Design and Development of Automatic Tyre Pressure Controller

Automobile tyre pressure seldom considered as important aspect in ensuring user safety, economical driving and maintenance cost reduction. The research shows that properly inflated tyres can safe tyre life up to 20% which is nine months more of its life span. It can also save fuel from 4% to 10%, increase braking efficiency up to 20%, lightens steering system and ease self steer. Therefore, Automatic Tyre Pressure Controller (ATPC) has been idealized and invented to ensure correct pressure is inflated into the tyre regardless of the setting on the pressure source: e.g. kiosk, compressor, foot inflator, etc. The device will alert the user upon reaching the appropriate pressure by a hissing sound. This product has won few medals at international invention and innovative competitions for its novelty and practicality

Institutional quality as a determinant for FDI Inflows: Evidence from ASEAN

Since the 1980s ASEAN has become an important avenue for FDI from the rest of the world.However, as the importance of FDI as a new source of economic growth engine has been recognized by many, especially other developing countries, other parts of the world are also becoming interested in attracting FDI to their countries.With the current intense competition in attracting FDI, inevitably, ASEAN has to create a better and more conducive business environment to enable it to retain the existing inflows as well as attract others to invest in Malaysia.One avenue that has not been intensively touched so far concerns the role of institutional quality in explaining the behavior of FDI inflows into ASEAN.The result of the analysis reveals the important and significant role of institutional quality in attracting FDI inflows into ASEAN

Design and Simulation on Compressor Metal Matrix Composite by Investment Casting

Compressor is a part of turbocharger approaches that utilize the exhaust gas of an automobile to drive the compression device. The purpose of turbocharging is to increase the intake pressure and the amount of air into the combustion chamber to improve the efficiency of the engine. Compressor impeller determines the service life of the turbocharger. This paper proposes the new methodology of producing the compressor impeller using Metal Matrix Composite (MMC) material by investment casting. In general, this study presents the tasks pertaining to metal matrix composites and their interactions in designing of compressor impeller. This study presents the use of genetic algorithm (GA) and computer programs for designing a new compressor and determined the wax pattern dimensions based on three-dimensional finite-element simulations as a preliminary study by using investment casting method. The model of thermal and mechanical analysis was developed by ANSYS. As the results, the simulation model was generated and it could be used for improving the design of turbine-compressor assembly through the bottom geometry changes of the compressor

Development of conceptual design of car housing side mirror using intergrated approach

This paper presents the development of automotive car housing side mirror using integrated approach. The car housing side mirror was chosen to illustrate the application of integrated approach. Various product development stages were conducted which initially from market investigation to concept development stage. Conceptual design stage is a main design stage which is analytical hierarchy process (AHP) was selected as a decision making method to determine the most appropriate design concept. Finite Element Analysis (FEA) was employed to analysis design based on static analysis for determining the strength and performance of the design. The result shows design concept 3 (DC-3) is the preferred choice since it has the highest value among the five alternatives with a value of 0.4701 (47%)

Design and Simulation on Cast metal Matrix Composite by Investment Casting

Metal Matrix Composite (MMC) is produced normally by melting the matrix material in a vessel and the molten metal is stirred systematically to form a vortex, and then the reinforcement particles are introduced through the side of vortex formed. However, this approach has disadvantages, mainly arising from the particle addition and the stirring method. There is certainly local solidification of the melt induced by the particles during particle addition. This condition increases the viscosity of the slurry and appears as air pockets between the particles. Moreover, the rate of particle addition needs to be slowed down particularly when the volume fraction of the particles to used increases. This study proposes the new methodology of producing cast MMC by investment casting. Deformations of the die-wax and shell alloy systems are considered in a coupled manner, but the coupled deformation of the wax-shell system is not included. Therefore, this study presents the tasks pertaining to metal matrix composites and their interactions. As a result, the work on wax and wax-die interactions is discussed. This study presents the use of computer programs for determining the wax pattern dimensions based on three-dimensional finite-element simulations. The model for coupled thermal and mechanical analysis is developed by ProCAST. The wax model is described. The following factors are considered in the analysis: (1) the restraint due to geometrical features in the metal die; and (2) process parameters such as dwell time, die/platen temperature, injection pressure, and injection temperature

