Product lifecycle management in aviation maintenance

Product lifecycle management in aviation maintenance A study on the article entitled Product Lifecycle Management in Aviation Maintenance, Repair and Overhaul. This paper analyses the journal based on inputs which is covered in the course Product Design and Development. Further, it explains briefly about Product Lifecycle Management (PLM) and the different phases of PLM over new product development process and also the benefits of PLM over Aviation Maintenance, Repair and Overhaul (MRO) industry. Product Data Management (PDM) application in PLM are also discussed in this paper. Summary of the article The journal has three phases of discussion, first phase is introduction, second phase is the about the activity of PLM and the final phase is about PLM benefits in aviation MRO industry. Phase 1: The competition among the world in new product development leads to data sharing among the enterprise and end users i.e. from ideas, design, manufacturing, customer/installation, service etc. to overcome this PLM is proposed to have proper integration of customer, process, management and data to have control throughout the life cycle period of the product. Nowadays most of the industries have adopted PLM in their design process to the maximum extent when compared to the other process in their product life time. Similarly in Aviation MRO industry, PLM has not yet adapted to the extreme end compare to the design process in the aviation industry. The PLM in aviation MRO industry can be more worthy as the total life period for an aircraft is approximately more over than 30 years. Phase 2: PLM has been divided in to two management phases as shown in figure 1. One is related to enterprise and other is related to product data (virtual enterprise). This article focus on the second phase which integrates computer aided design and manufacturing through PDM. Product Data Management (PDM) system is the division of PLM, which communicate and gather the data from the initial process of concept development to the end life of the product. PDM system organizes the computer aided design tools. PDM archives the customer feedback, engineering data and management data to incorporate the information between the enterprise, customer, service industry and other end user of the product throughout its life time. Second phase of PLM is further divided into four phases. First phase is concept development in which the ideas from customer are organized and designed. Second phase is design. This concentrates on describing, defining, developing the product design based on first phase and finally analyzing and simulation is carried out in design phase. The third phase is manufacturing and marketing where the production, sales and installation process are carried on to produce a new product. The final phase is servicing where maintain and support, removal or disposal i.e. customer support by means of MRO. Figure 1: Different Phases of PLM In general PLM reduce marketing time, improve the product quality in new product as well as in service, centralized product record, cost and waste reduction. Many industries have applied PLM as an initiative and are mostly used in design process. According to a survey detailed in the article, it shows that the usage of PLM and PDM in MRO are very inadequate when compared with design. Phase 3: The adoption of PLM is in very high percentage in automotive and aircraft industry due do life period and the impossibility in prototype; but in aviation service industry the percentage of PLM application implemented is deficient. PLM reduce the normal design and assemble period of aircraft in many aircraft industry. This result in higher percentage of reduction in manufacturing process, but the percentage of reduction in life cycle period is very less. In aviation industry the profit amount of the aircraft is calculated only based on the total life period. It can be obtained only by proper maintenance and repair. From the article it pronounces that over 17000 commercial aircrafts are active at present. The analysis of budget in aviation MRO industry from the year 2005 to 2010 shows a massive increase. This increase in expense is due to inventories in the aviation MRO industry. The profitability of the aviation industry depends on the life span of the aircraft. To have maximum profit in aircraft industry, they need safe operation, adequate maintenance for the parts. PLM in MRO will minimize the time of maintenance, cost and also increase the total life period of the aircraft. Maintenance is the process to achieve reliability, safety and overall performance of the product. There are two types: one scheduled maintenance in which the repair process is scheduled according to the time intervals and second one is unscheduled maintenance and it implies when there is sudden breakdown. Earlier the scheduled and unscheduled maintenance are known as preventive maintenance. In addition to this, maintenance is further classified into On or OFF aircraft maintenance. On maintenance represents repaired within the craft without cancelling the transit. Off maintenance represents the change of parts i.e. overhaul of parts. Here, the temporary part is replaced till the repair process is carried out in the part. The aim of PLM in aviation MRO industry is to have adequate reliability, safety, proper data from OEM for overhaul