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Server Computer Rack Stiffening Members

IP.com Disclosure Number: IPCOM000247208D
Publication Date: 2016-Aug-16
Document File: 4 page(s) / 183K

Publishing Venue

The IP.com Prior Art Database


Disclosed are server computer rack stiffening members.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 51% of the total text.

Page 01 of 4

Server Computer Rack Stiffening Members

Today's data centers employ a predominance of the 19" rack-based IT computer hardware. Across the varied application space, this hardware may be either in a packaged (i.e., in boxes and installed at the data center) or unpackaged (i.e., ship-loadable). In the case of the latter, fully configured 42U (EIA) high racks necessitate supporting loads with total weight upwards of 1000-2500 lbs or 35-40 lb/EIA, and as such, limited offerings are available given the lack of robustness in available/industry standard racks. This lack of inherent robustness historically has been due to the need for the rack to physically reside on a single European floor tile width (with side covers). This width restriction coupled with the need to allow space for various features (i.e., cable management hardware, power distribution unit (PDU) placement, etc.) has further exasperated the rack's structural robustness. In the past, one means that has been employed was
to forego the width restriction, but this has not been met with universal industry acceptance. As a means to address the ship-loaded requirements, some rack offerings have either restricted the total rack load to less than full capacity (e.g., 1000 lb) or limited transit exposure (i.e., rolling across the data center versus being able to accommodate shipment from supplier to customer). Another aspect or limitations of today's 19" racks are their inherent inability to address requested seismic requirements (e.g., AC156, NEBS zone 4, etc.). To address this need, a comparative evaluation of the resonance frequency response was completed for a comparative set of current 19" racks (reference Table 1 below). Note, given the ability for "Rack 1" ability to meet the requirements, a fundamental frequency (cantilever shape) of greater than or equal to 6.2 Hz has been established at the design baseline. Note, the ability for the "Rack 3" with fillers to exceed this requirement is a misnomer, given the need to depopulate HDWE to facilitate the addition of the structural fillers. In addition, the ability to enhance the second and/or third resonant frequency (bow and twist shape, respectively) is reflective of improving the rack's inherent ability to further satisfy seismic requirements (...