Investigation of thermomechanical processes in miniature membrane elastic elements

• Autorzy: Tykhan M. , Dilay I. , Markina O. , Markovych V.

Identyfikatory

DOI

10.5604/01.3001.0014.0814

• Języki publikacji: EN

Abstrakty

EN

Purpose: The demand for the devices structures reliability and machines requires understanding elements operation, in particular elastic elements, under the effect of nonstationary temperature factors. Therefore, it is important to investigate the behaviour of these elements under variable temperature effecting. Design/methodology/approach: In this article, the temperature field and the thermal stresses of the membrane type elastic elements, as well as the thermal deformation of its body part were investigated by the method of numerical analysis. The theoretical results have experimental confirmation. Findings: The article shows possibilities significantly reduce the thermal stress in an elastic element, thereby increase its functional and structural reliability by varying the geometric parameters of the elastic element, the materials selection, and body shape. Research limitations/implications: Numerical modelling of thermal processes requires accurate information about the physico-mechanical properties of materials and heat-exchange coefficient, which in practice may differ from the theoretical ones. Therefore, experimental confirmation of research and decisions is needed. The influence of the "hot" thermal shock was investigated. There is performed interest to investigate the "cold" thermal shock. Practical implications: The obtained results allow creating elastic elements with better functional characteristics for operation in a wide temperature range. They can also be used in the designing of elastic elements not only of membrane type. Originality/value: Performed investigation of thermomechanical processes in the membrane elastic element has revealed important features of its temperature deformations with nonstationary thermal influence. Namely, the nature of thermal deformations can be changed by selecting the geometrical parameters of the element, its material, as well as the conditions of heat-exchange conditions with mating member (body). In this way, it is possible to obtain a controlled deformation and to design the elastic elements with predetermined functional tasks. On the other hand, the design of the membrane element body can create elastic hinges, which allows reducing the thermal stress in the membrane, which significantly increases the reliability of the element operation of this type in conditions of non-stationary temperatures. In general, the conducted investigations allow efficient design of elastic elements for devices, sensors and other precision mechanisms.

Słowa kluczowe

EN

thermal stress; thermal deformation; thermal shock; elastic elements; elastic hinge

PL

naprężenie termiczne; odkształcenia cieplne; szok termiczny; elementy elastyczne; zawias elastyczny

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2020
• Tom: Vol. 98, nr 1
• Strony: 24--31
• Opis fizyczny: Bibliogr. 13 poz., rys., wykr.

Twórcy

autor

Tykhan M.

• Lviv Polytechnic National University, Department of Precision Mechanics Devices, 19 Kniazia Romana Str., Lviv,79013, Ukraine

autor

Dilay I.

• Lviv Polytechnic National University, Department of Automation and Computer-Integrated Technologies, 5 Ustyyanovych str., Building 10, Lviv,79013, Ukraine

autor

Markina O.

• National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Department of Scientific, Analytical and Ecological Instruments and Systems, Peremohy ave., 37, Kyiv, 03056, Ukraine

autor

Markovych V.

• Lviv Polytechnic National University, Department of Precision Mechanics Devices, 19 Kniazia Romana Str., Lviv,79013, Ukraine

Bibliografia

• [1] M. Kraft, N.M. White (Eds.), Mems for Automotive and Aerospace Applications, Woodhead Publishing Series in Electronic and Optical Materials, Woodhead Publishing Limited, 2013.
• [2] L. Critchley, Applications and Characteristics of Sensors Made from Ceramics, AZO Materials (2020), Available at: https://www.azom.com/article.aspx?ArticleID=18849.
• [3] Custom Pressure Sensors for the Aerospace Industry. Merit Sensor, Available at: https://meritsensor.com.
• [4] S. Bhattacharya, A.K. Agarwal, O. Prakash, S. Singh, M. Pandey, R. Kant, Introduction to Sensors for Aerospace and Automotive Applications, in: S. Bhattacharya, A.K. Agarwal, O. Prakash, S. Singh (Eds.), Sensors for Automotive and Aerospace Applications, Springer, Singapore 2019, 1-6.
• [5] M.P. Mouser, High performance MEMS sensors for smarter vehicles, Components in Electronics (2020), Available at: https://www.cieonline.co.uk/highperformance-mems-sensors-for-smarter-vehicles/.
• [6] R. Dindorf, Flexible pneumatic actuators, Kielce University of Technology Publishing House, Kielce, 2013 (in Polish).
• [7] U.K. Chakravarty, R. Albertani, Experimental and finite element modal analysis of a pliant elastic membrane for micro air vehicles applications, Journal of Applied Mechanics 79/2 (2012) 021004, DOI: https://doi.org/10.1115/1.4005569.
• [8] E.A. Mokrov, V.A. Vasilev, E.M. Belozubov, Application thermoprotective films for minimizing the influence of non-stationary temperature on thin-film piezoresistive pressure sensors, Sensors and Systems 9 (2015) 21-23 ( in Russian).
• [9] J.A. Chiou, Thermal Warpage and Pressure Nonlinearity Analyses for Monolithic Piezoresistive Sensing Elements, Proceedings of the ASME 2002 International Mechanical Engineering Congress and Exposition, New Orleans, Louisiana, USA, 2002, 9-14, DOI: https://doi.org/10.1115/IMECE2002-39264.
• [10] P.K. Panda, T.S. Kannan, J. Dubois, C. Olagnon, G. Fantozzi, Thermal shock and thermal fatigue study of ceramic materials on a newly developed ascending thermal shock test equipment, Science and Technology of Advanced Materials 3/4 (2002) 327-334, DOI: https://doi.org/10.1016/S1468-6996(02)00029-3.
• [11] H.S. Carslaw, J.C. Jaeger, Conduction of heat in Solids, Second Edition, Oxford University Press, 1986.
• [12] W. Nowacki, Thermoelasticity, ZniO, Wroclaw, 1972 (in Polish).
• [13] P. Bała, Influence of solution heat treatment on the microstructure and hardness of the new Ni-based alloy with a high carbon content, Archives of Materials Science and Engineering 45/1 (2010) 40-47.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).