APPLICATION OF DIFFERENTIAL EVOLUTION ALGORITHM FOR PARAMETRIC OPTIMIZATION OF WEDM WHILE MACHINING NIMONIC-263 ALLOY
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): SREENIVASA RAO M , VENKAIAH N
Abstract: Nimonic-263 is a nickel-chromium-cobalt-molybdenum alloy specially meant for use in high temperature and high strength applications. This material is mainly used in gas turbine hot section components. Machining of these high strength materials is a challenging task now a days. Wire cut electrical discharge machining is one of the advanced machining processes and can be used to machine any material, which can electrically conduct, irrespective of its hardness. Selection of process parameters plays a vital role to yield the desired level of performance. An attempt has been made in this work to investigate the behavior of WEDM process while machining Nimonic-263. Response surface methodology has been used for the experimental plan. The influence of process parameters such as pulse on time, pulse off time, peak current and servo voltage on response parameters such as material removal rate and surface roughness has been studied in this work. Mathematical models are developed to predict thes
- Publication Date: 22-Feb-2015
- DOI: 10.15224/978-1-63248-039-2-82
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IMPACT OF ROAD GEOMETRY &TRAFFIC CONDITION ON PCU VALUES USING PARAMICS
Published In: INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND MECHANICAL ENGINEERING
Author(s): KUNAL HUI , SANDEEP K PRUSTY , ROOPAK PHADNIS
Abstract: Traffic condition in India is highly heterogeneous condition, where vehicles of varying static and dynamic characteristics occupy the same space. Expressing traffic capacity in terms of number of vehicles passing a given section of road or traffic lane per unit time will be inappropriate under these conditions. The problem of measuring traffic volume and traffic capacity of such heterogeneous traffic can be worked out by converting the different types of vehicles into equivalent passenger cars and expressing the capacity in terms of Passenger Car Unit (PCU) per hour. The objectives of this study are to develop capacity guidelines for the traffic flow on NH – 17 and to evaluate the effect of carriageway width and traffic composition on the PCU value of all the categories of vehicles. PARAMICS micro simulation software is used in this study. The PCU values of different categories of vehicles estimated from the study under heterogeneous traffic condition for observed roadway conditions an
- Publication Date: 22-Feb-2015
- DOI: 10.15224/978-1-63248-039-2-86
- Views: 0
- Downloads: 0