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Keywords: reliability
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Journal Articles
Article Type: Research Papers
J. Mech. Des. April 2022, 144(4): 041701.
Paper No: MD-21-1346
Published Online: November 9, 2021
...Huiru Li; Xiaoping Du Predicting system reliability is often a core task in systems design. System reliability depends on component reliability and dependence of components. Component reliability can be predicted with a physics-based approach if the associated physical models are available...
Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2021, 143(11): 112001.
Paper No: MD-20-1585
Published Online: May 19, 2021
... of remanufactured goods while simultaneously identifying avenues for improvement. In this paper, we contribute to the literature on life cycle studies by incorporating reliability into LCWC analysis and LCA with the goal of improving long-term/multiple life cycle decision making. We develop a branched power-law...
Journal Articles
Article Type: Research-Article
J. Mech. Des. September 2014, 136(9): 091002.
Paper No: MD-13-1443
Published Online: June 11, 2014
... a probabilistic multibody dynamic analysis (PMBDA) of the high-speed-parallel-helical-stage (HSPHS) of a WTG that considers the uncertainties of generator-side torque-loading and input-shaft speed as well as assembly and design parameter uncertainties. Component reliability (R c ) or probability of failure (P f...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. August 2013, 135(8): 084501.
Paper No: MD-12-1439
Published Online: July 20, 2013
... the deterministic design practice of gears and gear systems. A contact based, rigid multibody spur gear pair model with random loading, and design parameters has been developed. An advanced mean based on fast probability integration method was implemented to perform a reliability analysis of performance...
Journal Articles
Article Type: Research Papers
J. Mech. Des. September 2012, 134(9): 091005.
Published Online: August 9, 2012
...Xiaoping Du; Zhen Hu In many engineering applications, the probability distributions of some random variables are truncated; these truncated distributions are resulted from restricting the domain of other probability distributions. If the first order reliability method (FORM) is directly used...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. January 2012, 134(1): 014502.
Published Online: January 4, 2012
...Yuanfu Tang; Jianqiao Chen; Junhong Wei In practical applications, there may exist a disparity between real values and optimal results due to uncertainties. This kind of disparity may cause violations of some probabilistic constraints in a reliability based design optimization (RBDO) problem...
Journal Articles
Article Type: Research Papers
J. Mech. Des. December 2011, 133(12): 121005.
Published Online: December 9, 2011
...Jongsoo Lee; Chang Yong Song The response surface method (RSM) and the moving least squares method (MLSM) are extensively used due to their computational efficiency in solving reliability based design optimization (RBDO) problems. Since traditional RSM and MLSM are described by second-order...
Journal Articles
Article Type: Research Papers
J. Mech. Des. October 2011, 133(10): 101011.
Published Online: October 25, 2011
...Byeng D. Youn; Chao Hu; Pingfeng Wang Most engineered systems are designed with a passive and fixed design capacity and, therefore, may become unreliable in the presence of adverse events. Currently, most engineered systems are designed with system redundancies to ensure required system reliability...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. September 2011, 133(9): 094503.
Published Online: September 9, 2011
...Adrien Zéanh; Olivier Dalverny; Arezki Bouzourene; Christophe Bruzy In this paper, an Insulated Gate Bipolar Transistor (IGBT) module designed for aeronautic applications is investigated using structural reliability methods coupled with Finite Elements (FE) modeling. The lifetime of the module...
Journal Articles
Article Type: Research Papers
J. Mech. Des. September 2011, 133(9): 091001.
Published Online: September 7, 2011
...Yoojeong Noh; Kyung K. Choi; Ikjin Lee; David Gorsich; David Lamb For reliability-based design optimization (RBDO), generating an input statistical model with confidence level has been recently proposed to offset inaccurate estimation of the input statistical model with Gaussian distributions...
