance, high elastic modulus, and high ductility from SGI, thus is now becoming a competitive alternative of traditional LGI in cylinder blocks and heads. LÄS MER

  3. 12. Evaluations of Vibrations in a Wet Clutch

    Uppsats för yrkesexamina på grundnivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :David Sandlund; Oskar Wintercorn; [2019]
    Nyckelord :Haldex; BorgWarner; Friction; Vibrations; Wet Clutch; Tribology; 4wd; four wheel drive; all wheel drive; awd;

    Sammanfattning : BorgWarner Powerdrive Systems is constantly developing the performance of wet clutches used in passenger car all-wheel drive systems. The Haldex limited slip coupling, LSC, is the trade name of the all-wheel drive system sold and developed by BorgWarner Powerdrive Systems. LÄS MER

  4. 13. An Investigation of the Adhesive Interaction between Polyethylene and Silicone with DMA and AFM

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Joel Falk; [2019]
    Nyckelord :Atomic Force Microscope; Adhesion; Characterization; Dynamic Mechanical Analysis; Injection Molding; Polyethylene; Polymer; Silicone; Test method development; Materials chemistry; Materialkemi; Technology and Engineering;

    Sammanfattning : Stickiness between materials can be a challening task when dealing with the complex interactions and processes related to packaging engineering. Part of the problem is that many factors like temperature, pressure, surface treatment as well as surface roughness all could play a part in contributing to the stickiness between materials. LÄS MER

  5. 14. Thermal and Mechanical Analysis of a Sustainable Alternative to Neoprene Wetsuits

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Eric Holmström; Jakob Mattsson; [2019]
    Nyckelord :Wetsuit; Sustainability; Insulation; Thermal Conductivity; Elasticity; Technology and Engineering;

    Sammanfattning : A novel material composition has been investigated in terms of thermal, mechanical, economical and sustainable aspects to be compared to neoprene wetsuits. It is believed that a sandwich structure produced by a dipping method with rubber layers containing an insulating textile can insulate better than foamed neoprene. LÄS MER

  7. 15. Modeling and Simulation of Brake Squeal in Disc Brake Assembly

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Jenny Nilman; [2018]
    Nyckelord :Brake Squeal; Complex Eigenvalue Analysis; Model Validation; Parametric Study; High Frequency; Brake Noise;

    Sammanfattning : Brake squeal is an old and well-known problem in the vehicle industry and is a frequent source for customer complain. Although, brake squeal is not usually affecting the performance of the brakes, it is still important to address the problem and to predict the brakes tendency to squeal on an early stage in the design process. LÄS MER