Mohd Hafif Basha Mohamad Jamel Basha
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Mohd Hafif Basha Mohamad Jamel Basha
Official Name
Mohd Hafif Basha , Mohamad Jamel Basha
Alternative Name
Basha, M. H.
Mohamad Jamel Basha, Mohd Hafif Basha
Main Affiliation
Scopus Author ID
57192108115
Researcher ID
EKH-9088-2022

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Finite element prediction on the chassis design of UniART4 racing car

2017-09-26 , Zaman Z , Khairul Salleh Basaruddin , Mohd Hafif Basha Mohamad Jamel Basha , Md Taufiqur Rahman Sarkar , Ruslizam Daud

This paper presents the analysis and evaluation of the chassis design for University Automotive Racing Team No. 4 (UniART4) car based on finite element analysis. The existing UniART4 car chassis was measured and modelled geometrically using Solidwork before analysed in FEA software (ANSYS). Four types of static structural analysis were used to predict the chassis design capability under four different loading conditions; vertical bending, lateral bending, lateral torsion and horizontal lozenging. The results showed the chassis subjected to the highest stress and strain under horizontal lozenging, whereas the minimum stress and strain response was obtained under lateral bending. The present analysis result could provide valuable information in predicting the sustainability of the current UniART car chassis design.

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Study of intake manifold for Universiti Malaysia Perlis automotive racing team formula student race car

2017-10-29 , Norizan A. , Md. Tasyrif bin Abdul Rahman , Nasrul Amri Mohd Amin , Mohd Hafif Basha Mohamad Jamel Basha , Ismail M.H.N. , Azarul Fahmin Ab Hamid

This paper describes the design differences between the intake manifold and restrictor used in racing cars that participate in the Formula Student (FSAE) competition. To fulfil the criteria of rules and regulation of the race, each race car must have a restriction device that has a maximum diameter of 20 mm installed between the throttle body and intake manifold. To overcome these problems, a restrictor has been designed and analysed using the steady state analysis, to reduce the loss of pressure in the restrictor. Design of the restrictor has a fixed parameter of the maximum diameter of 20mm. There are some differences that have been taken to make the comparison between the design of the restrictor, the diameter of the inlet and outlet, the curvature of the surface, convergence and divergence angle and length of the restrictor. Intake manifold was designed based on the design of the chassis, which shall not exceed the envelope defined by the FSAE competition. A good intake manifold design will affect the performance of the engine. Each design have made an analysis designed to ensure that each cylinder engine gets its air evenly. To verify the design, steady state analysis was made for a total mass flow rate and the velocity of air leaving a runner in each engine. Data such as the engine MAP reading was recorded by using Haltech ECU Management Software as reference purposes.

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Effect of Image Thresholding on the Homogenized Properties of Trabecular Bone Model

2022-01-01 , Khairul Salleh Basaruddin , Haniza Yazid , Muhammad Juhairi Aziz Safar , Mohd Hafif Basha Mohamad Jamel Basha , Fathinul Syahir Ahmad Sa'ad , Muhamad Khairul Ali Hassan

This paper presents a numerical study to determine the homogenized (apparent) properties of vertebral trabecular bone with different threshold values using homogenization method. Series set of micro-CT images of vertebral trabecular bone was used in the present digital image-based modeling technique to reconstruct the microstructure model. Three image thresholding values were selected based on Otsu’s method. The homogenized properties that include the Young’s moduli, Poisson’s ratio and shear moduli was obtained in this study. The results showed there is significant effect of image threshold on the homogenized properties of vertebral trabecular bone model.