and this will result in cost reduction. To acquire product reliability and safety in aircraft, both the maintenance processes are to be carried. For proper maintenance the major thing in consideration is product and part manual from Original Equipment Manufacturer (OEM). In order to minimize the difficulty of MRO the OEM has to provide the sufficient datas like methods of detailed data of the part, maintenance process, fault identification method, tools required to overhaul and also 3D modeling drawing view of the part. These are accomplished by the PDM which make use computer for safe data transfer from OEM to MRO and also by feedback from customer to OEM and MRO industry. Case studies on different methods of how maintenance, repair and overhaul are carried out in different aviation MRO industry located in Singapore. They described the percentage of inaccuracy in their method of repair. They point out the repair work flow procedure and the different methods of process they carried on for the repair of aviation part. The reason for this inadequate quality of repair is analyzed below in this paper. Journal relation with Product Design and Development The journal related to one of the main area Product Lifecycle Management (PLM) which was covered under the lecture PLM and Product Planning. In addition to PLM Product Data Management (PDM) are also discussed in this article which is a part of PLM. The information from the lecture about the tools PLM and PDM, gave the input how to develop a new product with an efficient lifecycle time i.e. from the process of concept creation to end life of the product or till recycling of the product and also effective data management system. These concepts are related to the service industry which is at the end phase of lifecycle of a product. This helps to identify the benefits and characteristic of PLM in aviation MRO industry. Journal Analysis The impact of Product Lifecycle Management (PLM) in aviation maintenance repair and overhaul (MRO) industry is analyzed in this article. They address the PLM benefits and necessity in MRO industry for effective and accurate quality in repair process. They also analyze the different maintenance process carried on in the aviation industry. Figure 2: Current Scenario Of Data Flow Without Adoption PLM in aviaton MRO industry. In this article they analyzed how they repaired the high pressure blade and outer cover panel. Also it describes the demerits in their method without PLM. It shows the data flow from the OEM to MRO industry is inadequate as shown in the figure 2. Thus it leads to improper Maintenance, repair and overhaul of the part in aircraft. Product Data Management (PDM) system should be applied with PLM for proper flow of information between the OEM to customer, customer to MRO and also MRO to OEM and vice versa. Such feedback from customer end will improve the process in MRO in addition to design of aircraft. Thus the figure 3 represents the flow of data between various processes in aviation industry. It shows the characteristic and benefits on adoption of PLM in service industry. In addition to service process PLM has to be implemented in management activities like Enterprise Resource Planning (ERP) and supply chain management (SCM) in aviation industry to increase the total lifecycle time of the new product. Figure 3: Implementaion of PLM with Product Data Management (PDM) in aviaton Industry. The case study done on the aviation MRO industry in Singapore represents the work flow of the repair process carried out on different parts of aircraft. In this, the original part definition data was measured and calculated by coordinate measurement system with the help of a reverse engineer. The measured data was not too accurate when compared to OEM data. This improper method is mainly because of insufficient product data information. This method will lead to poor reliability and safety, life period of the product is thus reduced and also overall life span of the aircraft deteriorates. Further, it leads to poor customer satisfaction and very less profitability to the aviation industry. The influencing factors that affect the MRO industry are insufficient data sharing between the OEM and MRO. To rectify the problem in aviation MRO industry, it is required to adopt PLM system incorporated with PDM. The author suggests adopting the PLM process in MRO industry as the process implemented in design process shows remarkable result in that sector. In addition to design and service, PLM can also be implemented on various processes in the aviation industry which will clearly show a valuable increase in the reliability and safety of the aircraft. It also increases the overall profitability of the product. In addition to this, PLM provides consistent and precise feedback between the OEM, MRO and customers and also between the partners in the enterprise resulting in optimization of the inventory and further improves the efficiency of maintenance by reducing the non-value added tasks. Conclusion PLM activities in the aviation industry have to be analyzed more precisely and research must be carried in various process of aircraft and MRO industry to increase the industries profit and service. In addition to PDM, Collaborative Product Development (CFD), Concurrent Engineering (CE) tools can also be used in future to increase the total life span of the aircraft and MRO industry.

