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Electronic Engineering

$15.99

$15.99

Project Abstract and Outline Topic: Space Shuttle Challenger Disaster Abstract In the project I will study the well-known Space Shuttle Challenger Disaster based on the system engineering process learned or will be learned from class. Following the steps, firstly I will define the problem. The evidence assembled by the Commission indicates the main element contributed to this accident is that the rubber O-rings used on the right Solid Rocket Motor failed in the cold temperature. System requirements and feasibility analysis is nonessential in this case because Challenger is not the first space shuttle launched by NASA. In fact, space shuttles had serviced well before and after the Challenger disaster, so I would like to assume the whole system requirements and feasibility analysis was fine at this point. The environment element was apparently omitted in terms of operational requirements. There is nothing to be discussed in the projected for Logics and maintenance service. As for technical performance measures, I will see if there is any quantitative value conflict between mechanical structure versus cost or size. Functional analysis and system synthesis, analysis, and design optimization issue is nonessential as far as I am concerned. It is found that the company that designed the solid rocket boosters had ignored warnings about potential issues, and this brings out my concern to how requirements of a massive system like a space shuttle be allocated. It is also said that NASA managers were aware of these design problems but also failed to take action. This is an evidence to think about design integration because NASA managers are a small number of selected qualified individuals. System test and evaluation part is essential in the written project as well, but production and/or construction will be discarded. System operational use and sustaining support will be investigated based on the fact that two Solid Rocket Motor segments had grown as a result of prior use found by the Commission. Last but not least, I will discuss system retirement and material recycling/disposal even though shuttle missions were only temporarily suspended by NASA because of the Challenger disaster instead of actually literally retried indicated by the title of this step. Outline • Definition of problems o Two rubber O-rings, which had been designed to separate the sections of the rocket booster, had failed due to cold temperatures on the morning of the launch. • System requirements • Feasibility analysis • Operational requirements o Environment – no flight hardware shipped to the launch site that fell outside the limits of Shuttle design specifications • Logics and maintenance service • Technical performance measures o Experiments indicate that the primary mechanism that actuates O-ring sealing is the application of gas pressure to the upstream (high-pressure) side of the O-ring as it sits in its groove or channel. For this pressure actuation to work most effectively, a space between the O-ring and its upstream channel wall should exist during pressurization. • Functional analysis • Requirements allocation o Morton Thiokol, the company that designed the solid rocket boosters, had ignored warnings about potential issues • System synthesis, analysis, and design optimization • Design integration o The design team may include only a small number ofselected qualified individuals, with the objective of preparing a comprehensivesystem specification o NASA managers were aware of these design problems but also failed to take action • System test and evaluation o Accident was caused by a failure in the joint between the two lower segments of the right Solid Rocket Motor. The specif(i)c failure was the destruction of the seals that are intended to prevent hot gases from leaking through the joint during the propellant burn of the rocket motor. • Production and/or const

Electronic Engineering

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