ENRE Masters or Graduate Certificate, OAEE, University of Maryland

Master of Engineering in Reliability Engineering
Graduate Certificate in Engineering - Reliability Engineering

Master of Engineering Courses (PMRE)
Graduate Certificate Courses (Z064)

For more information contact:
Dr. Ali Mosleh, Professor and Director
Reliability Engineering
0151F Glenn L. Martin Hall (Building 088)
Phone: 301-405-5215
Email: mosleh@umd.edu

Master of Engineering Courses

This interdisciplinary option is offered by the Department of Mechanical Engineering. Typical areas of study include topics such as the mechanisms and physics of failure, methods of design for reliability, maintainability engineering, life cycle costing and equipment sparing policies. There are five core courses plus a one-credit seminar course required in reliability engineering and five technical electives (at least 6 courses at the 600 level or above).

Reliability Engineering Core

ENRE 600 Fundamentals of Failure Mechanisms (3) Prerequisite: ENRE 620. Organization, management and communication concepts in reliablity engineering. Mechanisms and physics of failure, methods for failure-rate determination. Methods of design for reliability and maintainability. Life cycle costing and equipment sparing policies. Measuring reliability for improvement. Those sections that begin with a letter are taught via ITV and are not intended for College Park campus students.

ENRE 602 Reliability Analysis (3) Prerequisite: ENRE 620. Principal methods of reliability analysis, including fault tree and reliability block diagrams, method of failure mode and effect analysis (FMEA); event tree construction and evaluation; reliability data collection and analysis; methods of modeling systems for reliability analysis. Focus on systems of concern to all engineers, such as, problems related to process industries, fossil-fueled power plant availability, and other subjects. Methods of quality control and assurance.

ENRE 620 Mathematical Techniques of Reliability Engineering (3) Basic probability and statistics; application of selected mathematical techniques in analyzing and solving reliability engineering problems. Applications of matrices, vectors, tensors, differential equations, integral transforms, and probabilistic methods to a wide range of reliability related problems.

ENRE 641 Accelerated Testing (3) Prerequisite: ENRE 663 or permission of instructor. Models for life testing at constant stress. Graphical and analytical analysis methods. Test plans for accelerated testing. Competing failure modes and size effects. Models and data analyses for step and time varying stresses. Optimization of test plans.

ENRE 653 Advanced Reliability and Maintainability Engineering (3) Prerequisite: ENRE 600. Reliability and maintainability concepts in conceptual, development, production, and deployment phases of industrial products. Costing of reliability, methods of obtaining approximate reliability estimates and confidence limits. Methods of reliability testing-current research and developments in the area of reliability engineering. Modern CAD techniques in reliability design, thermal analysis of circuit boards, vibration analysis, maintainability analysis, and preventive maintenance methods.

ENRE 655 Advanced Methods in Reliability Modeling (3) Prerequisite: ENRE 602 credit will be granted for only one of the following: ENRE 655 or ENRE 665. Formerly ENRE 665. Bayesian methods and applications, estimation of rare event frequencies, uncertainty analysis and propagation methods, reliability analysis of dynamic systems, analysis of dependent failures, reliability of repairable systems, human reliability analysis methods and theory of logic diagrams and application to systems reliability.

Technical Electives

Approved courses in reliability engineering or approved technical electives in other programs such as systems engineering, electronic packaging materials and manufacturing, and mechanical engineering.

ENPM 808 Engineering Reliability & Risk Assessment (3) With ever-increasing frequency, aerospace professionals are being tasked with quantifying the reliability and the subsequent risk of aerospace systems. This is most evident in the engineering efforts for maintaining aging aircraft systems. Indeed, denumerable reliability and risk are the very core problems of the RCM (reliability centered maintenance) concept. Without objectively calculated reliability and risk assessments, life extension issues become clouded in vaguely expressed uncertainties. The vagueness engenders a lack of confidence in the knowledge base, which in turn engenders substantial conservatism in the decision-making process.

ENPM 808 Probabilistic Methods in Engineering Mechanics (3) The objective is to understand probability concepts as applied to problems in engineering mechanics with particular emphasis on mechanical system reliability. The probability of failure (and its complement, reliability) will be calculated for several failure mechanisms; exceeding ultimate strength, yielding, fatigue, fracture, buckling, etc.

ENRE 447 Fundamentals of Reliability Engineering (3) Topics covered include: fundamental understanding of how things fail, probabilistic models to represent failure phenomena, life-models for non-repairable items, reliability data collection and analysis, software reliability models, and human reliability models.

ENRE 452 Software Testing (3) Prerequisites: CMSC 114 or 214, and either CMSC/MATH 475 or MATH 461; or permission of department. Topics covered include: testing methods for unit testing, integration testing, and system testing; structural testing (flowgraphs and data-flows); functional testing (behavioral models and textual descriptions); deterministic and statistical generation of inputs; and testing of object-oriented programs.

ENRE 640 Collection and Analysis of Reliability Data (3) Prerequisites: CMSC 114 or 214, and either CMSC/MATH 475 or MATH 461; or permission of department. Topics covered include: testing methods for unit testing, integration testing, and system testing; structural testing (flowgraphs and data-flows); functional testing (behavioral models and textual descriptions); deterministic and statistical generation of inputs; and testing of object-oriented programs.

