Analysis of OH Bolted Ear Connection

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Description

The D0 endcap calorimeter outer hadronic (OH) modules play a major structural role in the calorimeter assembly. The disrete modules, once connected together, form a ring within which other massive calorimetry will reside. It has been proposed that the connection of the OH at the downstream end be accomplished by extending the downstream endplates in the radial direction to form 'ears', and then through-bolting between adjacent ears as shown in Fig. 1. A single 2 1/4 in. dia. bolt is used, and previous calculations have determined that the design load on this joint should be 130,000 lbs tension. The high ... continued below

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12 pages

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Wands, Bob December 30, 1987.

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Description

The D0 endcap calorimeter outer hadronic (OH) modules play a major structural role in the calorimeter assembly. The disrete modules, once connected together, form a ring within which other massive calorimetry will reside. It has been proposed that the connection of the OH at the downstream end be accomplished by extending the downstream endplates in the radial direction to form 'ears', and then through-bolting between adjacent ears as shown in Fig. 1. A single 2 1/4 in. dia. bolt is used, and previous calculations have determined that the design load on this joint should be 130,000 lbs tension. The high load and serious consequences of failure make this a critical component in the calorimeter assembly. The purpose of this analysis is to investigate the stresses in the connection and other mechanical characteristics which determine joint performance.

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12 pages

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  • Report No.: FERMILAB-D0-EN-133
  • Grant Number: AC02-07CH11359
  • DOI: 10.2172/1030685 | External Link
  • Office of Scientific & Technical Information Report Number: 1030685
  • Archival Resource Key: ark:/67531/metadc836611

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • December 30, 1987

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Aug. 30, 2016, 3:45 p.m.

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Wands, Bob. Analysis of OH Bolted Ear Connection, report, December 30, 1987; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc836611/: accessed April 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.