ESDU 82012:2013

$62.40

Nested Helical Compression Springs of Round Wire (To Be Used in Conjunction with ESDU 82008)

Published By	Publication Date	Number of Pages
ESDU	2013-01	25

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Category: ESDU

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Description

ESDU 82012 provides data, in graphical form where possible, for
the design of helical compression springs acting in combination.
The design process is applicable to either two or three springs
arranged concentrically or just two springs arranged
telescopically. Clearance between concentric springs is obtained by
using a clearance factor incorporated into the design equations –
minor discrepancies produced between calculated and recommended
clearances are discussed. Design notes on nested springs are
provided and a shortened process explained in which an existing
single spring design may be directly replaced with a nest in order
to reduce either stress, length or outside diameter. Three worked
examples are provided concerning the design of both types of
nest.