Modeling the Effects of Bolt Preload  

Oleh:

Lee, Moo-Zung

Jenis: Article from Bulletin/Magazine - ilmiah internasional
Dalam koleksi: Machine Design (Soft Copy ada dalam http://search.proquest.com/) vol. 82 no. 15 (Sep. 2010), page 62.
Topik: Bolted Joints; Preloading; Stiffness

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM44.62 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Torquing down nuts and bolts, as any handyman or mechanic knows, makes for secure joints. The question is how much preload is just right? External tension applied to a nonpreloaded joint transmits entirely to the bolt. The stiffness of a bolted joint without a preload equals the bolt stiffness, ke = kb. For a preloaded bolted joint, joint stiffness is the sum of the bolt and clamped-member stiffnesses, ke = kb + kc. Therefore, preloading stiffens bolted joints, which also increases the resonant frequency of an assembly.

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