Papers by Keyword: Prototype

Abstract: Photovoltaic solar energy is an abundant, renewable, and clean source of energy that can contribute to the energy transition. However, traditional land-based solar installation have limitations in terms of space, efficiency, and environmental impact. Floating solar panels have emerged as a promising technology that can overcome these limitations and provide a range of benefits. This work describes the design and experimental testing of a small-scale of floating photovoltaic module prototype, with a focus on the effect of solar irradiation on its maximum power output. The prototype is composed of a 4Wp photovoltaic module and a buoyant supporting structure. Using Matlab®, simulations were performed on the floating photovoltaic module under varying environmental conditions, including solar irradiance, temperature, and wind speed. The prototype demonstrated an electrical performance of 3.62W under solar irradiation of 895W/m² and a temperature of 41°C, with a power ratio exceeding 97% of this maximum power under standard conditions. The prototype also showed a positive energy gain when compared to the same photovoltaic module in a horizontal or inclined position, particularly at high temperature and solar irradiance. Moreover, shows a stability and resistance in harsh weather conditions. The mathematical fitting with a Gaussian distribution shows the rapid increase of the maximum power of the floating photovoltaic module in the range of 37°C to 42°C of temperature with increasing solar irradiance.

Abstract: This paper deals with mechanical design and material selection process for experimental milling device used in mechanochemistry. Part of this process is right optimizing shapes and dimensions with used material and manufacturing process. Our selection and design process were considering stress on individual parts, purpose of parts, future upgradability, material cost and manufacturing cost. All these factors were resulting into high usage of materials like PLA (polylactic acid) and alloys based on aluminium. These materials are generally very good for prototyping thanks to their mechanical properties and cost. For parts with high stress expectation we therefore used more durable materials. In the end we describe disadvantages of PLA materials against metals in production.

Abstract: Utilizing para wood ash can offer an alternative method of adding value to agricultural wastes and help to conserve the environment. The feasibility of using para rubber leaves as an environmentally friendly material for prototype lightweight flat sheet production was investigated. Properties of lightweight flat sheet made from different proportions of para rubber leaves mixed with para wood ash were compared with ordinary Portland cement (OPC). Morphology and element compositions of untreated and treated para rubber leaves with 20% NaOH solution were observed using a field emission scanning electron microscope (FE-SEM) with energy dispersive X-ray spectroscopy (EDS). Results showed that untreated para rubber leaves consisted mainly of the elements carbon (C) and oxygen (O), accounting for 80.35% and 17.55% by weight, respectively, with minor amounts of other elements. Treated para rubber leaves consisted mainly of C, O, and calcium (Ca) at 69.53%, 28.55%, and 1.25% by weight, respectively. Bulk density and compressive strength of the control cement paste were 1.85 g/cm³ and 47.78 MPa, respectively at 28 days curing. The compressive strength of the cement composite decreased with an increase in the para rubber leaves volume fraction.

Abstract: Stroke is the third largest cause of death in Malaysia. Different approaches including hardware development and simulation were conducted to support the conventional rehabilitation courses. New upper limb rehabilitation robot prototype was developed for this research. The prototype consists of horizontal and vertical movement exercise. The prototype was modeled and simulated using ergonomics optimization software known as AnyBody. This paper presents the analysis of human upper limb muscles during rehabilitation exercise using virtual human model. The result shows that eleven muscle areas were affected during the rehabilitation exercise using new prototype.

Abstract: The rising demand for high quality castings necessitates that vast amount of manufacturing knowledge be incorporated in manufacturing system like computer aided design and manufacturing. Rotary furnace fabrication involves several critical parameters like, capacity of furnace, flame length, length of furnace due to the available installation space and determination of type and thickness of materials needed. A complex relationship exists between these fabrication parameters and hence there is a need to develop models which can capture this complex interrelationship and enable fast computation. In this project a computer model is designed and run, taking a 5kg rotary furnace calculated parameters as prototype to facilitate the production of a rotary furnace, using Microsoft visual basic language embedded with the necessary and required design and analysis formulae needed to fabricate different sizes of rotary furnaces.

Abstract: The article presents a development system for industrial vision applications based on multimedia processors. For simulation of the algorithm and prototyping the application we can use either standard Matlab / Simulink environment or specialized environments such as Open eVision. The system components are presented with examples of application prototyping and implementation on standard platform Digital Video Development Platform DVDP6437 from Spectrum Digital, equipped with Texas Instruments TMS320DM6437. In the presented system we did experiments regarding the Rapid Prototyping concept in industrial vision application, starting from Embedded Target Library components from Matlab / Simulink. The experiments revealed that multimedia processors are usable both in video and still image processing and are possible to be considered an option in standard industrial vision applications: positioning, visual inspection. The paper contains also a brief study of the necessary components of a proposed embedded architecture, intended to be realized for evaluation of the technology in industrial environments.

Abstract: At present, the development of techniques and technology can’t do without innovations in production. This explains the desire of mankind to look for innovative ways to produce different types of products. One of these systems is the production method of selective laser sintering. It is more promising as compared to other rapid prototyping techniques, due to the relative cheapness of materials and time-consuming to produce finished products. This article discusses the method of selective laser sintering, its advantages and disadvantages.

Abstract: Machining can be performed on virtually all solid materials even though the term commonly applies to the cutting of metals, alloys, plastics and woods. Machining is a mechanical process where excess material from a work piece can be removed by cutting action to produce a part of specified geometrical shape and surface finish. In this research we will analyze and investigate whether there is a possibility to use the palm oil based bio wax material for machining applications. At the moment different ferrous, non-ferrous materials and industrial blue wax have been used for prototype models, training purpose by different industries, educational and training organizations. However the price of such material is very expensive. Hence an attempt is made to substitute these material by the palm oil based bio wax produced in Malaysia. With it, engineers can generate prototype to evaluate even minor design changes without breaking the budget. To the best of researcher’s knowledge, no previous work has been carried out nationally or worldwide on the use of palm oil based bio wax material in the manufacture of a strong industrial wax. This research work gives the approaches taken in this direction.

Abstract: Vibroplatform test is an important means of testing the dynamic characteristics of the laboratory sim-ulating structure under seismic action. For structure whose volume and weight exceed the limits of vibroplatfor-m tests is usually carried out through model test according to the similarity theory. So how to deal with the simil-ar relationships among the test model and how to verify thethe rationality of vibration control strategy through testing results become the key and fundamentalproblems. 1:15 scaled models will be made through the dimensional analysis based on a 4 layersL-shaped frame structure as the proto-type , which are made from micro-concrete, aluminum alloyand plexiglass. SFMT sap2000 is used to make a dynamic analysis to get the values of period,acceleration, velocity, etc. Comparing the results of prototype inferred from model through similarrelationship with theoretica-l values of prototype to get the correct formula and confirm the bestscaled model and then provide references f-or model test later.

Abstract: This paper analyzes the application method of intuitive design. The first part is about the user analysis contains both the collection of unconscious behaviors and relevant Intuitive experiences. The second part especially explains the establishment of prototype and the evaluation of design. The last part discusses the practical design flow of intuitive design.