Mohd Asrul Md Saad
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Mohd Asrul Md Saad
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Mohd Asrul , Md Saad
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Study on modal and harmonic response analysis by modifying motorcycle chassis using finite element method

2021-10-25 , Wong Y.J. , Mohd Sani Mohamad Hashim , Shahriman Abu Bakar , Anas Abdul Rahman , Aziz I.A. , Mohd Asrul Md Saad , Nasirudin M.A. , Zuradzman Mohamad Razlan , Nur Saifullah Kamarrudin , Ishak Ibrahim , Mohd Khairul Faizi Abd Rahman

Motorcycle chassis is one of the most important structures in the design of a motorcycle. Excessive vibration occurs in chassis is undesirable as it may lead to structural failure and discomfort among riders. This study aims to model the motorcycle chassis and carry out dynamic analysis to understand the behaviour of the chassis under vibration. Modelling of chassis was conducted based on Seri Perlis motorcycle, which is characterised by double cradle frame. In dynamic analysis, the modal and harmonic response analysis were employed in this study of the motorcycle chassis and the material used is low carbon steel. Both modal and harmonic response analysis were conducted using Ansys. The results show natural frequencies for six mode shapes and the steady-state response of the chassis under the engine weight excitation revealed that the deformation under z-axis orientation was more prevalent. From this study, the dynamic behaviour of the chassis was understood and improvement of the chassis can be made in the future.

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Publication

Determination of blind spot zone for motorcycles

2019-12-02 , Mohd Sani Mohamad Hashim , Hamati A.A.A. , Mohd Hafzi M.I. , Shahriman Abu Bakar , Abdul Halim Ismail , Muhamad Safwan Muhamad Azmi , Azizi Harun , Zuradzman Mohamad Razlan , Nur Saifullah Kamarrudin , Ishak Ibrahim , Mohd Khairul Faizi Abd Rahman , Mohd Asrul Md Saad , Mohd Afendi Rojan

The problem of the blind spot zone (BSZ) for motorcycles is common, as it causes many accidents that occur between motorcycles and cars, or motorcycles with other vehicles. The problem of BSZ is occurring for many reasons, such as if the motorcyclist wants to change the lane or manoeuvre or turn without realizing the presence of other vehicle which may cause a terrible collision and leads to casualties, either because of darkness, the full dependence on side mirrors that give a limited scope of vision, or due to a malfunction in the front lights of the car that prevented the motorcyclists from recognizing it. However there were limited research on identifation of BSZ for motorcycle, even though most vehicle accidents in Malaysia involved motorcycles. This paper discusses the initial works on the identification of BSZ for motorcyles. Three types of motorcycles were used to determine the BSZ using grid-based technique. From the data collected, the BSZ was identified for the motorcycles.

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