| 向明,王德伦,吴南星.混联液压系统通断特征知识表达模型及其分解规则[J].,2018,58(6):564-572 |
| 混联液压系统通断特征知识表达模型及其分解规则 |
| Knowledge representation model of hybrid hydraulic system based on switch characterization and rule of decomposition |
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| DOI：10.7511/dllgxb201806003 |
| 中文关键词:概念设计选型设计知识表达特征单元液压系统 |
| 英文关键词:conceptual designtype selection designknowledge representationcharacteristic-unitshydraulic system |
| 基金项目:国家科技支撑计划资助项目(2014BAF12B05). |
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| 摘要点击次数:888 |
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| 中文摘要: |
| 用通断特征矩阵表达混联液压系统初始设计要求进而形成阀体单元的知识表达模型，通过通断特征矩阵的分解与匹配操作来完成方向控制阀的概念设计．方向控制阀是混联液压系统液流控制的基本单元，通过实际模型中方向控制阀的通断特征建立基本单元库，并制定出特征矩阵串、并、混联运算规则．遵循特征矩阵的串、并、混联运算规则，初始矩阵被分为一系列子矩阵，通过子矩阵与单元库基本元素匹配完成液压系统方向控制阀的选型，将所有阀体组合可完成液压系统设计．整个特征矩阵分解与匹配过程便于编程实现，为混联液压系统计算机辅助设计提供了一种知识表达模型与运算方法，并通过实例验证了该方法的有效性和可行性． |
| 英文摘要: |
| The switch characterization matrix is used to express the initial design requirements of hybrid hydraulic system and develop the knowledge representation model of units of valves, then the conceptual design of the directional control valves is deduced by the decomposition and matching of the switch characterization matrix. The directional control valves are the minimum unit for flow control of hybrid hydraulic system. The basic unit library is obtained by switch characterization of directional control valves in practical model, then the serial, parallel and hybrid rules of characterization matrices are defined. According to these rules, the initial matrix can be decomposed into a serial of sub-matrices, and the type selection design of the directional control valves is obtained by matching the sub-matrices with the element in unit library. Therefore, the design of hydraulic system can be achieved by assembling those valves. The decomposition and matching of characterization matrix can be programmed. It provides a knowledge representation model and operation method for computer aided design of hybrid hydraulic system. The feasibility and availability of the proposed method are testified by example. |
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