Now showing 1 - 10 of 33
  • Publication
    Design for Manufacturing and Assembly (DFMA): Redesign of Joystick
    ( 2020-07-09)
    Nasyitah Mohammad N.
    ;
    ;
    Fadzly M.K.
    ;
    Syaiyidah Mohamad Salikan N.
    ;
    Design is the first step in any manufacturing process where the most crucial decisions are made which affect the product's ultimate cost. The researchers used DFMA method in this study to redesign and improve a joystick in order to achieve the goal to decrease the number of parts, handling and insertion time, and improve the design efficiency for a joystick. The main emphasis in this research has been on the design stage of a product development, with a view to accomplishing an optimal design approach for current product.DFMA principles have been used to develop new design ideas and the final design will be evaluate and compared to the current design. In result, the assembly time for redesign then increased by 21 % with a decrease in the assembly time from 294.2s to 232.44s and an improvement in design efficiency by 26.5 % from 20.4 % to 25.8 %.
  • Publication
    Redesign of bahulu production layout to improve the efficiency of process flow
    This research presents the optimum efficiency improvement of process flow by redesigned the production layout using facility planning methods in a company producing traditional cakes which are bahulu that currently have bottleneck issue, inefficient flow and unnecessary excess movement between activities. The objectives of this study to improve the current plant layout by redesigned it with increasing the production efficiency and productivity of the company. To achieve this aim, there are several layouts generated using Systematic Layout Planning (SLP) and Graph-Based Theory (GBT) and the Efficiency Rate (ER) of each layout was calculated. The layout with the highest rate was then selected and validated by using WITNESS software. The result showed that the ER of the selected layout improved from 74.49% to 93.40% and also increased the productivity and reduced the processing time up to 10%. The described case study will show how the efficiency and productivity of a real manufacturing system can be improved by redesign layout.
  • Publication
    Analysis particle trajectory and air flow on hopper for swiftlet feeding machine using computational fluid dynamics (CFD)
    Currently, the bird house entrepreneur feeds the bird manually, and there is the opportunity to develop the feeding machine for swiftlets with good efficiency. This research is focused on analyzing the flow of the particle for the mechanism of the machine. The methodology of this project includes the collection of data, brainstorming and interprets data, design concept, analysis, fabrication, and testing. The design of the automatic swiftlets feeding machine is using Solidworks software. With this software, the structure can be analyzed to Finite Element Analysis (FEA) directly. The flow of the air from the blower that acts as the mechanism in this machine can be analyzed by using the Computational Fluid Dynamis (CFD) simulation. The result of the analysis is shown in the form of the finite element analysis, particle trajectory of food, and the air flow from the blower.
  • Publication
    DFMA method: Analysis on a mechanical sharpener
    Creativity and innovation in any organization are vital to its successful performance. Innovate a product have to consists of many different process of design. The flow of design such as identifying the problem of the product, determining the objective of the research, identifying the customer needs, undergoing survey and analysis data to get the list of metrics. Besides that, house of quality and concept generation will help the research to get know whether the design is full fill the customer needs or not. Concept testing will help to identify the final concept selection. Modelling of the final concept can help to show the target marketing to give their own response on this research. Customer needs can help to make the product undergo further improvement.
      2  24
  • Publication
    Analysis in redesigning of portable bluetooth speaker
    ( 2021-07-21) ; ; ;
    Ahmad S.A.S.
    ;
    Siti Nadzirah Rosley
    ;
    Yusra Nadzirah Ramli
    ;
    Muhammad Faiz Abd Razak
    ;
    Nurin Zhafarina Ahamad
    This paper focus on optimization of assembly process using DFMA on portable bluetooth speaker. However, the problem regarding this speaker is it comes with box shaped that is outdate and bulky. It also does not resistant to water as it limited to dry places only. The objectives of this paper are to redesign a much compact and sleek looking portable bluetooth speaker that meets the needs of the music lovers and to assure the speaker to be water resistant. The design of portable bluetooth speaker is using CAD software and then transfer to Finite Element Analysis (FEA) to analyses the capabilities of part design. At the end of this paper, this research will give understanding about design using CAD software and do analysis that improved the portable bluetooth speaker. Hence, Sonic Gear Pandora Mini Portable Bluetooth Speaker in grey colour was chosen as a benchmark in this paper.
