Sökning: "Vibration reduction"

Visar resultat 11 - 15 av 52 uppsatser innehållade orden Vibration reduction.

  1. 11. Numerical simulations of shear reinforced concrete beams subjected to blast loads

    Master-uppsats, KTH/Betongbyggnad

    Författare :Anton Frank; Andreas Fristedt; [2021]
    Nyckelord :Numerical simulations; shear reinforcement; blast loads; dynamic shear failure; Numeriska simuleringar; tvärkraftsarmering; luftstötvåg; dynamiskt skjuvbrott;

    Sammanfattning : Historical accidents and experimental investigations have made apparent that blast loaded concrete members are prone to fail in brittle shear rather than a ductile flexure mode. Air blasts from accidental detonations or explosives may cause severe damage to buildings and infrastructure and it is of great importance that load carrying members can withstand the impulse that arise to avoid progressive collapses. LÄS MER

  3. 12. Redesign and new design of a tooling to avoid vibrations in a drilling process

    Kandidat-uppsats, Högskolan i Skövde/Institutionen för ingenjörsvetenskap

    Författare :Igor Arana Semperena; Gorka Zudaire San Martin; [2020]
    Nyckelord :;

    Sammanfattning : This paper presents the analysis of the vibrations created in a tooling during a drilling operation, by using indexable drills and how each variable affect in its reduction. It also shows a new design for the used tooling with the different aspects it offers. LÄS MER

  4. 13. Finite Element Modeling of Short, Randomized Fiber Composite Material

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Simone Ambrogio; [2020]
    Nyckelord :;

    Sammanfattning : With the advent of hybrids and electric vehicles, the need for lightweight and highperformancematerials is growing. Sheet molding compound (SMC) is a compositemade of short and randomized  bers that o ers a substantial weight reduction andgood mechanical properties while meeting the demand for large volume production. LÄS MER

  5. 14. Simulation and experimental study for vibration analysis on rotating machinery

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Mohd Shafiq Sharhan bin Zainal; [2020]
    Nyckelord :Multi Degree of Freedom MDOF ; Rotating machinery; Single Degree of Freedom SDOF ; Unbalance; Vibration analysis;

    Sammanfattning : This student thesis aims to analyze the unbalance on rotating machinery by simulation and experimental. The machinery flywheel rotation is modelled as a Single Degree of Freedom (SDOF) and Multi Degree of Freedom (MDOF) system. The model rotation unbalance is simulated by MATLAB. Then the vibration measurement is taken by experimental. LÄS MER

  7. 15. Dynamic Analysis of an Automotive Power Transfer unit : Towards prediction of TE and housing vibrations

    Master-uppsats, KTH/Maskinkonstruktion (Avd.)

    Författare :Nikhil Maharshi Kosaraju; [2019]
    Nyckelord :Power transfer unit PTU ; Multi-Body Simulation MBS ; Transmission Error; Gear NoiseVibration; Modal Analysis; Vinkelväxlen PTU ; Multi-Body Simulering MBS ; transmissionsfel TE ; Växelljud och vibrationer; Modal analys;

    Sammanfattning : This work describes the use of Multi-Body Simulation (MBS) to create a virtual prototype of a geared drive called Power transfer unit (PTU). PTU is a subsystem of the all-wheel drive driveline responsible for transfer of power between front and rear axles in an Automobile. LÄS MER