Sökning: "squeal"

Visar resultat 1 - 5 av 10 avhandlingar innehållade ordet squeal.

  1. 1. Drum Brake Squeal

    Författare :Johan Hultén; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; friction induced; squeak; vibration; drum brake; squeal; instability; self-excited; noise;

    Sammanfattning : Drum brake squeal is a common discomfort. The main goal of this thesis is to investigate the mechanisms that generate drum brake squeal and to create a base for the search for solutions. A series of steps towards the understanding of these mechanisms are taken. Firstly, a simple model for friction-induced vibration is presented. LÄS MER

  3. 2. Some mechanisms generating drum brake squeal Johan Hultén

    Författare :Johan Hultén; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; squeal; brake; vibration; drum; disc; noise; squeak;

    Sammanfattning : .... LÄS MER

  4. 3. Friction and contact phenomena of disc brakes related to squeal

    Författare :Mikael Eriksson; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Tribology; contact mechanics; squeal; brake pad; disc brake; friction; Materialvetenskap; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Sammanfattning : Brake squeal is a sound with a main frequency between 1 and 20 kHz, generated by an oscillation of the components of the brake system. The energy driving the oscillation is supplied by the friction between the disc and the pads. LÄS MER

  5. 4. Engineering model for curve squeal formulated in the time domain

    Författare :Ivan Zenzerovic; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; tangential point-contact model; time domain; frictional instability; Curve squeal; rolling contact; non- Hertzian contact;

    Sammanfattning : Curve squeal is a type of railway noise that may arise when a railway vehicle negotiates a relatively tight curve. Squeal is common in curves of a radius lower than 200 meters. A single frequency dominates the radiated sound, which makes squeal a very tonal noise. LÄS MER

  7. 5. Mechanisms and Phenomena in Braking and Gripping

    Författare :Lars Hammerström; Staffan Jacobson; XXX XXX; Uppsala universitet; []
    Nyckelord :Materials science; Friction; Brake; Texture; Squeal; Materialvetenskap;

    Sammanfattning : Applications relying on a high static friction include various types of fixtures, couplings, bolted joints, torsion joints, etc. The common characteristic of these applications is that they rely on the friction force to maintain the relative position of two mating surfaces. LÄS MER