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Effect of various bending angles on a passive light pipe for eco-daylighting systems

2017-10-29 , Ng Y. F. , Mohd Sani Mohamad Hashim , Din M.A.Z. , Nasrul Amri Mohd Amin , Nur Saifullah Kamarrudin , Mohd Hafif Basha Mohamad Jamel Basha , Md. Tasyrif bin Abdul Rahman

Daylighting systems is one of alternative to reduce a high energy consumption that caused by artificial lighting. However the use of passive light pipes in daylighting systems with various bending angles may affect the efficiency of light transfer from the sunlight to the room. Thus this paper is proposed to study the effect of various bending angles on a light pipe. Three bending angles of light pipe, which are 0°, 30° and 45°, were analyzed through the experimental works. A test bed room was constructed in order to simulate daylighting in a room. The results were then visualized in graphs based on the efficiency by considering the maximum average internal illuminance achieved by each light pipe. From the results, it shows that when the bending angle increases, the average internal illuminance decreases. And the highest average internal illuminance was achieved by 0° light pipe.

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Efficiency analysis of a passive daylighting system based on Northern Malaysia’s climate

2025-04 , Mohd Sani Mohamad Hashim , Muhammad Amin Zulkifli Din , Abdul Halim Ismail , Mohd Hafif Basha Mohamad Jamel Basha , Nasrul Amri Mohd Amin , Ng Yi Fei , Muhamad Safwan Muhamad Azmi , Siti Marhainis Othman , Nur Saifullah Kamarrudin

Daylighting design strategy is important in order to have adequate lighting source in a room and necessary to decrease energy consumption for artificial lighting. Passive daylighting system utilizes daylight by collecting, reflecting and diffusing the natural light throughout a given area. The purpose for this study is to monitor, compare and analyse an optimum light pipe system design that can scatter daylight into a room based on three case studies. Lighting analysis was conducted using Autodesk 3ds Max Design software throughout the project based on the actual geographical parameters of Universiti Malaysia Perlis, Malaysia and also using the real sun azimuth on working hours. The results were compared according to the respective designs in order to observe the maximum internal illuminance and the average internal illuminance. The results show that the straight geometry with low aspect ratio produces the highest interior light intensity among other light pipe systems and the average internal illuminance values in the room was able to reach the minimum requirement of a small room which is 200 – 500 lux.

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Design optimization of rear uprights for UniMAP Automotive Racing Team Formula SAE racing car

2017-10-29 , Azmeer M. , Mohd Hafif Basha Mohamad Jamel Basha , Hamid M.F. , Md. Tasyrif bin Abdul Rahman , Mohd Sani Mohamad Hashim

In an automobile, the rear upright are used to provide a physical mounting and links the suspension arms to the hub and wheel assembly. In this work, static structural and shape optimization analysis for rear upright for UniMAP's Formula SAE racing car had been done using ANSYS software with the objective to reduce weight while maintaining the structural strength of the vehicle upright. During the shape optimization process, the component undergoes 25%, 50% and 75 % weight reduction in order to find the best optimal shape of the upright. The final design of the upright is developed considering the weight reduction, structural integrity and the manufacturability. The final design achieved 21 % weight reduction and is able to withstand several loads.

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Co-gasification of palm kernel shell and polystyrene plastic: Effect of different operating conditions

2020-06-01 , Mohd Hafif Basha Mohamad Jamel Basha , Sulaiman S.A. , Uemura Y.

Palm kernel shell (PKS) biomass has great potential for power generation via gasification as it contains high energy content. However, abundant it may be, the source of PKS is scattered throughout the country, thus the consistency of feedstock supply may be hard to maintain. Co-gasifying with another source, such as plastics, can be seen as one of a solution to mitigate the supply chain problem. Polystyrene (PS) plastics have potential as a plastic feedstock because of its high domestic and industrial usage. As PS is also hard to recycle, using PS as a co feedstock for gasification is a way for PS waste management. However, the study on the performance of air co-gasification of PKS and PS has not been done before. It is essential to investigate the performance before it is utilized in the real world. In this work, the performance co-gasification of PKS and PS with different operating conditions was investigated. The gasification experiment was done in an electrically heated downdraft gasifier with a diameter of 8 cm. The reaction temperature was varied from 700 to 900 °C, with the equivalence ratio varied from 0.07 to 0.27. The PS weight percentage of the total feedstock was varied from 0 to 30 wt%. It was found that the vol% of CO and H2 on the producer gas increased with temperature while reducing the vol% of CO2 and CH4. HHV and the amount of gas produced were also increasing with increasing temperature. Increasing ER reduced the HHV of the gas but increased the amount of gas produced. Adding more PS to the feedstock blend increased the percentage of the produced gas at 900 °C, however, at the lower temperature of 800 °C, the percentage of gas produced decreased with increasing PS wt%.

