Open AccessANALYSIS OF SCREW CONNECTION IN AIR CONDITIONING SYSTEMS
Author(s) -
Radka Jírová,
Lubomír Pešík
Publication year - 2022
Publication title -
zeszyty naukowe - politechnika śląska. transport/scientific journal of silesian university of technology. series transport
Language(s) - English
Resource type - Journals
eISSN - 2450-1549
pISSN - 0209-3324
DOI - 10.20858/sjsutst.2022.114.4
Subject(s) - connection (principal bundle) , coolant , reliability (semiconductor) , mechanical engineering , air conditioning , finite element method , spring (device) , service life , engineering , structural engineering , computer science , physics , power (physics) , quantum mechanics
Air conditioning systems in vehicles require long-term reliability during their entire service life. Especially, a good sealing function is needed for the prevention of coolant leaking. Unfortunately, in specific cases, after a particular time, screw connections of the air conditioning circuit lose their tightness, and the coolant starts to leak. Therefore, this paper focuses on the analysis and design optimisation of screw connections. We used the finite element method for describing the sealing, screw and disc spring behaviour. Then, we proposed a new design of the disc spring to obtain the proper force-deformation characteristics of the connection and ensure the tightness of the screw connection.