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Wyszukujesz frazę "Balasubramanian, V." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Identifying combination of friction stir welding parameters to maximize strength of lap joints of AA2014-T6 aluminum alloy
Autorzy:
Rajendrana, C.
Srinivasan, K.
Balasubramanian, V.
Balaji, H.
Selvaraj, P.
Powiązania:
https://bibliotekanauki.pl/articles/94198.pdf
Data publikacji:
2017
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
friction stir welding
aluminum alloy
response surface methodology
lap joint
tensile strength
zgrzewanie tarciowe
stopy aluminium
metodologia odpowiedzi powierzchni
połączenie zakładkowe
wytrzymałość na rozciąganie
Opis:
AA2014 aluminum alloy (Al-Cu alloy) has been widely utilized in fabrication of lightweight structures like aircraft structures, demanding high strength to weight ratio and good corrosion resistance. The fusion welding of these alloys will lead to solidification problems such as hot cracking. Friction stir welding is a new solid state welding process, in which the material being welded does not melt and recast. Lot of research works have been carried out by many researchers to optimize process parameters and establish empirical relationships to predict tensile strength of friction stir welded butt joints of aluminum alloys. However, very few investigations have been carried out on friction stir welded lap joints of aluminum alloys. Hence, in this investigation, an attempt has been made to optimize friction stir lap welding (FSLW) parameters to attain maximum tensile strength using statistical tools such as design of experiment (DoE), analysis of variance (ANOVA), response graph and contour plots. By this method, it is found that maximum tensile shear fracture load of 12.76 kN can be achieved if a joint is made using tool rotational speed of 900 rpm, welding speed of 110 mm/min, tool shoulder diameter of 12 mm and tool tilt angle of 1.5.
Źródło:
Archives of Mechanical Technology and Materials; 2017, 37; 6-21
2450-9469
Pojawia się w:
Archives of Mechanical Technology and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparative study of cooling of automobile LED headlights without and with fins and finding comfortable operating conditions
Autorzy:
Mishra, Manbodh Kumar
Chandramohan, V. P.
Balasubramanian, Karthik
Powiązania:
https://bibliotekanauki.pl/articles/139930.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
LED lights
automobile headlight
finite element method
junction temperature
safe working conditions
Opis:
LED light must be cooled to avoid reaching a certain temperature. Two different 3D practical domains of LED light are modelled, (i) square aluminium plate with a cylindrical plate and an LED module (model I), (ii) the same provision of model I with 25 fins (model II). ANSYS 16.0 is used for solving the problem. Temperature distribution, junction temperature (Tj ) and heat flux are estimated. Analyses are carried out for various ambient temperatures (Ta) and for different LED power dissipations (Q) to identify the safe operating conditions. In model I, it is found that 38% of working conditions go beyond the critical limit of Tj and it is reduced to 21.4% in model II. In model II, for low Ta of 30 and 40 C with all Q considered in this analysis are safer. If Ta is between 30 and 80 C, then Q must be maintained at 0.5 to 1.25 W. Beyond this, conditions are not safe.
Źródło:
Archive of Mechanical Engineering; 2019, LXVI, 3; 295-314
0004-0738
Pojawia się w:
Archive of Mechanical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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