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A functional approach to systems configuration design with application to hydraulic systems.

机译：一种用于系统配置设计的功能性方法，并应用于液压系统。

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摘要

Configuration design is a type of design activity in which a set of pre-defined components are combined in certain ways to construct a system. A general framework for automated configuration design is developed in this dissertation.;In the proposed framework, design specifications are separated into functional requirements, performance goals, and constraints. Starting with functional requirements, a skeletal design comprising of essential functions is created. The functions in the skeletal scheme are then either mapped to physical devices to satisfy performance goals and constraints or decomposed into simpler sub-functions. The process of mapping functions to physical devices is thus interleaved with the function-decomposition process. The level at which a function is mapped to a physical device is directly related to the stringency of performance goals and constraints. Fundamental issues concerning the configuration design process such as function-sharing, granularity of design building blocks, and combinatorial explosion, are also addressed.;Based on the proposed framework, a prototype knowledge-based design tool called HYSYN (HYdraulics SYNthesizer) that automatically configures hydraulic systems was developed. Starting with design specifications, HYSYN identifies essential functions, constructs a functional configuration, performs quantitative inferences, and specifies appropriate catalog components and their interconnections. HYSYN's knowledge base contains a few domain-independent functions and a number of hydraulic catalog components and algorithms. Domain-independent algorithms have been developed for synthesizing a scheme of functions for power routing, sequence scheduling, and signal feedback looping. Domain-specific algorithms for catalog component selection have also been implemented. The HYSYN program is written in Common Lisp Object System and has been tested for configuration of hydraulic sequencing and synchronizing circuits with multiple inputs/outputs.;Although, the hydraulics domain investigated here is more modular than general mechanical systems, it is less modular than electronic circuits. The hydraulics domain thus serves as a middle ground between electronics and mechanical domains and is used as a testbed for this research in configuration design. In spite of its modularity, automated configuration of complex hydraulic circuits is by no means trivial. The methodology underlying the configuration design process can also be extended to other application domains as well such as general power transmission systems design.
机译：配置设计是一种设计活动，其中以某种方式组合了一组预定义的组件以构建系统。本文提出了一种用于自动配置设计的通用框架。在该框架中，设计规范分为功能需求，性能目标和约束。从功能需求开始，创建了包含基本功能的骨架设计。然后将骨架方案中的功能映射到物理设备以满足性能目标和约束，或者分解为更简单的子功能。因此，将功能映射到物理设备的过程与功能分解过程交错在一起。功能映射到物理设备的级别与性能目标和约束的严格性直接相关。还解决了与配置设计过程有关的基本问题，例如功能共享，设计构建模块的粒度和组合爆炸。基于该建议的框架，基于知识的原型设计工具HYSYN（HYdraulics SYNthesizer）可自动配置开发了液压系统。从设计规范开始，HYSYN识别基本功能，构建功能配置，执行定量推断并指定适当的目录组件及其互连。 HYSYN的知识库包含一些与领域无关的功能以及许多液压目录组件和算法。已经开发了与域无关的算法，用于合成电源路由，序列调度和信号反馈循环的功能方案。用于目录组件选择的特定领域算法也已实现。 HYSYN程序是用Common Lisp Object System编写的，并且已经过测试以测试具有多个输入/输出的液压定序和同步回路。;尽管这里研究的液压领域比通用机械系统更具模块化，但与电子系统相比模块化程度更低电路。因此，液压领域是电子领域和机械领域之间的中间地带，并被用作配置设计研究的试验台。尽管具有模块化功能，但复杂的液压回路的自动配置绝非易事。配置设计过程的基础方法也可以扩展到其他应用领域，例如通用电力传输系统设计。

著录项

  • 作者

    Lee, Chun Liang.;

  • 作者单位

    University of Michigan.;

  • 授予单位 University of Michigan.;
  • 学科 Engineering Mechanical.
  • 学位 Ph.D.
  • 年度 1992
  • 页码 197 p.
  • 总页数 197
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 机械、仪表工业;
  • 关键词

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