Business: International Trade and Comparative Advantage

HOMEWORK 11 (Last HW – Due 4/28) Read the Logitech case and answer the following questions. 1: In a world without trade, what would happen to the costs that American consumers would have to pay for Logitech’s products? 2: Explain how trade lowers the costs of making computer peripherals such as mice and keyboards. 3: Use the theory of comparative advantage to explain the way in which Logitech has configured its global operations. Why does the company manufacture in China and Taiwan, undertake basic R&D in California and Switzerland, design products in Ireland, and coordinate marketing and operations from California? : Who creates more value for Logitech – the 650 people it employs in California and Switzerland, or the 4,000 employees at its Chinese factory? What are the implications of this observation for the argument that free trade is beneficial? 5: Why do you think the company decided to shift its corporate headquarters from Switzerland to Fremont? 6: To what extent can Porter’s diamond help explain the choice of Taiwan as a major manufacturing site for Logitech? 7: Why do you think China is now a favored location for so much high-technology manufacturing activity?How will China’s increasing involvement in global trade help that country? How will it help the world’s developed economies? What potential problems are associated with moving work to China? In a world without trade, what would happen to the costs that American consumers would have to pay for Logitech’s products? In a world without trade, the costs that American consumers would have to pay would be very high. The product that the case study gives for an example, Wanda, retails for $40, of which only $3 is the production cost from China.This $3 cost would rise immensely if production was in the United States because the American economy demands high wages. Explain how trade lowers the costs of making computer peripherals such as mice and keyboards. I t is amazing to think that trade helps to lower the costs of a product. As we saw in the previous question, if the United States were to build a product entirely domestically, the retail price would not be feasible to most consumers. With trading in place it allows for economies of scale.The technology can be developed in one country, the ergonomics in another country, the production in another country, and the assembly in yet another country. The shipping costs are much less than it would be to perform these tasks in one country. This is called absolute advantage, where someone is great at one thing. With this in mind you will get a product that has the best resources available at the lowest cost, which is comparative advantage. Finally, specialization is where everyone is doing what they do best and pulling their resources together to make one incredible product.Use the theory of comparative advantage to explain the way in which Logitech has configured its global operations. Why d oes the company manufacture in China and Taiwan, undertake basic R&D in California and Switzerland, design products in Ireland, and coordinate marketing and operations from California? Logitech is very brilliant when it comes to comparative advantage. It does basic R&D work in Switzerland with 200 employees, its headquarters are in Fremont, California with 450 employees as well as some R&D, the ergonomic designs are developed in Ireland, and the products are manufactured in Taiwan and China.The comparative advantage is that it is the most cost effective to break up the business in many different countries that specialize in a certain job. Who creates more value for Logitech, the 650 people it employs in Fremont and Switzerland, or the 4,000 employees at its Chinese factory? What are the implications of this observation for the argument that free trade is beneficial? The 650 employees in Fremont, California and Switzerland create more value for Logitech. It is where all of the R&D an d designs are developed.The 4,000 employees of China add $3 to the Wanda product, which is almost nothing in comparison to the remaining $37. Free trade is beneficial because labor costs can be brought way down. Why do you think the company decided to shift its corporate headquarters from Switzerland to Fremont? America specializes in R&D. The headquarters were moved because of the company’s global marketing, finance, and logistics operations. That is what Americans do best. To what extent can Porter’s diamond help explain the choice of Taiwan as a major manufacturing site for Logitech?There are four parts to Porter’s diamond: (1) factor of endowments, which is a nation’s position in factors of production such as skilled labor or the infrastructure necessary to compete in a given industry; (2) demand conditions, which is the nature of home demand for the industry’s product or service; (3) relating and supporting industries, which is the presence or absence of supplier industries and related industries that are internationally competitive; (4) firm strategy, structure, and rivalry, which are the conditions governing how companies are created, organized, and managed and the nature of domestic rivalry.Taiwan’s factor of endowments was that it had a science-based Industrial Park in Hsinchu. The demand conditions were that the Taiwanese were already trained to deal with technology. The relating and