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Articles by Khairul Fuad
Total Records ( 2 ) for Khairul Fuad
  Windarta , M. Bin Sudin and Khairul Fuad
  The interaction between wheel-rail produced defects on each other. Many studies of wear were done on interaction between the wheel-rail proposed using pin on disk tribometer. The present study proposes extend research using pin on disk with normal loads. The research aimed to determine the influence of applied load toward wear rate and wear mechanism on rail materials. Wear rate is determined using volumetric loss, and wear mechanisms on interaction between wheel-rail can be analyzed using Scanning Electron Microscopy (SEM). Energy Dispersive X-ray Spectroscopy (EDX) supposed to detect possibilities the presence of other elements on debris wear. The results show wear rate increase linearly from 2.27, 3.40 and 6.81 mm3 km-1 on 20, 40 and 60 N applied load, respectively. Experimental result shows that the wear rate increases 0.1135 in proportionally with the increasing of applied load. Wear mechanisms begin from abrasive wear of both contact surfaces, then following severe adhesive wear. EDX analysis shows presence of the third body from internal and external elements of contact surface material.
  Edwar Yazid , Setyamartana Parman and Khairul Fuad
  In this paper, dynamic behavior of non-slewing-luffing crane type, namely gantry crane is investigated by introducing the flexibility of crane framework and hoist cable. The dynamic model of such system is obtained by modeling crane framework using finite element method and gantry crane system by using Lagranges equations. The equations of motion constitute nonlinear coupling terms between crane framework and crane system. The coupled dynamic equations are solved numerically using a combinational direct integration technique, namely Newmark-β and fourth-order Runge-Kutta method. Numerical simulations are carried out to obtain the open-loop responses as functions of limited set parameters for quite simple but representative for gantry crane system.
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