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Composite materials beneficial for aircraft designers or manufacturers
Composite materials beneficial for aircraft designers or manufacturers
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1. Introduction
The traditional material for aircrafts is aluminium while composite material content has always been less than 20% until the recent years. The latest aircraft models by Airbus and Boeing have composites content of 50% or more. (Mauricuien, n.d.) It has brought about many benefits to the industry but also causes difficulties in maintenance and safety issues. The drive of the material evolution is due the economic factors and higher expectation of society as technology advances. The report includes how the advantages of the composite material make it attractive by helping to solve the issues faced by the industry.
2. Composite Materials
Composite materials are made of at least two materials. They are mixed together to achieve specific structural properties. The individual material does not merge or dissolve completely but act as one. (FAA, n.d.)The early aircrafts used composite material such as fibreglass while the latest aircrafts uses carbon fibre reinforced plastic.
2.1 Advantages
Light Weight
Composite materials are able to provide better strength to weight ratio as compared to the traditional materials such as aluminium. (Ingenia, n.d.) Therefore, it means that composite materials will be able to handle the same amount or more load with lesser weight than metals. The weight of the Boeing 787 and the Airbus 350 which are made of 50% or more composite materials has been reduced by 20%. With the weight reduction, the Boeing 787 and the Airbus 350 respectively will be able to achieve a 20% and 25% improvement in fuel consumption. (Mauricuien, n.d.) These lighter weight and fuel saving aircrafts have also benefited the industry as there has been a change of attitude towards environmental issues. The aviation i...
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...s and companies have been providing training for the maintenance crew so that they are equipped with the necessary skills.
5. Conclusion
Even though introducing composites into aircrafts made the industry face several challenges, the advantages it brought into the industry outweigh the limitations. Innovation can never be perfect on the first try. Thus, it takes time to improve the implementation. While the introduction of composites brought about criticism and doubts, it will definitely become the second aluminium after many years of in-servicing and improvements. Maintenance crews have to constantly update themselves with the latest skills and knowledge to increase the reliability of composite aircraft. When composites become more reliable, the benefits it brought can be further enhanced. Fuel consumption can be even lower and maintenance can be made easier.
GKN Aerospace has been a place of employment for me as an electrician for fifteen years. GKN’s business is in the designing and manufacturing of composite and metallic aero structures. These aero structures are then sold to a wide array of companies. Some of GKN’s customers are Boeing, Lockheed Martin, Airbus and many others. The aero structures are built and designed for use in military and commercial aircraft, aircraft-engines, guided missiles and space vehicles. GKN Aerospace has been in business for over one hundred years. In that time, not only has the process of the manufacturing changed, but also so has the knowledge and attention of the pollution and contaminants that are produced from said manufacturing.
In this paper, I would like to discuss on the video, “21st century jet.” This video is about the launching and testing of the airplane by the Boeing company, 777.The 777 family is designed to fill the size gap between the 767 and 747.The head of the 777 project is Allen Millaley, who promised to do many things which are impossible, produced the plane which is more reliable than any other plane in the aviation history. The first large passenger jet designed completely by computer, the 777 is more complex and innovative than any other airliner ever built.
This article is about an experiment done to try to see if Aluminum can cause resistance in potatoes to a disease. Aluminum is commonly found in arid soils which accounts for 35% of all farmable on earth. The aluminum (specifically Al3+) targets the roots of the plants and causes stunted plant growth and abnormal root formation. THis causes stresses in the plant which could lead to cross resistance. This immunity has led to some plants to develop cross resistance to diseases. THis has happened before in the plant, an example is the fact that ozone induces resistance to the tobacco mosaic virus in tobacco plants. This phenomenon is what is being tested for in potato plants. Potato plants will be subjected to infections from Phytophthora
Following World War II and the jet engine technology that emerged largely toward its end, aerospace engineers knew well that the technology had great potential for use in the commercial aviation industry. The Comet was the first aircraft to utilize jet propulsion; however, its designers failed to consider the metallurgy of the aircraft’s materials under flight conditions or the consequences of their atypical window design. The aircraft was designed by Britain’s De Havilland Aircraft Company and entered service in May 1952. After a year of service, however, the design issues mentioned above resulted in the failure of several Comet aircraft. Extensive evaluations revealed that repeated pressurization stress on the aircraft’s main cabin had caused its structure to fail.
The future of the aerospace industry will involve gradual changes in the near term, with the prospect of more radical shifts in the decades t...
Airlines all around the world have to look into different types of aircrafts that best fit their needs for their passengers and the distance between destinations. Boeing and Airbus, two of the world’s biggest commercial airplane manufactures in the world have been competing to get airlines attention on when they are looking to expand their airplane fleet. This competition has been characterized as a duopoly in the large airliner market since the early nineties has when a series of mergers in the aerospace manufacture industry merged or ceased operation. Today we have to look at both competitors to see who has best airplanes in the jet airliner market. Both Airbus and Boeing have a wide product spectrum ranging between wide and narrow body aircrafts covering many combinations of capacity and range. These two companies compete head to head with similar airplanes and styles. With the upcoming generation of young pilots coming into the aviation industry, the market needs high tech airplanes for airlines to buy to help this new generation move in to place. When airlines are looking at new planes to buy, they need to look at all the different types of planes that covers range and capacity. Airlines have to make a decision on what best fits their needs when deciding between a Boeing aircraft and an Airbus aircraft.