Design of Jigs and Fixtures for Hydraulic Press Machine

This paper presents the design of jigs and fixtures for hydraulic press machine in manufacturing industries. The current problem in industry is facing the utilization of hydraulic press machine when the demand has increased which occurs on the gripping or holding the workpiece securely. The main objective of this study is to propose a new design of jigs and fixtures for hydraulic press to carry out the gripping problem from existing design. Several design concepts were generated and simulated to analyze using ANSYS software. The design parameters such as maximum deformation, maximum shear stress, number of contact faces, and maximum holding force were presented. Based on the simulation result, the improvement of new jigs and fixtures design for hydraulic press machine was achieved

Design and simulation on cast metal matrix composite by investment casting

Metal Matrix Composite (MMC) is produced normally by melting the matrix material in a vessel and the molten metal is stirred systematically to form a vortex, and then the reinforcement particles are introduced through the side of vortex formed. However, this approach has disadvantages, mainly arising from the particle addition and the stirring method. There is certainly local solidification of the melt induced by the particles during particle addition. This condition increases the viscosity of the slurry and appears as air pockets between the particles. Moreover, the rate of particle addition needs to be slowed down particularly when the volume fraction of the particles to used increases. This study proposes the new methodology of producing cast MMC by investment casting. Deformations of the die-wax and shell alloy systems are considered in a coupled manner, but the coupled deformation of the wax-shell system is not included. Therefore, this study presents the tasks pertaining to metal matrix composites and their interactions. As a result, the work on wax and wax-die interactions is discussed. This study presents the use of computer programs for determining the wax pattern dimensions based on three-dimensional finite-element simulations. The model for coupled thermal and mechanical analysis is developed by ProCAST. The wax model is described. The following factors are considered in the analysis: (1) the restraint due to geometrical features in the metal die; and (2) process parameters such as dwell time, die/platen temperature, injection pressure, and injection temperature

Ionospheric residual analysis for network-RTK in low-latitude area: towards solar cycle 24

Network-RTK positioning technique has been proven efficient to ameliorate a significant portion of spatially correlated errors over its coverage. Amongst them, the dispersive effect of ionosphere, which exhibits dynamic spatial and temporal variations, remains the largest error contributor in GPS positioning. Dispersive network residuals are expected to increase towards Solar Cycle 24. Investigation in ISKANDARnet found that the behaviour of equatorial ionospheric residuals reveals noticeable correlation with geomagnetic storm outburst

Design and simulation on compressor metal matrix composite by investment casting

Compressor is a part of turbocharger approaches that utilize the exhaust gas of an automobile to drive the compression device. The purpose of turbocharging is to increase the intake pressure and the amount of air into the combustion chamber to improve the efficiency of the engine. Compressor impeller determines the service life of the turbocharger. This paper proposes the new methodology of producing the compressor impeller using Metal Matrix Composite (MMC) material by investment casting. In general, this study presents the tasks pertaining to metal matrix composites and their interactions in designing of compressor impeller. This study presents the use of genetic algorithm (GA) and computer programs for designing a new compressor and determined the wax pattern dimensions based on three-dimensional finite-element simulations as a preliminary study by using investment casting method. The model of thermal and mechanical analysis was developed by ANSYS. As the results, the simulation model was generated and it could be used for improving the design of turbine-compressor assembly through the bottom geometry changes of the compressor

Modeling of the communication link for data correction in network-rtk

The current communication in several network-RTK systems is frame relay technology that applied packet switching network (leased line) based on IPVPN which services data transmission between reference stations to control station. The most significant shortcoming of frame relay technology is depend on cabling networks and bandwidth limitation that is not effective for the rural or suburban area. In other hand the channel speed of frame relay is relative small for data transmission. This limitation has an effect on bandwidth, cost and time delay of the data transmission. In this paper we propose the system model of the 3G technology that is capable to overcome cabling dependency due to complicated installation, cost and time delay due to low data rate that will be applied for Network-RTK system in Metro-Area of Iskandar Malaysia. 3G technologies offer users a wider range of more advanced services while achieving greater network capacity through improved spectral efficiency. Services include widearea wireless voice telephony, video calls, and broadband wireless data, all in a mobile environment. It can be expected by applying of 3G technology in network-RTK, the performance system of real time data transmission are improved in bandwidth capacity, channel speed and diminish the expenditure of cablinginstallation