Zafer, Afaqul and Yadav, Sanjay (2018) Design and Development of Strain Gauge Pressure Transducer Working in High Pressure Range of 500 MPa Using Autofrettage and Finite Element Method. International Journal of Precision Engineering and Manufacturing, 19 (6). pp. 793-800. ISSN 2234-7593

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Abstract

Development of strain gauge based pressure transducers is very common but its development in high pressure range without sacrificing cost effectiveness and design simplicity is a challenge. While keeping this perspective, we have discussed the development of strain gauge based hydraulic pressure transducer working up to pressure of 500 MPa. The present paper describes the different design stages bearing own challenges and feasible solutions. For design considerations, stress analysis has been performed by using finite element method (FEM). A mathematical modeling is developed for determining the sensitivity of the transducer and is validated with the experimental results. We have also introduced the concept of using autofrettage technique first time in pressure transducer design and its validity for effectiveness in the proposed design is performed with the help of the finite element analysis which reveals that the autofrettage of sensing element, not only increase the pressure bearing capacity of the transducer but also improve the sensitivity. Finally, we have performed the calibration and performance testing experiments on this newly manufactured transducer which shows good linearity (R-2=0.999), minimal hysteresis (0.18% of full scale), minimal short term repeatability (0.32% of full scale) and an overall accuracy better than 1% of full scale.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Springer Verlag.
Subjects:	Engineering Engineering > Mechanical Engineering
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	06 Dec 2019 11:47
Last Modified:	06 Dec 2019 11:47
URI:	http://npl.csircentral.net/id/eprint/3833

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