2011 Proceedings - Annual Reliability and Maintainability Symposium

24-27 Jan. 2011

Filter Results

Displaying Results 1 - 25 of 109
  • [Front cover]

    Publication Year: 2011, Page(s): c1
    Request permission for commercial reuse | PDF file iconPDF (42 KB)
    Freely Available from IEEE
  • The Web-Accessible Repository of Physics-based Models (WARP)

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB) | HTML iconHTML

    The Reliability Information Analysis Center (RIAC), under contract to the Defense Technical Information Center (DTIC), is developing and implementing a Web-Accessible Repository of Physics-based Models (WARP) database and website to centrally organize and make available information and data on physics-based models. In addition to providing access to available Physics-of-Failure (PoF) model informa... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Lithium battery analysis: Probability of failure assessment using logistic regression

    Publication Year: 2011, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (892 KB) | HTML iconHTML

    Fourteen hundred rows by 53 columns of vendor cell acceptance data were processed though logistic regression using Insightful Corporation's Insightful Miner™ (IM) and SAS Institute Inc.'s SAS® Enterprise Miner (EM) to find any significant correlation between 52 test output parameters (independent variables) and the pass/fail outcome for each of the 1,400 battery cells test... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A quantitative approach for medical device Health Hazard Analysis

    Publication Year: 2011, Page(s):1 - 5
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (482 KB) | HTML iconHTML

    Health Hazard Analysis (HHA) is one major type of patient health risk assessment for medical device field performance issue. U.S. Food and Drug Administration (FDA) has an online form, listing the needed information for HHA. In this paper, we will illustrate a quantitative HHA approach, which is structured in a rigorous risk assessment framework, with several critical steps, concepts and some key ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability analysis of warm standby systems using sequential BDD

    Publication Year: 2011, Page(s):1 - 7
    Cited by:  Papers (25)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (335 KB) | HTML iconHTML

    Warm standby sparing is a fault-tolerant design technique developed as a compromise between cold sparing and hot sparing approaches in terms of power consumption and recovery time. Warm spares have time-dependent failure behavior; before and after they are used to replace a faulty component, warm spares have different failure rates or in general failure distributions. Existing approaches for analy... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability prognostics for electronics via built-in diagnostic tools

    Publication Year: 2011, Page(s):1 - 7
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (515 KB) | HTML iconHTML

    This paper proposes a practical model to monitor the degradation of electronic equipment and further to predict the remaining useful life based on the self-diagnostic data. The de gradation precursor, characterized by voltage or current signals, is modeled as a Non-stationary Gaussian process with tim e-varying mean and variance. Statistical testing is then used to characterize the trend patterns ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Best practices methods for robust design for reliability with parametric cost estimates

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1171 KB) | HTML iconHTML

    ANSI/GEIA-STD-0009-2008, (STD-0009) "Reliability Program Standard for Systems Design, Development, and Manufacturing," was completed in November 2008 at the behest of the Defense Science Board Developmental Test (DT) and Evaluation Task Force and adopted in August 2009 for use by the Department of Defense (DoD). The demand for highly-reliable systems/products prompted the development of a new stan... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability of Multi-State Systems subject to competing failures

    Publication Year: 2011, Page(s):1 - 7
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (425 KB) | HTML iconHTML

    This paper identifies and addresses an issue of competing propagated failures and failure isolation effect caused by functional dependence for Multi-State Systems (MSS). An analytical combinatorial method is proposed for incorporating the competing failure processes in the reliability analysis of MSS. The proposed method can evaluate the reliability of MSS with arbitrary distributions of the syste... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability growth planning for discrete-use systems

    Publication Year: 2011, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (563 KB) | HTML iconHTML

    In the recent past, the Defense Science Board (DSB) Task Force report on Developmental Test and Evaluation revealed a significant increase in the number of DoD weapon system programs evaluated as not being operationally suitable. The primary reason is the lack of material readiness due to poor system Reliability, Availability, and Maintainability (R AM). The report shows that nearly half of U.S. A... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improving software-based system R&M with better error processing

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (491 KB) | HTML iconHTML

    Software developers typically incorporate error-detection code to find and report faults at all levels. A system's reliability and maintainability can be significantly improved thorough wider use of error detection, better detection methods, and more informative reporting, but the benefits come at a price. This paper explores practical techniques in real-world applications that can greatly improve... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Analyzing interconnection design safety using bent pin analysis

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (653 KB) | HTML iconHTML

    Low-tech hazards can cause catastrophic results in safety-critical and other systems. Designers sometimes fail to give adequate consideration to hazards in low-tech areas such as electrical interconnection designs, particularly when different design teams develop the subsystems on opposite ends of the interconnections. A good approach to addressing these hazards is a structured bent pin analysis t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Reliability growth and the caveats of averaging: A Centaur case study

    Publication Year: 2011, Page(s):1 - 7
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (461 KB) | HTML iconHTML

    Spacecraft reliability modeling is plagued by data scarcity and lack of data applicability. Systems tend to be one-of-a-kind, and observed failures tend to be the result of systemic defects or human errors, instead of component failures. The result is too often a gap between two extreme estimating approaches: probabilistic risk assessments (PRA) that are component-based lead to optimistic estimate... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Improvements in estimating software reliability from growth test data

    Publication Year: 2011, Page(s):1 - 5
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (459 KB) | HTML iconHTML

