safety critical systems and engineering design cardiac and blood related devices

Ngày tải lên: 23/03/2014, 23:20

... Dennis M The engineering design of systems: models and methods/Dennis M Buede – 2nd ed p cm – (Wiley series in systems engineering and management) Includes bibliographical references and index ISBN ... Overview, and Basic Knowledge Introduction to Systems Engineering Overview of the Systems Engineering Design Process Modeling and SysML Modeling Discrete Mathematics: Sets, Relations, and Functions ... of systems engineering in industry, and six years developing a course on the engineering design of systems During the development of this book, I found that many engineers did not understand systems...

Ngày tải lên: 03/04/2014, 12:22

... editor 764 S safety actual degree 584 estimated degree 583 safety analysis 534, 537, 565 safety consequences 559 safety criticality 530 safety criticality analysis 650, 651, 654, 661 safety criticality ... 586 safety engineering 532 safety function 557, 558 safety intent specification 531 safety margin 20, 31, 67, 71, 72, 108, 416 safety protection system 616 safety risk 655 safety system 89, 688 safety ... 616, 634, 687, 694 logic and event symbols 546 safety and risk assessment 90 safety systems design 615 steps 88 FBC see feature-based costing FDQ see failure definition and quantification FEA see...

Ngày tải lên: 02/07/2014, 10:20

... Handbook of Reliability, Availability, Maintainability and Safety in Engineering Design Rudolph Frederick Stapelberg Handbook of Reliability, Availability, Maintainability and Safety in Engineering ... engineering design integrity implies determining reliability, availability, maintainability and safety design criteria of the design s inherent systems and related equipment The tools that most design ... Rudolph Frederick Handbook of reliability, availability, maintainability and safety in engineering design Reliability (Engineering) Maintainability (Engineering) Industrial safety I Title 620’.0045...

Ngày tải lên: 02/07/2014, 10:20

... blackboard model for engineering design integrity (ICS 2003) 728 AIB blackboard model with systems modelling option 729 Designing for safety using systems modelling: system and assembly ... 730 Designing for safety using systems modelling 731 Treeview of systems hierarchical structure 732 Technical data sheets for modelling safety ... model and the process simulation model 488 Systems selection in the blackboard model 489 Design equipment list data in the blackboard model 490 Systems...

Ngày tải lên: 02/07/2014, 10:20

... functions and their related equipment Integrity of engineering design therefore includes the design criteria of reliability, availability, maintainability and safety of these systems and equipment ... functions and their related equipment The integrity of engineering design therefore includes the design criteria of reliability, availability, maintainability and safety of systems and equipment The ... large engineering systems, their engineering integrity needs to be determined Engineering integrity includes reliability, availability, maintainability and safety of inherent systems functions and...

Ngày tải lên: 02/07/2014, 10:20

... algorithms, and compliance to specific design criteria, relevant to each level of systems hierarchy of the designs In this manner, integrated systems and related equipment are continually evaluated for design ... design compatibility and integrity throughout the engineering design process, particularly where designs of large systems give rise to design complexity and consequent high risk of design integrity ... of failure, failure criticality, failure models, risk and safety • Reliability analysis: reliability theory, methods and models, reliability and systems engineering, control and prediction • Availability...

Ngày tải lên: 02/07/2014, 10:20

... design reviews throughout the engineering design process on the basis of concurrent design in an integrated collaborative engineering design environment Engineering designs are composed of highly ... result in superior designs Creating concurrent design systems for engineering designers requires knowledge of downstream activities to be infused into the design process so that designs can be generated ... collaborative design) Such a design process allows various groups of design engineers to work on parts of a design problem independently, using their own expert systems, and accessing the expert systems...

Ngày tải lên: 02/07/2014, 10:20

... complex engineering systems (Blandford et al 1999); R.L Pattison and J.D Andrews in their use of genetic algorithms in safety systems design (Pattison and Andrews 1999); D Cvetkovic and I.C Parmee ... 36 Design Integrity and Automation for complex systems analysis and engineering design (Tang and Salminen 2001); X Du and W Chen in their extensive modelling of robustness in engineering design ... Chapter Design Integrity and Automation Abstract The overall combination of the topics of reliability and performance, availability and maintainability, and safety and risk in engineering design...

Ngày tải lên: 02/07/2014, 10:20

... three terms, can practically and logically be applied to the different phases of engineering design, such as conceptual design, preliminary or schematic design, and detail design The techniques for ... engineering design would be to reduce the overall procurement and operational costs, and to increase the operational availability and physical reliability of most engineering systems and processes ... of the engineering design process Thus, in order to develop the most applicable and practical methodology for determining the integrity of engineering design at different stages of the design...

Ngày tải lên: 02/07/2014, 10:20

... probability and consequence of systems failure is related to process reliability and criticality at the higher systems levels (i.e process and system level) that is established in the design s systems ... conservative and move towards higher predicted levels of design reliability, or to rely on previous designs where the individual process systems on their own were adequately designed and constructed ... conceptual and preliminary design phases The following cost estimate accuracies for each engineering design phase are considered typical: • Conceptual design phase: plus or minus 30% • Preliminary design...