ENRE 642 Reliability Engineering Management (3) Unifying systems perspective of reliability engineering management. Design, development and management of organizations and reliability programs including: management of systems evaluation and test protocols, development of risk management-mitigation processes, and management of functional tasks performed by reliability engineers.

ENRE 643 Advanced Product Assurance (3) Prerequisites: ENRE 600 and ENRE 602 or permission of instructor. Product assurance policies, objectives, and management. Material acquisition management, quality control documents and product assurance costing. Design input and process control, advanced testing technology, regression methods, and nondestructive testing. Simulation techniques, CAD/CAE methods. Software quality management, software documentation, and software testing methods. Total quality management.

ENRE 644 Bayesian Reliability Analysis (3) Prerequisites: ENRE 600 and ENRE 602. Foundations of Bayesian statistical inference, Bayesian inference in reliability, performing a Bayesian reliability analysis, Bayesian decision and estimation theory, prior distributions such as non-informative, conjugate, beta, gamma, and negative log gamma, estimation methods based on attribute life test data for estimating failure rates and survival probabilities. System reliability assessment and methods of assigning prior distribution. Empirical Bayes reliability estimates (implicitly or explicitly estimated priors).

ENRE 645 Human Reliability Analysis (3) Prerequisites: ENRE 600 and ENRE 602; or permission of department. Credit will be granted for only one of the following: ENRE 645, or ENSE 606. Methods of solving practical human reliability problems, the THERP, SLIM, OAT, and SHARP methods, performance shaping factors, human machine systems analysis, distribution of human performance. and uncertainty bounds, skill levels, source of human error probability data, examples and case studies.

ENRE 646 Maintainability Engineering (3) Role of maintainability in readiness and profitability. Design principles, including fault-tolerant design, FMECA for maintainability, maintainability quantification, establishing testability requirements, establishing hardware and software requirements, and reliability-centered maintenance.

ENRE 661 Microelectronics Device Reliability (3) Prerequisite: ENRE 600. This course develops an approach to continuous improvement of reliability of semiconductor devices. Topics covered include: Introduction to device technology, degradation mechanisms, optoelectronic components, power device reliability, and accelerated testing.

ENRE 670 Risk Assessment for Engineers I (3) Prerequisite: ENRE 602. Why study risk, sources of risk, probabilistic risk assessment procedure, factors affecting risk acceptance, statistical risk acceptance analysis, psychometric risk acceptance, perception of risk, comparison or risks, consequence analysis, risk benefit assessment. Risk analysis performed for light water reactors, chemical industry, and dams. Class projects on risk management concepts.

ENRE 671 Risk Assessment for Engineers II (3) Prerequisite: ENRE 670.The course covers advanced techniques for performing quantitative risk assessment. The fundamental theory of systems risk modeling, methods for vulnerability identification, risk scenario development, and probability assessment are presented. Also covered are methods for risk results presentation, and several example applications.

ENRE 681 Software Quality Assurance (3) Topics covered will include: QA roles in the software lifecycle, government and industry standards/methodologies, quality system scoring, quality system management, quality analysis metrics and tools for assessment. The principles of software configuration management, software testing, and maintenance will also be covered. A laboratory with software quality analysis tools is used.

ENRE 682 Software Reliability and Integrity (3) Prerequisite: ENRE 620 or permission of instructor. Defining software reliability, initiatives and standards on software reliability, inherent characteristics of software which determine reliability, types of software errors, structured design, overview of software reliability models, software fault tree analysis, software redundancy, automating tools for software reliability prototypes, and real time software reliability.

ENRE 683 Software Safety (3) The focus is on major software safety standards in government and industry, the software safety lifecycle, and detailed coverage in safety requirements-specification, analysis, and modeling, designing, coding, testing and maintenance. Also covered are hazard analysis and design, failure modes and effects analysis, fault tree analysis, designing for fault tolerance, and formal methods techniques for developing high assurance software. A laboratory with software tools is used.

ENRE 684 Information Security (3) This course is divided into three major components: overview, detailed concepts, and implementation techniques. The topics to be covered are: general security concerns and concepts from both a technical and management point of view, principles of security, architectures, access control and multi-level security, trojan horses, covert channels, trap doors, hardware security mechanisms, security models, security kernels, formal specifications and verification, networks and distribution systems and risk analysis.

Graduate Certificate in Engineering Courses

ENRE 600, ENRE 602, ENRE 620, and one of the following courses:
ENRE 653, ENRE 655, ENRE 641

ENRE 600 (ENRE 648T) Basic Reliability Engineering (3) Corequisite: ENRE 602. Organization, management and communication concepts in reliability engineering. Mechanisms and physics of failure, methods for failure-rate determination, methods of design for reliability, maintainability concepts, life cycle costing, equipment sparing policies, and measuring reliability for improvement.

ENRE 602 (ENRE 648S) Reliability Analysis (3) Principal methods of reliability analysis, including fault tree and reliability block diagrams, method of failure mode and effect analysis (FMEA); event tree construction and evaluation; reliability data collection and analysis; methods of modeling systems for reliability analysis. Focus on systems of concern to all engineers, such as, problems related to process industries, fossil-fueled power plant availability, and other subjects. Methods of quality control and assurance.

ENRE 655 Advanced Methods in Reliability Modeling (3) Bayesian methods and applications, estimation of rare event frequencies, uncertainty analysis and propagation methods, reliability analysis of dynamic systems, analysis of dependent failures, reliability of repairable systems, human reliability analysis methods, and theory of logic diagrams and application to systems reliability.