supporting industries were that Taiwan was the best as building technology as the lowest cost. The firm strategy, structure, and rivalry were that Taiwan had no domestic rivalry; they provided the lowest cost. Why do you think China is now a favored location for so much high technology manufacturing activity? How will China’s increasing involvement in global trade help that country?How will it help the world’s developed economies? What potential problems are associated with moving work to China? Chinese laborers are some of the cheapest in the world. Even though the workers are not treated very well, they are starting to rise up and demand more wages. The increase in foreign trade for China has helped to increase their economy. The world’s developed economies will benefit because of the globalization of production. The potential problems are that Americans are losing jobs to foreign markets. E

Animal Sexual Behavior

Talking about human sexuality last year, I was asked whether the different sexual orientations could be found in animals other than humans. Well, the answer was â€Å"yes†. But sexual orientation is just a bit of the big whole called sexual behavior. That is why in this occasion I am going to talk about animal sexual behavior. To put you in context, the study of animal sexuality is a rapidly developing field. It used to be believed that only humans and a handful of other species performed sexual acts other than for procreation, and that animals' sexuality was instinctive.Current understanding is that a wide range of species appear both to masturbate and to use objects as tools to help them do so; in many species animals try to give and get sexual stimulation with others where procreation is not the aim; and homosexual behavior has now been observed among 1,500 species. SEX FOR PLEASURE Do animals get pleasure from sex? Science cannot say for sure what animals do or do not find â€Å"pleasurable†. However, current understanding suggests that anything an animal does that furthers its own survival is pleasurable; in order to make sure  the animal  keeps doing it. That includes sexual intercourse.They say it is  nature's way  of ensuring the continuation of the species. Remember that the only purpose of the clitoris is to give pleasure, and nearly all female mammals have a clitoris. Nevertheless, very few animals have sex purely for pleasure, rather than for procreation. That is to say that, though most of animals do get pleasure from sex, not all of them will have sex just for the sake of it. TYPES OF ACTIVITIES 1. AUTOESTIMULATION OR MASTURBATION Petter Bockman of the Natural History Museum at the University of Oslo commented that: â€Å"Masturbation is common in the animal kingdom†¦There are plenty of animals who will masturbate when they have nothing better to do. Masturbation has been observed among primates, deer, killer whales and penguins, and we're talking about both males and females. They rub themselves against stones and roots. Orangutans are especially inventive. They make dildos of wood and bark. † 2. ORAL SEX Auto-fellating or licking, sucking and/or nuzzling by a male of his own penis in animals is documented in goats, primates, hyenas, bats and sheep, among others. 3.CROSS SPECIES SEX Many animals are sexual opportunists, partaking in sexual relations with individuals of visibly distinct species. This is more visible in domesticated species and animals in captivity, because in the wild, the two species would normally not share enough common territory to provide adequate opportunity for much cross-species sexual activity. Hybrid offspring can result from two organisms of distinct but closely related parent species, although the resulting offspring is not always fertile.This is the case of the mule (jack/mare cross), the hinny (horse/jenny cross), the tiglon (tiger/lioness cross) and the liger (lion/tigress cross). 4. PROSTITUTION In some penguin species, the females, even when in a committed relationship, will exchange sexual favors with strange males for the pebbles they need to build their nests. Prostitution was also observed among chimpanzees, which trade food for sex. 5. SEXUAL IMAGINARY VIEWING Problems with encouraging pandas to mate in captivity have been very common.However, showing young male pandas â€Å"panda pornography† is widely credited with a recent population boom among pandas in zoos. It shows that pandas, as well as most of primates, really value the images and are able to put sexual meaning on them. 6. NECROPHILIA Necrophilia in animals is where a living animal engages in a sexual act with a dead animal. It has been reported in cane toads and ducks. 