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Technical Paper

Analysis of pressure variation in wheel with the aid of wheel speed sensor

2019-11-21
2019-28-2450
Objective: The Objective of the research is to detect drop in level of pressure in the wheel with respect to nominal pressure using data obtained from speed sensors. The research discusses the standard procedure of experimentation to obtain data which eventually used to produce results. This procedure is taken from principles Design of Experiments. Statistical tools are used to analyze and give determining factors for pressure variation. Methodology: To study idea, we made use of two-wheeler platform and collected data of wheel speed sensors on both wheels. The idea is when there is any change in tire pressure the radius of the wheel also changes and usually this relation is direct. Hence, change in tire pressure changes the angular velocity of the wheel. In this approach wheel speed sensors are used to measure the angular speed for standard and reduced pressure conditions.
Standard

Primer, Anodic Electrodeposition for Aircraft Applications

2019-10-17
CURRENT
AMS3144A
This specification establishes the requirements for a waterborne, corrosion inhibiting, chemical and solvent resistant, anodic electrodeposition epoxy primer capable of curing at 200 to 210 °F (93 to 99 °C).
Standard

Minimum General Standards for Oxygen Systems

2019-10-16
WIP
AS861C
This standard covers all types of oxygen breathing equipment used in non-military aircraft. It is intended that this standard supplement the requirements of the detail specification or drawings of specific components or assemblies, e.g., regulators, masks, cylinders, etc. Where a conflict exists between this and detail specifications, detail specifications shall take precedence.
Technical Paper

A Study on the Development of an Effective Framework for Implementation and Sustenance of an Obsolescence Material Management System in an Aerospace Supplier Manufacturing Industry Environment

2019-10-11
2019-28-0145
Obsolescence Material management plays an important and vital role in today’s modern Aerospace manufacturing, Aerospace Maintenance, Repair and Overhaul industry as well as Aerospace Distributors. Aerospace vehicles have a considerable longer product life-cycle when compared to any other consumer goods like automobile and electronics industry. With the advent of new, disruptive technologies, many sources and supplies of materials including COTS and Standard catalogue parts, components and goods, which are widely used in an Aerospace manufacturing environment, are diminishing at a considerable rate and thus result in their obsolescence before the end disposal of the product life cycle. It is one of the leading causes to the sale of counterfeit and fraudulent parts and components, which can result in considerable deterioration of Quality and Cost to Customer.
Technical Paper

Aerodynamic Drag Reduction of an Intercity Bus through Surface Modifications - A Numerical Simulation

2019-10-11
2019-28-0045
The maximum power produced by the Engine is utilized in overcoming the Aerodynamic resistance while the remaining has been used to overcome rolling and climbing resistance. Increasing emission and performance demands paves way for advanced technologies to improve fuel efficiency. One such way of increasing the fuel efficiency is to reduce the aerodynamic drag of the vehicle. Buses emerged as the common choice of transport for people in India. By improving the aerodynamic drag of the Buses, the diesel consumption of a vehicle can be reduced by nearly about 10% without any upgradation of the existing engine. Though 60 to 70 % of pressure loads act on the frontal surface area of the buses, the most common techniques of reducing the drag in buses includes streamlining of the surfaces, minimizing underbody losses, reduced frontal area, pressure difference between the front & rear area and minimizing of flow separation & wake regions.
Standard

Fluid, Jet Reference

2019-10-03
WIP
AMS2629F
This specification covers a mixture of liquid hydrocarbons and soluble additives.
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