32:; it allows two cylindrical objects to be clamped together end-to-end with a ring clamp. It is sometimes also known as a "Marman ring". It consists of a circular strap with an interior V-shaped groove. Tension is applied to the strap with a threaded bolt and nuts connecting to the ends of the strap. As the tension increases, the V-groove wedges over flanges on the circular parts to be assembled, providing the force that holds the ends of the two cylinders together. The Marman clamp is an alternative to a bolted flange connection which would be heavier and require more labor to connect. Another variety uses a flat strap, used where systems carry low pressure or to hold a cylindrical object in position.
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for release. These have problems of unpredictability, the need to contain debris and difficulties in testing them. A more recent approach uses a screw thread. The tension of the clamp band itself is used to power the unscrewing of a central bolt, when released by a pyrotechnic pin puller triggered by
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At the time it was designed to secure cargo during transport. The U.S. Military used Marman clamps to transport the
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A common use for Marman clamps is as quick-disconnect connectors in flexible aircraft fuel lines.
254:"Stress in V-section band clamps. Proceedings of the Institute of Mechanical Engineering Part C"
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48:: a semi-rigid bleed air duct from a jet engine (left) and a semi-flexible fuel hose (right).
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http://www.saywell.co.uk/wp-content/uploads/2011/09/TF100-14D_MarmanClampProducts.pdf
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The Marman clamp was first produced by
Herbert Marx, better known by his stage name
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Chandler, Charlotte. Hello, I Must Be Going: Groucho And His
Friends, page 182,
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Marman clamps are found in many modern moving vehicles, though the
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Marman V-Band
Couplings, Flangs, Band Clamps and Strap Assemblies
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94:. They may also be used to join stages of a booster rocket.
97:Early separation systems using Marman clamps used
302:Proc. of the 41st Aerospace Mechanisms Symposium
252:Shoghi, K.; Rao, H. V.; Barrans, Simon (2004).
357:Born in the USA: The Book of American Origins
295:"Refinement of a Low-Shock Separation System"
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64:and are common mechanical load-transfer and
261:Journal of Mechanical Engineering Science
129:used at the end of the Second World War.
44:Aerospace pipe fittings with flanges for
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214:"Marman Clamp System Design Guidelines"
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118:; it was manufactured by his company,
60:Marman clamps are used extensively in
136:type clamp is becoming more popular.
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189:"Oldies and Oddities: Zeppo's Gizmo"
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359:,Skyhorse Publishing Inc., 2009
68:mechanisms for connecting the
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377:Donnelly, Jim (August 2009).
88:Cassini Plasma Spectrometer
20:Typical Marman Clamp System
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273:10.1243/095440604322900381
191:. AIR & SPACE MAGAZINE
306:Jet Propulsion Laboratory
293:Lazansky, Chuck (2012).
221:Guideline no. GD-ED-2214
174:, retrieved Dec 31, 2019
104:NASA Standard Initiators
28:is a type of heavy-duty
424:Spaceflight technology
86:, for example, on the
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399:The CAPS Launch Latch
56:Spacecraft separation
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383:Hemmings Classic Car
102:a set of redundant
62:spaceflight systems
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379:"Why a Clamp?"
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367:"Zeppo Marx"
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310:. Retrieved
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276:. Retrieved
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236:. Retrieved
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267:: 251–261.
70:upper stage
408:Categories
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238:2012-10-20
157:References
146:Hose clamp
134:screw band
116:Zeppo Marx
30:band clamp
74:satellite
419:Plumbing
312:11 March
278:11 March
195:11 March
140:See also
106:(NSIs).
84:vehicles
72:and the
66:clamping
110:History
90:on the
77:payload
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298:(PDF)
263:. 3.
257:(PDF)
232:(PDF)
217:(PDF)
81:space
361:ISBN
340:ISBN
314:2014
280:2014
225:NASA
197:2014
269:doi
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