Journal Articles
Article Type: Research Papers
J. Mech. Des. August 2011, 133(8): 081003.
Published Online: July 27, 2011
...Dong-Shin Lin; Chun-Min Ho; Kuei-Yuan Chan In this research, we investigate design optimization under uncertainties for problems with two objectives. Reliability-based design optimization (RBDO) that considers uncertainties as random variables and/or parameters and formulates constraints...
Journal Articles
Article Type: Research Papers
J. Mech. Des. July 2011, 133(7): 071003.
Published Online: July 8, 2011
...Pingfeng Wang; Chao Hu; Byeng D. Youn This paper presents a Generalized Complementary Intersection Method (GCIM) that can predict system reliability for series, parallel, and mixed systems. The GCIM is an extension of the original study, referred to as the Complementary Intersection Method (CIM...
Journal Articles
Article Type: Research Papers
J. Mech. Des. June 2011, 133(6): 061001.
Published Online: June 15, 2011
...H. Millwater; Y. Feng Bounds on variables are often implemented as a part of a quality control program to ensure a sufficient pedigree of a product component, and these bounds may significantly affect the product’s design through constraints such as cost, manufacturability, and reliability. Thus...
Journal Articles
Article Type: Research Papers
J. Mech. Des. May 2011, 133(5): 051003.
Published Online: June 6, 2011
...Zhaofeng Huang; Yan Jin Bayesian reliability analysis (BRA) technique has been actively used in reliability assessment for engineered systems. However, there are two key controversies surrounding the BRA: the reasonableness of the prior and the consistency among all data sets. These issues have...
Journal Articles
Article Type: Technical Briefs
J. Mech. Des. April 2011, 133(4): 044501.
Published Online: May 2, 2011
...Po Ting Lin; Hae Chang Gea; Yogesh Jaluria Reliability-based design optimization (RBDO) problems have been intensively studied for many decades. Since Hasofer and Lind [1974, “Exact and Invariant Second-Moment Code Format,” J. Engrg. Mech. Div., 100 (EM1), pp. 111–121] defined a measure...
Journal Articles
Article Type: Research Papers
J. Mech. Des. March 2011, 133(3): 031006.
Published Online: March 1, 2011
...Tomas Dersjö; Mårten Olsson The computational effort for reliability based design optimization (RBDO) is no longer prohibitive even for detailed studies of mechanical integrity. The sequential approximation RBDO formulation and the use of surrogate models have greatly reduced the amount...
Journal Articles
Article Type: Research Papers
J. Mech. Des. February 2011, 133(2): 021003.
Published Online: January 24, 2011
..., the proposed method calculates the component reliability, system reliability, or statistical moments and their sensitivities by applying Monte Carlo simulation to the accurate surrogate model. Since the surrogate model is used, the computational cost for the stochastic sensitivity analysis is affordable...
Journal Articles
Article Type: Research Papers
J. Mech. Des. January 2011, 133(1): 011004.
Published Online: December 29, 2010
...Chun-Min Ho; Kuei-Yuan Chan In this work, the presence of equality constraints in reliability-based design optimization (RBDO) problems is studied. Relaxation of soft equality constraints in RBDO and its challenges are briefly discussed, while the main focus is on hard equalities that cannot...
Journal Articles
Article Type: Research Papers
J. Mech. Des. November 2010, 132(11): 111002.
Published Online: October 20, 2010
...Kai-Shian Hsu; Kuei-Yuan Chan In this work, we develop a filter-based sequential quadratic programming (SQP) algorithm for solving reliability-based design optimization (RBDO) problems with highly nonlinear constraints. The proposed filter-based SQP uses the approach of average importance sampling...
Journal Articles
Article Type: Research Papers
J. Mech. Des. September 2010, 132(9): 091012.
Published Online: September 17, 2010
... and reliability using a genetic algorithm. Then, a multiattribute utility function is employed to maximize utility across different segments of the market and also across different lifecycles within each segment. Post-optimal studies help determine feasibility of component redesign in addition to parts...