Repository logo

Browsing by Subject "NDT testing"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • thumbnail.journal.alt
    Item type:Article, Access status: Open Access ,
    Analiza przyczyn powstawania pęknięć zmęczeniowych w konstrukcji bębna pędnego maszyny wyciągowej
    (Wydawnictwa AGH, 2005) Cichociński, Andrzej; Ładecki, Bogusław
    Still in use today there are some hoisting mining machines with motion wheels, the construction of which uses ri-gid 'U' shaped diaphragms to connect side disks. In such wheels periodically, after servicing, fatigue cracks are being found. The authors performed strength analysis done by the finite elements method, and verified its results using appropriate tensammetric measurements. The measurements and analyses performed confirmed that direct cause of the fatigue cracks in the barrels is over-rigidity of the structure due to stiff diaphragms joining the wheel disks. Based on this, recommendations were issued regarding modernization of motion wheels in the discussed ho-isting machines.