Muhamad Saifuldin Abdul Manan, Assoc. Prof. Dr.
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/43312
This page provides access to scholarly publication by UniMAP Faculty members and researchers2024-03-29T14:37:20ZFinite element analysis of new type of chassis for system of rice intensification (SRI) cultivation: A case study
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/43806
Finite element analysis of new type of chassis for system of rice intensification (SRI) cultivation: A case study
Syedi Imran, Dawi; Muhamad Saifuldin, Abdul Manan; Ahmad Nabil, Mohd Khalil; Mohd Khairy, Md Naim; Ahmad Faizal, Annuar
The new design agriculture chassis was successfully developed to support System of Rice Intensification (SRI) cultivation practices in Malaysia. The design of the chassis is able to carry small size petrol engine, sprocket and chain drive system. Future mechanism for weeder and transplanter can be attached at the rear of the chassis. FEA is divided into three main parts i.e chassis, wheel and handle. FEA results are based on safety factor value (FOS). FOS for the wheel during movement is the lowest which equal to 1.1. Since the load applied for FEA is approximately doubled than actual condition, the value of this FOS is considered sufficiently safe.
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2015-07-27T00:00:00ZInvestigation on Nylon PA66 side arms using Taguchi and ANOVA analysis in reducing cost of producing urinary catheters
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/43801
Investigation on Nylon PA66 side arms using Taguchi and ANOVA analysis in reducing cost of producing urinary catheters
Mohd. Fathullah, Ghazli @ Ghazali; Shayfull Zamree, Abd Rahim; Norshah Afizi, Shuaib; Mohd. Nasir, Mat Saad; Muhamad Saifuldin, Abdul Manan
This article discusses on a research experience and finding based on a collaboration with a medical equipment manufacturer in producing urinary catheters. The manufacturer had been spending high cost yearly to replace more than 1,000 units of side arms on each design of catheter. It is found that new side arms made from Nylon PA66 using an injection molding process is much more cost effective. While producing the new side arms using an injection molding process, this article also discusses on an analysis made in predicting the most significant injection molding process parameters involved in producing Nylon PA66 side arms that led to a popular warpage issue. The parameters concerned are melt temperature, filling time, packing pressure and packing time. A model of side arm is designed and simulated using simulation software to imitate the real operation of an injection moulding process. These parameters are then analyzed with respect to the deflections occurred using Taguchi method and further verified by using Analysis of Variance (ANOVA) technique. At the end of this study, it is found that melt temperature and packing time play the most significant role to the existence of warpage of side arms made from Nylon PA66. At the end of this research, it is found that nylon can be an alternative material in manufacturing side arms in reducing cost of manufacturing at 83.3% which is used in manufacturing urinary catheters.
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2011-11-01T00:00:00ZPreliminary study of using kerf as an alternative to crack interactions in multiple edge cracks based on non-uniform stress distribution
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/43798
Preliminary study of using kerf as an alternative to crack interactions in multiple edge cracks based on non-uniform stress distribution
Ahmad Faizal, Annuar; Muhamad Saisuldin, Abdul Manan; Haftirman; Ahmad Nabil, Mohd Khalil
Multiple cracks with different or similar geometries that coexist on the same plane will affect its neighbouring counterpart’s Stress Intensity Factor (SIF) value due to interaction effect. The interaction effect is much related to the change of stress distribution profile that produced by neighbouring crack. This study attempts to simulate and find a possibility to replace subsequent crack interaction to primary crack with kerf by evaluating the longitudinal stress distribution component. For this paper, the scope focuses on emulating two parallel edge cracks’ interaction as initial attempt. Through simulation on ABAQUS Computer Aided Engineering (CAE), values of non-uniform stress distributions that produced by kerf within the potential primary crack region was analyzed and compared to non-uniform stress distributions that produced by a crack as validation. Absolute error tabulation of stress distribution that produced by kerf suggests that it is fit to replace subsequent crack for further study of interaction in multiple cracks.
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2014-01-01T00:00:00ZA new approach to reduce the thermal modeling experiment time by estimating the settling time
http://dspace.unimap.edu.my:80/xmlui/handle/123456789/43792
A new approach to reduce the thermal modeling experiment time by estimating the settling time
Nor Zaiazmin, Yahaya; Khairul Azwan, Ismail; Mohd Saifuldin, Abdul Manan; Atikah, Haji Awang
In order to develop a thermal model for a generator or a motor, several experiments need to be conducted. One of the challenges in conducting the experiment is that it consumes a lot of time to reach its steady state condition. This is because a generator or a motor has a lot of moving parts and a large amount of surface area causes a very slow rise in temperature. This paper proposes a new method to reduce the experimental time by estimating the settling time using a modeling technique used in the control system engineering. From the data presented, the experimental time can be reduced approximately 55 percent. Furthermore, it is also found that the average steady state temperature for the wire winding is 47.55°C and the predicted temperature from the formulated equation is 47.09°C with error less than 1 percent.
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2014-01-01T00:00:00Z