      5  10
  • Publication
    Sejarah apresiasi : seni lukis dan seni reka
    Buku sejarah dan apresiasi seni lukis dan seni reka ini menjelaskan tentang definisi seni dan nilai estetika daripada beberapa ahli falsafah dan seni, termasuklah penjelasan tentang kepentingan seni dalam kehidupan seharian. Keupayaan untuk menilai dan menganalisa hasil seni amatlah penting. Buku ini memberi penjelasan dan gambaran berkaitan prinsip-prinsip dan elemen-elemen rekaan serta bagaimana seseorang itu dapat membuat penilaian dan menganalisa sesebuah karya seni atau rekaan. Sehubungan dengan itu, terdapat bab yang berkaitan dengan sejarah perkembangan seni dan ianya diterangkan mengikut kronologi bermula dari zaman pra sejarah sehingga ke zaman moden termasuk asapek-aspek dan perkara yang mempengaruhi penghasialn sesebuah karya seni. Buku ini juga memuatkan dan memaparkan bnayak gambar hasil seni dan illustrasi mengikut gaya dan era yang berkaitan agar pembaca lebih mudah memahami serta dapat mengahyati hasil seni dan reka bentuk berkaitan.
      2  765
  • Publication
    Ergonomic study of X-L wheelchair
    Wheelchairs have been used widely as the one of the vehicles that are designated purposely to help the disabled patient to easily move around. However, the standard wheelchairs currently available in the market are mostly fit to patients which have average size and can only accommodate the patient with maximum body mass up to 100kg. When a big size or extra-large (XL) patient with body mass more than 100 kg uses this standard wheelchair, they may feel discomfort, cramped as well as restricted movement. Furthermore, the structure of standard wheelchairs may not be safe enough to hold the load of big size patient weight. Therefore, this project is focused to study the appropriate an ergonomic body sizes and dimensions of big patients that body mass ranging from minimum 100kg to maximum 150kg. The investigation is focused on the customer needs as well as anthropometry body measurements. The data was collected from the questionnaires and direct interview among 30 personnel with the body mass in target range. The information gathered then had been used to custom design the XL wheelchair that fulfil the most requirements and having sturdy structure that safety to be used.
      2
  • Publication
    Design and development of fire escape window grille keyless locking system
    The most fire-related fatalities are due to the smoke inhalation of the toxic gases. It is related to the victims being trapped in the building when the building was on fire. It was also reported that major deaths from fire related are from the toxic gases inhalation produced by the fire while the deaths due to fire flames and burning was about one third of the total deaths. The access to the exit door was blocked and they could not exit through the window due to the permanent grille installation. It was well aware that most Malaysian homeowners installed grilles on their house windows or doors for security reason since there are lots of break-ins incidences. To overcome the issue, this work introduces a window grille with keyless locking system. The design incorporated keyless system that can be operated or opened without a key. Several designs for implementing this solution have been described. These designs are divided into three sections, which is a grille design, expansion designs which use to accommodate a wide range of window-sized and keyless locking systems. The size and type of grille suitable for Malaysian residents as well as the more efficient keyless locking system has been studied in detail using the method of case study and survey method. Step of patent research, market analysis and benchmarking are used as methods for collecting reference data. The most effective fire escape window grille keyless locking system has been studied and designed from this project. An important factor in designing a fire window grille is the design that can be opened and does not require a key operation. The results of the design and analysis tested are presented such that they can be used as an aid to the design of fire escape features.
      2  20
  • Publication
    Design and Development of Pneumatic Air Engine using Linear Actuator
    ( 2020-07-09)
    Fadzly M.K.
    ;
    Maizaty R.
    ;
    ; ;
    Amarul T.
    A study was performed to produce a pneumatic air engine using two linear actuators and then the linear motion was converted to a rotating motion using a crank shaft. This study aims to increase the use of linear actuators in pneumatic air engines as well as to apply pressurized air as an efficient and convenient transportation mechanism in line with the development of technologies developed through products available in the market. Two units of linear actuator such as pneumatic cylinders with two units of 5/2 way directional control valve with double solenoid actuation are used to control the cylinder movement. The cylinder will rotate the crank shaft when receiving a signal from the solenoid valve with 5 bar air pressure. In conclusion, the system can travel up to 153 meters for a 24-liter air-pressure with 5 bar pressure when the test is run for a charging cycle by the compressor motor. If the compressor motor able to charge the compressor continuously, the movement distance can be increased.
      3  17
  • Publication
    Survey on customer needs of wheelchair design for big size patient
    This paper presents a survey on customer needs on wheelchair design for big size patient weight maximum up to 150kg. As more patients who are overweight are admitted to hospitals, critical care nursing care become more important. In order to design new type of wheelchair for big size patient, customer's needs requirements are very important in early development process. It firmly identified with idea age, idea choice, aggressive benchmarking and foundation of item determinations. The data obtained from this survey is very useful for designer in designing of new type wheelchair for big size patient, which currently not available or very difficult to find in the market.
      1  19