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Wyszukujesz frazę "Madhavan, R." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Effect of Machining Process Parameters and Number of Pass on Compaction Behaviour of Commercially Pure Aluminium Chips Consolidated by Equal Channel Angular Pressing (ECAP) Using Response Surface Methodology
Autorzy:
Palanivel, Ramaswamy
Vigneshwaran, S.
Alshqirate, Abedalrzaq
Madhavan, R.
Venkatachalam, P.
Laubscher, R. F.
Powiązania:
https://bibliotekanauki.pl/articles/2048762.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
ECAP
response surface methodology
relative density
machining
hardness
chip consolidation
Opis:
This work investigates the compaction behaviour of commercial pure aluminium chips (CP Al) produced during a machining operation and subsequently consolidated by Equal Channel Angular Pressing (ECAP). Empirical models were developed to describe the relative density and hardness of the compacted product of ECAP as functions of the initial machining input parameters including cutting edge angle (CA), depth of cut (DOC) and then the number of consolidation pass during ECAP. The models were developed utilizing response surface methodology (RSM) based on data from a central composite face centred factorial design of experiments approach. The models were then validated by using Analysis of Variance (ANOVA). The effect of input parameters on the relative density and hardness of the ECAP consolidated samples are presented and discussed including details as regards to the mechanical and microstructural properties. An optimum set of input parameters are identified and presented where the best relative density and hardness are demonstrated.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 357-370
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geometric factors influencing entry capacity of roundabouts under heterogeneous traffic conditions
Autorzy:
Zacharia, Arun Baby
Madhavan, Harikrishna
Anjaneyulu, M. V. L. R.
Powiązania:
https://bibliotekanauki.pl/articles/224085.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
roundabout
entry capacity
geometry
heterogeneous traffic
traffic conditions
regression
rondo
najazd
geometria ronda
ruch heterogeniczny
warunki drogowe
Opis:
Roundabout entry capacity is influenced by geometric features of the roundabout, traffic flow characteristics, vehicle are checked. In comparison with the existing empirical models such as the LR942 regression model and German empirical model, the proposed regression model produced better estimates and much lower RMSE values. Approach width is found to have the highest impact on entry capacity. The entry capacity is found to be negatively influenced by entry angle. Circulating flow is considered in terms of per metre width against the usual convention. This modification incorporates the effect of circulatory roadway width also into consideration. The circulatory roadway width has a diverse effect on entry capacity at different levels of circulating flow. Modification of inscribed circle diameter and circulatory roadway width is suggested as a potential solution for improving entry capacity. Sensitivity analysis is carried out to quantify the effect of variation of entry angle, circulatory roadway width, inscribed circle diameter and approach width on entry capacity based on the non-linear model. The sensitivity plots can be used to make subtle geometric modifications to improve capacity at congested roundabouts.
Źródło:
Archives of Transport; 2019, 49, 1; 87-101
0866-9546
2300-8830
Pojawia się w:
Archives of Transport
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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