    John Musa's first book on Software Reliability Engineering advises the analyst to use the Musa Basic Law or the Musa-Okumoto Logarithmic Law to estimate failure intensity, depending on which provides the best fit to the data. He refered to the papers by Tractenberg and Downs as providing a foundation for these models. I propose using Musa's basic model in combination with an approach Duane and Cod... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Effective oversight & development of DFMEAs on large scale, complex systems

    Publication Year: 2011, Page(s):1 - 5
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB) | HTML iconHTML

    Design failure mode and effects analysis (DFMEA) is part of any Design for Reliability (DfR) effort to design, develop, and build a large, technologically-challenging product. As there may be many cross-functional teams working on DFMEA at any point in time, management must provide effective oversight and project management skills to ensure that the final product will not only be on time, but also... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Quantifying the value of risk-mitigation measures for launch vehicles

    Publication Year: 2011, Page(s):1 - 7
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (428 KB) | HTML iconHTML

    The efficient development of a highly reliable system, such as a new crew launch vehicle, cannot afford to ignore the lessons of history. A number of interesting studies of launch vehicle failures provide very valuable, albeit qualitative \“lessons learned\” on measures that a risk-informed program should take. If schedule and funds were unlimited, a very intensive and exhaustive tes... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An improved modular approach for dynamic fault tree analysis

    Publication Year: 2011, Page(s):1 - 5
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (450 KB) | HTML iconHTML

    Modularization technique allows efficient simplification of Dynamic and Static Fault Tree (FT). Each independent sub-tree (module) in static FT can be calculated separately and substituted by a basic event with obtained probability of failure. However, there is a significant restriction of this procedure in Dynamic FT, if it is converted to a Markov Chain. An independent sub-tree inside of Dynamic... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • New approach for risk analysis and management in medical engineering

    Publication Year: 2011, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (357 KB) | HTML iconHTML

    Risk management in its current form does not fulfill today's requirements for enterprises in risk-sensitive industries. Risks resulting from well-known boundary conditions, such as shorter development times, a higher number of variants or global markets can just be identified inadequately by existing methods. In particular the increased product complexity, e. g. in the medical engineering branch, ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Spares provisioning for repairable systems under fleet expansion

    Publication Year: 2011, Page(s):1 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (461 KB) | HTML iconHTML

    We consider a spares provisioning problem in which a fleet of identical repairable systems is acquired in stages over time. Each system comprises a series of line replaceable units (LRU) so as to achieve a high availability level. The first part of the paper deals with the methods for making statistical inferences on LRU reliability, and the second part deals with the policy of optimal spare unit ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimized acoustic microscopy screening for multilayer ceramic capacitors

    Publication Year: 2011, Page(s):1 - 4
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB) | HTML iconHTML

    A program was having a significant number of early life failures due to infant mortality of Multilayer Ceramic Chip Capacitors (MLCC). Board rework was difficult and expensive due to the locations of the MLCC and the complexity of the board. The proposed solution was to develop an improved acoustic microscopy screen for MLCC with latent defects 30 MHz acoustic microscopy screening is unable to det... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Design of reliability demonstration testing for repairable systems

    Publication Year: 2011, Page(s):1 - 6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (414 KB) | HTML iconHTML

    Reliability Demonstration Testing (RDT) for non-repairable systems has been successfully implemented in many industries, such as microelectronics, aerospace and healthcare. In designing RDTs, the famous beta-binomial formula is often applied to determine the necessary sample size so that the required reliability metric at a given confidence level can be demonstrated. However, many systems, such as... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Using FMECA to design sustainable products

    Publication Year: 2011, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (389 KB) | HTML iconHTML

    In the past, customers were mainly concerned with buying products that were both reliable and easy to maintain. While still important, today's customers are more and more interested in purchasing products that are also sustainable. This poses new challenges for companies who develop either commercial or military products. Now, their products not only need to work well and be easy to service, but t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Surviving the Lead Reliability Engineer role in high unit value projects

    Publication Year: 2011, Page(s):1 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB) | HTML iconHTML

    A project with a very high unit value within a company is defined as a project where a) the project constitutes one of a kind (or two-of-a-kind) national asset type of project, b) very large cost, and c) a mission failure would be a very public event that will hurt the company's image. The Lead Reliability engineer in a high visibility project is by default involved in all phases of the project, f... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Hazard analysis based on human-machine-environment coupling

    Publication Year: 2011, Page(s):1 - 7
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (908 KB) | HTML iconHTML

    The concept "Human (H)-Machine (M)-Environment (E) coupling" is put forward, and the connotative meaning and representation of the hazards owning to coupling is represented. Based on Process Breakdown Structure (PBS), the method characterizing H-M-E coupling in operational process is put forward, and a multi-view model for integrated analysis is established. The model describes an operational proc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Special topics for consideration in a design for reliability process

    Publication Year: 2011, Page(s):1 - 6
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (435 KB) | HTML iconHTML

    In this paper, we look at certain areas of the Design For Reliability (DFR) process where missteps or misapplications are common due to misunderstood “common practices” or due to attempts to either oversimplify the process or introduce unnecessary complexity. We show how these practices can hav e detrimental effects on the reliability of a product and identify what the areas of impro... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Planning a reliability growth program utilizing historical data

    Publication Year: 2011, Page(s):1 - 6
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (463 KB) | HTML iconHTML

    From historical data this paper will note the significant patterns and key parameters that provide the basis for general guidelines that are very useful in establishing a realistic reliability growth testing program. These guidelines also address concerns raised by the 2008 Defense Science Board Task Force addressing reliability. As noted by this Task Force two major risks areas are the initial MT... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.