Sökning: "Johan Hammers"

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  1. 1. High frequency vibrations in chipping hammers

    Master-uppsats, KTH/MWL Strömningsakustik

    Författare :Johan Hedekäll; [2011]
    Nyckelord :;

    Sammanfattning : Percussive tools such as chipping hammers, riveting hammers and concrete breakers produce shock-type (impact) vibrations with large amount of vibration energy in the high frequency region (kHz). Reported injuries from shock-type and high frequency vibrations are higher  occurrence of vascular disorders, myelin disruption, edema and reduced motor performance. LÄS MER