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Aerodynamics analysis of UniMAP automotive racing team formula SAE race car spoiler via simulation: Effect of angle of attack

2021-10-25 , Wafi A. , Mohd Hafif Basha Mohamad Jamel Basha , Tasyrif M. , Hamid M.F.

When a racing car moves at high velocity, aerodynamic factors will cause a lift and drag force, causing the speeding vehicle to lose stability, traction and speed. To solve this problem, racing cars use a rear spoiler as a medium to reduce drag and lift, increasing the car’s stability. This study explores the idea that focuses on the impact of the angle of attack on UniART SAE race car performance and the effect of angle of attack on drag force and downforce. ANSYS Fluent is used to generate the simulation In the context of the lift force analysis, angle of attack equal to 12.5° produce the most outstanding results and generated the highest negative lift force value between three tested angles. The highest negative lift force generated is 35.658 N at the inlet velocity of 105 km/h. Furthermore, by referring to drag force analysis, it shows an increasing trend when the variable angle of attack parameter is changed to a higher value. Angle 25° produced the highest drag force data which is 60N and the inlet velocity condition is set equal to 105 km/h.

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Air co-gasification of palm kernel shell and polystyrene: Effect of different polystyrene content

2020-06-12 , Mohd Hafif Basha Mohamad Jamel Basha , Sulaiman S.A.

Plastic waste management has been a problem as most of the plastics are not biodegradable. Although plastics are recyclable, only 21% of total plastic wastes are recycled. Using plastics as gasification feedstock/co-feedstock and converting it to usable energy is one of the solutions of removing plastics waste. Co-gasifying polystyrene (PS) with palm kernel shell (PKS) is promising as both of the feedstocks are abundant and have high energy content. However, the performance of air gasification of PKS and PS has not been studied previously. In this work, co-gasification of PKS and PS was carried out, focusing on the effect of PS content in the feedstock. The PS content was varied from 0 to 30 wt%. By increasing the PS content, the CH4 volume percentage increases, while CO and H2 volume percentage decreases. The high heating value of the producer gas increases with PS content, from 11.95 MJ/Nm3 at 10 wt% PS, to 12.36 MJ/Nm3 at 30 wt% PS. Higher PS content also increases the gas yield percentage.

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Design and static structural analysis of a race car chassis for Formula Society of Automotive Engineers (FSAE) event

2017-10-29 , M. L. Mohamad , Md. Tasyrif bin Abdul Rahman , Shah Fenner Khan Mohamad Khan , Mohd Hafif Basha Mohamad Jamel Basha , Abdul Hamid Adom , Mohd Sani Mohamad Hashim

The main purpose of this study is to make improvement for the UniMAP Automotive Racing Team car chassis which has several problems associated with the chassis must be fixed and some changes are needed to be made in order to perform well. This study involves the process of designing three chassis that are created based on the rules stated by FSAE rules book (2017/2018). The three chassis will undergo analysis test that consists of five tests which are main roll hoop test, front roll hoop test, static shear, side impact, static torsional loading and finally one of them will be selected as the best design in term of Von Mises Stress and torsional displacement. From the results obtained, the new selected chassis design which also declared as the new improved design poses the weight of 27.66 kg which was decreased by 16.7% from the existing chassis (32.77 kg). The torsional rigidity of the improved chassis increased by 37.74%.

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