Sökning: "Passive damping"

Visar resultat 1 - 5 av 34 avhandlingar innehållade orden Passive damping.

  1. 1. On modally distributed damping in heavy vehicles

    Författare :Peter Holen; Annika Stensson Trigell; Zbigniew Lozia; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; damping; modal damping; chassis suspension; heavy vehicle; attachment compliance; Physics; Fysik;

    Sammanfattning : This thesis investigates passive damping system performance in heavy vehicles through analytical expressions, simulations with different vehicle models as well as through experimental evaluation in a tractor semi trailer combination. The objective is to study what levels of chassis suspension damping that are desirable for different vehicle modes and how this may be achieved with passive damping systems. LÄS MER

  3. 2. Improving Machining System Performance through designed-in Damping : Modelling, Analysis and Design Solutions

    Författare :Lorenzo Daghini; Cornel Mihai Nicolescu; Miroslav Píška; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Machining performance; Cutting stability; Passive damping; High Damping Interface; Boring bar; Turret; SRA - Production; SRA - Produktion;

    Sammanfattning : With advances in material technology, allowing, for instance, engines to withstand higher combustion pressure and consequently improving performance, comes challenges to productivity. These materials are, in fact, more difficult to machine with regards to tool wear and especially machine tool stability. LÄS MER

  4. 3. A study of active-passive damping treatments

    Författare :Hélène Illaire; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; active vibration control; damping mechanisms; active constrained layers;

    Sammanfattning : Active Constrained Layer (ACL) treatment is a vibration-damping treatment which consists of a viscoelastic layer constrained by an actuator. It dissipates energy simultaneously by the shearing of the viscoelastic layer and by the action of the actuator. LÄS MER

  5. 4. Passive vibration damping in machining systems

    Författare :Amir Rashid; KTH; []
    Nyckelord :;

    Sammanfattning : .... LÄS MER

  7. 5. On passive and active control of machining system dynamics : analysis and implementation

    Författare :Amir Rashid; Cornell Mihai Nicolescu; Drogos A. Axinte; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; machining system; chatter; productivity; palletised workholding; damping; tuned viscoelastic damper; Manufacturing engineering; Produktionsteknik;

    Sammanfattning : .... LÄS MER