7. HOMOSEXUAL BEHAVIOR No species has been found in which homosexual behavior has not been shown to exist, with the exception of species that never have sex at all.Homosexual behavior in animals re fers to the documented evidence of homosexual and bisexual behavior in animals other than humans. Birds: Black swans: An estimated one-quarter of all black swans pairings are homosexual and they steal nests, or form temporary threesomes with females to obtain eggs, driving away the female after she lays the eggs. More of their cygnets survive to adulthood than those of different-sex pairs, possibly due to their superior ability to defend large portions of land. The same reasoning has been applied to male flamingo pairs raising chicks.Gulls: 10 to 15 percent of female western gulls in some populations in the wild exhibit homosexual behavior. Mallards: form male-female pairs only until the female lays eggs, at which time the male leaves the female. Mallards have rates of male-male sexual activity that are unusually high for birds, in some cases, as high as 19% of all pairs in a population. Penguins: Male penguin couples have been documented to mate for life, build nests together, and to use a stone as a surrogate egg in nesting and brooding. Vultures, ibises and pigeons. MammalsAmazon Dolphin: The Amazon River dolphin or boto has been reported to form up in bands of 3–5 individuals enjoying group sex. The groups usually comprise young males and sometimes one or two females. Sex is often performed in non-reproductive ways, using snout, flippers and genital rubbing, without regards to gender. In captivity, they have been observed to sometimes perform homosexual and heterosexual penetration of the blowhole, a hole homologous with the nostril of other mammals, making this the only known example of nasal sex in the animal kingdom.American Bison: Courtship, mounting, and full anal penetration between bulls has been noted to occur among American Bison. Also, mounting of one female by another is common among cattle. Bonobo: The Bonobo, which has a matriarchal society, unusual amongst apes, is a fully bisexual species—both males and females engage in hetero sexual and homosexual behavior, being noted for female-female homosexuality in particular. About 60% of all sexual activity in this species is between two or more females. Bonobos use sex to divert attention and to defuse tension.Elephants: African and Asian males will engage in same-sex bonding and mounting. Such encounters are often associated with affectionate interactions, such as kissing, trunk intertwining, and placing trunks in each other's mouths. Unlike heterosexual relations, which are always of a fleeting nature, the relationships between males may last for years. Asiatic elephants in captivity devote roughly 45% of sexual encounters to same-sex activity Giraffes: Mounting between male giraffes males have been found to be more frequent than heterosexual coupling: up to 94% of mounting incidents take place between two males.Japanese macaque: With the Japanese macaque same-sex relations are frequent, though rates vary between troops. Females will form â€Å"consortshipsâ⠂¬  characterized by affectionate social and sexual activities. Sheep: homosexuality in male sheep (found in 8% of rams) is associated with a region in the rams' brains which is half the size of the corresponding region in heterosexual male sheep. Spotted hyenas, bottlenose dolphins, whales, deer, polecats and lions. Others: Dragonflies: Male homosexuality has been inferred in several species of dragonflies.About 80 % of sexual coupling occurs between males. Sources: Bagemihl, B. 1999. Biological Exuberance: Animal Homosexuality and Natural Diversity. St. Martin's Press. 752 pp. de Waal, F. M. B. & R. Ren (1988): Peacemaking among Primates. Harvard University Press, Cambridge (Massachusetts). Roughgarden, J. 2004. Evolution's Rainbow: Diversity, Gender, and Sexuality in Nature and People. University of California Press. Berkeley CA. 474 pp Sommer, V ;amp; P. L Vasey (2006): Homosexual Behaviour in Animals, An Evolutionary Perspective. Cambridge University Press, Cambridge.

Cybercrime A Broad Spectrum Of Criminal Activities

With all the information stored in the cloud, online data storage, which can be accessed through the internet, it does not take long for the criminals to figure out how they can steal your information. Cybercrime can cover a broad spectrum of criminal activities using a computer. Many of these activities include cyber bullying, financial fraud, and identity theft. Since most of our information is stored online, whether it is through social media or even your hospital records, with the right set of skill and a little bit of luck criminal can get their hands on just about anything. Anything you post on the internet will stay there and there is no way to erase it because the internet has become a place where nobody is safe. Every country is concerned about the cybercrime, not even the government agencies like The Federal Bureau of Investigation or The Central Intelligence Agency is safe as criminal’s have hacked their website and released data from those agencies. In their articl e, Marc and Susan Brenner stated that, â€Å"A 19-year old Russian student using the name `Maxim stole 300,000 credit card numbers from the computer server of CD Universe. Maxim extorted CD Universe by agreeing to destroy the customer data he had stolen in exchange for $100,000 cash. CD Universe did not pay the thief quickly enough for his liking, and Maxim published the credit card and customer data of 25,000 victims online† (3). This goes to show that every cybercriminal has their own motivation, in thisShow MoreRelatedCyber Criminology: The Prevalence of Cyberstalking, Online Harrassment and Bullying2020 Words   |  9 Pagesa term that is interchangeable with cyberbullying and cyberharassment (Jameson, 2008, p.236). This wide array of internet criminal activity is defined along a continuum of cybercrime extending from purely in the physical world to purely in cyberspace (Gordon and Ford, 2006, p.15). 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