MECHANICAL DESIGN OF NIS NEW REFERENCE TORQUE STANDARD MACHINE

K.M.Khaled, G.Aggag, A.E.Abuelezz, M.G.Elsherbiny

Abstract

Standard torque measuring machines and their traceability is relatively new in metrology field. The growing car manufacturing and assembly industry in Egypt made it necessary to develop a national standard for torque measurement which can provide traceability to the industry according to world wide standards. A new design of 3 kNm reference torque standard machine was therefore considered. The machine was designed following the component system principle based on the vertical axis measurement method, without intermediate bearing, which reduces about 70% of the cost. Prior to that, the parts chosen for the design as well as the machine structural parts are reviewed. Stresses in the critical parts of the machine are computed using Finite Element (FE) analysis to ensure that the designed machine can satisfy the International requirements.

Keywords

torque, torque standard machine, traceability

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IMEKO-TC3-2010-026.pdf

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IMEKO TC

TC3 - Measurement of Force, Mass, Torque, and Gravity

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