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Article #446Re: Interesting friction problem
From: Clive.Dennison
Date: Thu, 29 Dec 1994 17:30
Date: Thu, 29 Dec 1994 17:30
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2628 bytes
In article <parkD1GGAI.7KA@netcom.com> park@netcom.com (Bill Park) writes: >From: park@netcom.com (Bill Park) >Subject: Re: Interesting friction problem >Date: Tue, 27 Dec 1994 05:51:54 GMT >In article <3co66u$l6d@newsbf01.news.aol.com> tivers@aol.com (Tivers) writes: >> We are training racing thoroughbreds on high speed treadmills--fast >> conveyor belts with rubber surfaces. ... >> >> The belt gradually climbs to a temperature of 100F and stops getting >> warmer at that point, but the shoes of the horse (steel, aluminum, >> titanium, and plastic shoes have been tried, as well as bare feet) >> continue to become hotter and hotter until, at 4 miles of 3:00 rate >> work, we've seen temperatures as high as 240F. this heat buildup is >> probably pathologic at 120F and up, since nails travel through the >> shoes and into the sensitive laminae of the hoof. We are getting >> numerous necroses of the feet of these horses, although a single >> episode doesn't seem to bring on much in the way of trouble. Gallop 5 >> miles for a week, though, and we're down for a month with that horse. >> >> Tom Ivers >> Windy Ridge Farm >> (206) 837-3700 PM (206) 835-9344 AM 837-2102 Fax or Tivers@aol What happens with a moving horse? Does the horse perhaps need an airflow to cool its hooves? Would a fan help? Sorry, more questions than answers - the answer would be interesting. Clivius
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 107c0a,52ecc794ae37efc5 X-Google-Attributes: gid107c0a,public X-Google-Thread: f665a,52ecc794ae37efc5 X-Google-Attributes: gidf665a,public X-Google-Thread: 1141dc,711e9de3a657a613 X-Google-Attributes: gid1141dc,public X-Google-Thread: 1086ba,52ecc794ae37efc5 X-Google-Attributes: gid1086ba,public X-Google-Thread: 1119a6,52ecc794ae37efc5 X-Google-Attributes: gid1119a6,public X-Google-Thread: 10c3c1,52ecc794ae37efc5 X-Google-Attributes: gid10c3c1,public X-Google-ArrivalTime: 1994-12-29 11:53:54 PST Path: arc1-ca.pugleaf.net!nntp.gmd.de!Germany.EU.net!EU.net!howland.reston.ans.net!ee.und.ac.za!nntp.und.ac.za!pc049.ag.unp.ac.za!DennisonC From: DennisonC@biochem.unp.ac.za (Clive.Dennison) Newsgroups: sci.materials,rec.equestrian,bionet.general,sci.bio,sci.engr.biomed,sci.bio.technology,sci.bio Subject: Re: Interesting friction problem Date: Thu, 29 Dec 1994 17:30:17 GMT Organization: University of Natal , Pietermaritzburg, South Africa Lines: 30 Distribution: inet Message-ID: <DennisonC.105.2F02F229@biochem.unp.ac.za> References: <3co66u$l6d@newsbf01.news.aol.com> <parkD1GGAI.7KA@netcom.com> NNTP-Posting-Host: pc049.ag.unp.ac.za