Television has affected every aspect of life in society, radically changing the way individuals live and interact with the world. However, change is not always for the better, especially the influence of television on political campaigns towards presidency. Since the 1960s, presidential elections in the United States were greatly impacted by television, yet the impact has not been positive. Television allowed the public to have more access to information and gained reassurance to which candidate they chose to vote for. However, the media failed to recognize the importance of elections. Candidates became image based rather than issue based using a “celebrity system” to concern the public with subjects regarding debates (Hart and Trice). Due to “hyperfamiliarity” television turned numerous people away from being interested in debates between candidates (Hart and Trice). Although television had the ability to reach a greater number of people than it did before the Nixon/Kennedy debate, it shortened the attention span of the public, which made the overall process of elections unfair, due to the emphasis on image rather than issue.
If we take time and observe our surroundings, we see people are more concerned about the amount of Louis Vuttons or Michael Kors bags does one purchase than being aware of the person well being because this world today is all about objects than people. The author of the case of consumer society has presented the modern society in such a way that if we stop and think and look around how are generation today has become, making our world a world of materialism. According to karl marx, our world today is a world of objects as mentioned in the case that we have started given priotity more to our purchases than to people around us for example in a gathering of teens, half of them you will notice will be on their gadgets rather than communicating with the people around. This materialism according to marx is due to the rise of capitalism, where people are easily manipulated into making choices which benefit the economy and most of the time we do not even realize it. The whole concept of Shopping malls we see nowdays is a tool of manipulation, have been made the place of goods, acitivies and leisure for the consumers that they become entangled in the shadows of the capitalists.People nowdays go to shopping malls , hangout and do some window shopping and come back stating that it was an outing rather than having any interaction with other people , we chose to interaction with objects to fulfil our desire. Even the way producrts are arranged are not coincidental but a technique of manipulation for example if the product is arranged in a attractive way, consumers automatically get attracted to it rather then the product which is arranged in a disorganize way.This proves what Marx says that consumers in the capitalist society donot have any so...
(1) The development of carbon-embedded plastics, otherwise called “composits,” is an important new technology because (2) it holds the key for new aircraft and spacecraft designs. This is so because (3) these composits are not only stronger than steel but lighter than aluminum.
Boeing 787 Dreamliner was first announced to the public in January 2003 with approximated costs of five billion dollars , since the sales of the aircraft were high it was supposed to enter commercial service during 2008 but the building up of aircraft seemed more anticipated than expected , since the management decided to use composite materials as an alternative for traditional metals as composite materials are lighter , stronger , cheaper and also resistance to wild variety of chemical agents including acid rain and salt spray as these are the conditions under which metals suffer , Boeing also shared their views in development of air craft with suppliers which effected in a project significantly more anticipated than expected . More than three years later after the project exceeded the estimated budget at last 787 entered commercial service in September 2011.
The engineering section of aircraft manufacturing is quite old. It is characterized by a few firms that keep Rolls-Royce on its toes in terms of competition, like General Electric. The small number of firms can be justified by the high cost of starting of...
Boeing 787 used two types of interchangeable engines that made 787 a flexible asset that can be moved from one Boeing aircraft to other. This was an attractive offer for both financiers and leasing companies. They were light in weight, less costly and saved fuel as they were made form composite materials. Some attracting features were included such as wider seats, wider aisles, large lavatories, spacious luggage bins, large window for a beautiful view, sky simulated ceiling, noise-reducing chevrons on its engine nacelles and quick and smooth takeoff and landings. They also used non corroding composite to avoid frequent aircraft
Introduction Aviation has a huge environmental impact on the environment and society, the aircraft engines release a noise that affects human life and the particulates and gases that are released from the aircraft engines contribute to climate change and increases the global warming. Despite the emission reductions from cars and more fuel-efficient and less polluting turbofan and turboprop engines, the rapid growth of air transportation in the recent years contributes to an increase in total pollution attributable to aviation. In the European Union, greenhouse gas emissions from aviation increased by 87% between 1990 and 2006. Like any other form of public mass transportation that relies on resources that are extracted from the planet, for e.g. Oil, and the airline cannot be considered sustainable in the long-term. Because of the limited resources in which the Aviation relies, it is more realistic to think about how to improve the sustainability of the air transportation rather than achieving a sustainable development.
Materialism is very complex, and can be defined on a number of different platforms. There is no one definite definition of materialism, meaning there is an ambiguity surrounding the construct of materialism. According to Kasser et al. (2004), consumers develop a materialistic value orientation at times when they experience feelings of insecurity, and from exposure to materialistic models and values. When the psychological needs of individuals are not met, they tend to move toward materialism in order to help them feel better about themselves, and reduce feelings of insecurity and self-doubt through the consumption of materialistic items.
By replacing materials with those of a lower density has also made an important impact on fuel economy. Studies show that making 10% reduction in mass yields 5% improvement in fuel economy. Indeed, the US automakers in the last 25 years have responded to the government regulations Corporate Average Fuel Economy by changing materials to lighter ones like aluminum and plastics. Newer developments using other components like Magnesium, polymer composites, and ceramics also are helping to make further improvements to fuel