Official Answer
Answer
Burqaawwan dalgee man’ee qaban keessatti, laayibaroonni yeroo garagalchanitti wal irratti siqxu. Yoo fuulli isaanii qalla’aa ta’e ykn dibanni yoo dadhabe, ‘Inter-turn Friction’ ho’a naannoo fi galling maddisiisa. Wal-nyaatinsi kun dhiibbaa bu’a qabeessa fibers alaa meeshaa sanaa irratti uuma. A fracture in a single turn of a nested spring typically shows 'beach marks' characteristic of fatigue, originating from a site of surface galling. Rakkoo furuun kan of keessaa qabu: 1) Yeroo fakkii kaasu xumura fuula sibiilli diriiraa fooyyessuu. 2) Applying a high-pressure lubricant. 3) Reducing the number of nested turns and increasing the material thickness of each turn to achieve the same rate with fewer sliding interfaces.
