Browsing Mohd Hafis Sulaiman, Dr. by Issue Date

Now showing items 1-12 of 12

    • Effects of rim and web thicknesses on root stresses of thin-rimmed helical gear 

      Imaduddin Helmi, Wan Nordin; Mohd Hafis, Sulaiman; Daing Idris, D. M N; Che Abdullah, S. S; Miyachika, Kouitsu; Ando, Kazuaki; Koide, Takao (Applied Mechanics and Materials, 2012)
      This paper presents a study on root stresses of thin-rimmed helical gears with web arrangement of various rim and web thickness. Thin-rimmed helical gears used in this study were meshed with solid helical gear. Root ...

    • Effect of extrusion ratio on paraffinic mineral oil lubricant in cold forward extrusion 

      Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Imaduddin Helmi, Wan Nordin; Syahrullail, Samion, Dr. (American Institute of Physics, 2012)
      A finite element (FE) analysis is made for steady-state two-dimensional forward extrusion with three different extrusion ratio values. Predicting extrusion force of aluminum billet extruded with palm oil lubricant will ...

    • Bending fatigue strength of case-carburized spur gears with boss 

      Imaduddin Helmi, Wan Nordin; Mohd Afendi, Rojan; Salmie Suhana, Che Abdullah; Mohd Hafis, Sulaiman (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      Studies on the spur gear, to increase the bending fatigue strength have been published by adopting gear with high pressure angle and positive addendum modification factor. However, studies on the spur gear with wide ...

    • Load-displacement behavior of RBD palm stearin oil lubricant quantity in cold extrusion 

      Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Mohd Afendi, Rojan; Imaduddin Helmi, Wan Nordin; Boon, Raymond Whee Heng; Syahrullail, Samion, Dr. (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      Large consumption of lubricant may affect the environment due to their high potential of pollution. Therefore, there is significant demand to provide a solution to this current condition by using alternative lubricant ...

    • Study on strength of V-shaped epoxy adhesive joint 

      Mohd Afendi; Mohd Hafis, Sulaiman; Ishak, Ibrahim; Nakajima, Toru; Maeda, Masashi; Teramoto, Tokuo (Universiti Malaysia Perlis (UniMAP)Pusat Pengajian Kejuruteraan Mekatronik, 2012-02-27)
      This paper deals with strength and failure prediction of V-shaped epoxy adhesive joint. The effect of scarf angle and bond thickness upon the joint strength is investigated by tensile test. A simple failure criterion ...

    • Optimal coefficient of friction onartificial knee joint contact surfaces 

      Mohd Hafis, Sulaiman; Nur Farahana, Ramli; Mohd Ridzuan, Mohd Jamir; Nur Adlina, Mohd Takhiudin (Trans Tech Publications, 2013)
      Wear generated by the presence of frictiononknee joint contact surfaces can cause debris, which may lead to failure of the artificial knee joint. In this study, the effects of friction coefficients occur on the knee joint ...

    • Identification of limiting friction coefficient towards improved hip prostheses 

      Mohd Hafis, Sulaiman; Nur Farahana, Ramli; Mohd Ridzuan, Mohd Jamir; Siti Mahani, Said (Trans Tech Publications, 2013)
      Wear generated by the presence of friction on hip joint contact surfaces can cause debris, which may lead to loosening and failure of the hip prostheses. The objective of this study is to examine the limiting friction ...

    • Paraffinic mineral oil lubrication for cold forward extrusion: Effect of lubricant quantity and friction 

      Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Nur Farahana, Ramli; Syahrullail, Samion (Elsevier Ltd., 2013)
      In this paper, Finite Element (FE) and experimental analyses have been developed on the deformation of aluminium billet over a tool. Effect of friction resulted from the use of additive-free ISO460-compliant paraffinic ...

    • Performance of thermoelectric cooling system: effect of aluminium heat sink and heat dissipation 

      Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Ahmad Firdaus, Ahmad Zaidi; Mohammad Shahril, Salim; Nur Farahana, Ramli; Cheong, Chee Kin (Trans Tech Publications, 2014)
      This paper presents theoretical and experimental research works on the effect of aluminium heat sink and heat dissipation in a portable thermoelectric (TE) cooling system. In this study, three units of TE modules were ...

    • An experimental investigation of palm pressed fibre waste as lubricant in strip drawing 

      Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Alina Rahayu, Mohamed; N. Farahana, R.; Syahrullail, Samion, Assoc. Prof. Dr. (Penerbit UTM Press, 2014)
      The abundance of palm pressed fibre (PPF) biomass waste generates greenhouse gases. Therefore, an experimental study on catalytic pyrolysis technology using a tubular reactor on PPF oil was performed at temperature of 450 ...

    • Design and development of tracking system for mines detector robot 

      Ahmad Firdaus, Ahamad Zaidi; Ng Shao, Liang; Mohd Hafis, Sulaiman; Mohd Ridzuan, Mohd Jamir; Nur Hidayah, Ahmad Zaidi (Trans Tech Publications, 2014-01)
      This paper presents the design and development of tracking system for the mines detector robot. The scope for the tracking system covers two important tasks: 1. Design of optimum tracking path to cover maximum scanning ...

    • Effect of surface roughness of pure aluminium A1100 on the cold work extrusion by using different angles of taper die 

      Mohd Ridzuan, Mohd Jamir; Mohd Hafis, Sulaiman; Azduwin, Khasri; Alina Rahayu, Mohamed; N. Fitriah, Suhaimi; Mohd Shahril, Shariff (Trans Tech Publications, 2014-01)
      The study presented in this paper is focused on the effect of surfaces roughness of pure aluminium A1100 on the cold work extrusion process by three different angles of taper die. Different angles of taper die will affect ...