the reliability data for each component. • The pump has the following data: scale factor α = 8000 hours and shape factor β = 1. • The motor has the following data: scale factor α = 9000 hours and shape factor β = 1‚8. Based on these data: • calculate the reliability of pump and motor at time t = 1000 hours; • identify the stage of the life cycle of pump and motor; • evaluate the reliability at time t = 1000 hours of a system made by one pump and one motor (system A) and the reliability of a
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deficiencies. The actual quality of a product is a vital part of a consumer’s perception of a good or service. Quality can describe any attributes in a set of characteristics that satisfy or disappoint the customer‚ including usability‚ reliability‚ and durability. An actual product can influence a consumer’s perception on its quality‚ but in the end‚ particularly with non-durable goods‚ a customer’s actual experience will determine their perception of quality. According to the
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Submitted to Professor. Xie Lu Yang School of Mechanical Engineering and Automation Northeastern University Abstract This paper provides an overview and guideline on the use of Failure Mode and Effect Analysis (FMEA) for ensuring that reliability is designed into typical manufacturing equipment. FMEA is a very important method which should be employed in companies for an engineering design‚ production process‚ and new product in preproduction and production sphere in product life cycle.
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References: Bloch H.P and Geitner F.K. (2006). Maximizing Machinery Uptime‚ Elsevier‚ MA‚ USA. Center for Chemical Process Safety‚ AIChE (1989). Guidelines for Process Equipment Reliability Data with Data Tables‚ ISBN 0816904227 Dhillon B.S. 2002. Engineering Maintenance‚ CRC Press‚ Boca Raton‚ USA. Nguyen D.Q‚ C. Brammer and M. Bagajewicz. (2008). A New Tool for the Evaluation of the Scheduling of Preventive Maintenance for Chemical
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It is a technique to resolve potential problems in a system before they occur. It is most widely used reliability analysis technique performed between the conceptual and initial stage of the detailed design phase of the system in order to assure that all the potential failures have been considered and the proper provisions have been made to eliminate these failures. [1] (Ref. system reliability theory‚2nd edition‚ Marvin Rausand) this technique can assist in selecting alternative concept for the
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The Bathtub Curve and Product Failure Behavior Part One - The Bathtub Curve‚ Infant Mortality and Burn-in by Dennis J. Wilkins Retired Hewlett-Packard Senior Reliability Specialist‚ currently a ReliaSoft Reliability Field Consultant This paper is adapted with permission from work done while at Hewlett-Packard. Reliability specialists often describe the lifetime of a population of products using a graphical representation called the bathtub curve. The bathtub curve consists of three periods: an
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The Relationship Between Relevance and Reliability Accounting information provided by accounting entity must reach a certain quality standard‚ so that it can meet the users’ needs of accounting information. Financial accounting information quality has four basic characteristics‚ can be understandability relevance‚ reliability and comparability. Two of the greatest impacts on the accounting of the main accounting policies are relevance and reliability. When we compare and contrast any two subjects
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NEBOSH NEBOSH INTERNATIONAL DIPLOMA IN OCCUPATIONAL HEALTH AND SAFETY Unit IA: International management of health and safety TUESDAY 18 JANUARY 2011 3 hours‚ 0930 to 1230 10 minutes reading time is allowed before the start of this examination. You may not write anything during this period. Answer both Section A and Section B SECTION A This section contains six questions. Answer ALL SIX questions. All questions carry equal marks. The maximum marks for each question‚ or part of a
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Validity and Reliability of Research HCS/465 July 26‚ 2013 Validity and Reliability of Research In today’s society researchers use many methods to determine facts‚ rules‚ laws‚ and regulations. Politicians‚ scientists‚ health care organizations‚ and educational groups provide solutions and reasoning to how and why the study of research is important in everyday living. According to the Webster
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Rausand‚ System Reliability Theory‚ John Wiley & Sons‚ Inc.‚ 1994‚ ISBN 0-471-59397-4 Meng-Lai Yin 1 FMEA (Failure Mode and Effects Analysis) • Qualitative analysis • Purpose: identify design areas where improvements are needed to meet reliability requirements • One of the first systematic techniques for failure analysis • Developed in the late 50s to study problems that might arise from malfunctions of military systems • Often used as the first step of a system reliability study • An
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