Mathematical Model of Thermal Deformation in Precision Measurement and its Application

Abstract:

As everyone knows, the temperature changes can cause the changes of mechanical geometric size. The thermal deformation obtained by traditional calculation formulas are approximate and linear, used in low precision requirement, however, if applied in high precision field, it is very limited. In this paper, by using the relations between crystal material line expansion coefficient and volume expansion coefficient, we will establish the thermal deformation mathematical model of cylindrical shaft and hole parts in the steady temperature, the model will consider the effects of the shape factors of parts on thermal deformation.

• Periodical: Advanced Materials Research (Volume 411)
• Pages: 287-291
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.411.287
• Online since: November 2011
• Authors: Xiao Li Ma, Huai Bo Qiang, Xiao Zhou Feng
• Keywords: Mathematical Models, Measurement, Temperature Error

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