Ngày tải lên: 02/07/2014, 10:20

... require a significant amount of engineering and drafting effort are the systems and sub -systems that will be designed, built and tested, requiring detailed drawings and specifications In most engineered ... between systems, equipment, assemblies and components (not to mention devices and machines) needs to be made, in order to properly accommodate reliability predictions in engineering design reviews ... distinction is based upon the essential study and application of systems engineering analysis Systems engineering analysis is the study of total systems performance, rather than the study of...

Ngày tải lên: 02/07/2014, 10:20

... Reliability and Performance in Engineering Design 77 3.2.2.3 Equipment Aging Models A critical need for high reliability has particularly existed in the design of weapons and space systems, where ... detail phases of the engineering design process FMEA is a systematic approach to reduce criticality and risk, and a useful tool to establish priority for design improvement in designing for reliability ... relevant hierarchical levels, and define systems and equipment Establish ground rules and assumptions, i.e operational phases Describe systems and equipment functions and associated functional blocks...

Ngày tải lên: 02/07/2014, 10:20

... Maintainability in Engineering Design b) Fault-Tree Analysis and Safety and Risk Assessment The main use of fault trees in designing for reliability is in safety and risk studies Fault trees provide ... engineering design process, including not only the different engineering disciplines but quality assurance, reliability and maintainability specialists, systems engineering, logistics support, system safety, ... representation of the different failure paths, and this can lead to safety and risk assessments of systems and processes even without considering failure and repair data—which does cause some difficulties...

Ngày tải lên: 02/07/2014, 10:20

... operation In most engineering installations, particularly with the integration of complex systems, the purpose of determining 98 Reliability and Performance in Engineering Design equipment criticality, ... μ 1− ˚ β 1/β (3.54) 3.2 Theoretical Overview of Reliability and Performance in Engineering Design 99 The standard deviation The standard deviation, σT , of the two-parameter Weibull is given ... 94 Reliability and Performance in Engineering Design or, if it is expressed in terms of the failure rate, λ f (t, λ ) = λ e−λ t , (3.37) R(t, λ ) = e−λ t , (3.38) and the reliability function...

Ngày tải lên: 02/07/2014, 10:20

... is to assure a reliable design throughout the engineering design process Parallelism is the prime concept in concurrent engineering design, and design integrity (i.e designing for reliability) ... most reliable design 108 iii iv v vi Reliability and Performance in Engineering Design Conceptual design optimisation and Comparison of conceptual designs Labelled interval calculus and Labelled ... each specific stage of the design process, whether it is conceptual design, preliminary design or detail design respectively 112 Reliability and Performance in Engineering Design The approach defines...

Ngày tải lên: 02/07/2014, 10:20

... Elimination condition 1: (only X1 ) and (only X2 ) and Not (X1 ∩ X2 ) 118 Reliability and Performance in Engineering Design Elimination condition 2: (only X1 ) and (every X2 ) and Not (X2 ⊆ X1 ) Elimination ... condition 3: (only X1 ) and (only X2 ) and (X2 ⊆ X1 ) Redundancy condition 4: (some X1 ) and (only X2 ) and (X2 ⊆ X1 ) Redundancy condition 5: (some X1 ) and (some X2 ) and (X2 ⊆ X1 ) Consider ... 1: (only X) and (only Y ) and G ⇒ (only Range (G, X , Y )) Propagation rule 2: (every X) and (every Y ) and G ⇒ (every Range (G, X , Y )) Propagation rule 3: (every X ) and (only Y ) and state...

Ngày tải lên: 02/07/2014, 10:20

... Reliability and Performance in Engineering Design Multi-objective optimisation of conceptual design problems can be computed by applying LIC inference rules, which draw conclusions about the sets of systems ... of nominal stress interval (3.85) 128 Reliability and Performance in Engineering Design Computation: propagation rule 1: (only X ) and (only Y ) and G ⇒(only Range (G, X , Y )) xi j [corners (HSL, ... Reliability and Performance in Engineering Design The data point xi j approaching the lower limit interval, with xi j in the range (Max Capacity Level, Min Capacity Level, Nom Capacity Level), and xi...

Ngày tải lên: 02/07/2014, 10:20

... can lead to safety and risk assessments of systems and processes, this technique will be considered in greater detail in Chap 5, Safety and Risk in Engineering Design Thus, only FMEA and FMECA ... Reliability and Performance in Engineering Design design during the preliminary or schematic design phase are failure modes and effects analysis (FMEA), failure modes and effects criticality ... reliability -critical items is implemented during the 3.3 Analytic Development of Reliability and Performance in Engineering Design 135 engineering design process, particularly during preliminary design...

Ngày tải lên: 02/07/2014, 10:20

... of uncertainty in engineering design analysis 3.3 Analytic Development of Reliability and Performance in Engineering Design 145 a) The Concept of Uncertainty in Engineering Design Analysis Introducing ... level of analysis and modelling techniques related to the design As the level of abstraction of the design changes, and more and more detail is required to define it, the number of design variables ... available to the designer is based upon analysis, mathematical modelling and simulation As engineering systems become more complex, and greater demands are placed upon their performance and cost, this...

Ngày tải lên: 02/07/2014, 10:20