## PSN-L Email List Message

**
Subject: Zero length spring discusion**

From: "Randy" rpratt@.............

Date: Wed, 20 Dec 2006 20:01:59 -0600

Hi All,
Continuing the spring discussion, what are the practical implications of =
a non-zero length? Suppose one wants a 1.5 - 2.0 second vertical =
similar to an AS-1. It isn't difficult to get there with a variety of =
springs. If the chosen spring has zero force at say mid length how will =
that influence the operation over a zero length spring? Isn't it period =
that matters and the zero length is important only for getting the =
longest possible length in period?
Hi All,

Continuing the spring discussion, what =
are the=20
practical implications of a non-zero length? Suppose one wants a =
1.5 -=20
2.0 second vertical similar to an AS-1. It isn't difficult to =
get=20
there with a variety of springs. If the chosen spring has =
zero force=20
at say mid length how will that influence the operation over a zero =
length=20
spring? Isn't it period that matters and the zero length is =
important only=20
for getting the longest possible length in period?

Randy

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