A New Simulation Method for System Dependability Analysis

一种新的系统可靠性分析仿真方法

• 批准号: 9060230
• 负责人: Allen Johnson
• 金额: $ 4.93万
• 依托单位: Rainbow Analysis Systems Group, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-01 至 1991-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9060230&HistoricalAwards=false
• 关键词: New; Simulation; Method; System; Dependability

Today's complex system environment and competitive economic environment demand precise answers to questions concerning dependability and quality. Current tools are not providing the ability to model complex fault handling scenarios and often require simplifying assumptions about failure rates, repair rates, and initial states which lead to incorrect solutions. Accurate dependability evaluations are a concern of both manufacturers and users of systems who often invest millions of dollars to keep systems operating correctly. A dependability tool that can address these concerns is in demand in both the commercial and military environments. The development of a simulation tool based on Rainbow Nets is investigated. Rainbow Nets overcome limitations of previous net-based models by significantly reducing the model complexity. This reduction is achieved by hierarchical tokens, which can be created, destroyed, and have identities and features, and by transitions whose activation is governed by a set of rules or an algorithm.

当今复杂的制度环境和竞争激烈的经济 环境要求准确回答有关问题 可靠性和质量。 目前的工具不提供 能够模拟复杂的故障处理场景，通常需要 简化故障率、维修率、 和导致不正确解的初始状态。 准确 可靠性评估是制造商和 系统用户经常投资数百万美元来维护系统， 操作正确。 可靠性工具可以解决这些问题 在商业和军事领域都有需求， 环境. 基于Rainbow的仿真工具的开发 网被调查。 Rainbow Nets克服了以前 通过显著降低模型复杂性来实现基于网络的模型。 这种减少是通过分层令牌来实现的， 创造，毁灭，有身份和特征， 其激活由一组规则或 算法