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Data Analysis and Knowledge Discovery  2018, Vol. 2 Issue (2): 29-36    DOI: 10.11925/infotech.2096-3467.2017.0897
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Acquisition Method of Design Process Knowledge in Conceptual Design
Yang Liu1(), Fu Zhu2,3, Wang Yuefen3,4
1(School of Mechanical Engineering,Nanjing University of Science and Technology, Nanjing 210094, China)
2(School of Enterprise Management, Hohai University, Changzhou 213022, China)
3(School of Economics and Management, Nanjing University of Science and Technology, Nanjing 210094, China)
4(Jiangsu Collaborative Innovation Center of Social Safety Science and Technology, Nanjing 210094, China)
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Abstract  

[Objective] This paper proposes a new knowledge acquisition method for conceptual design process, aiming to improve the modular modeling and representation, as well as effectively manage and reuse dynamic knowledge. [Methods] First, we analyzed the design process knowledge acquisition from the perspective of content. Then, we designed a knowledge acquisition experiment with the help of interviews and the double-layer flow acquisition template. Finally, we obtained the implicit design process knowledge in organization by interviews, which was modularized by the double-layer flow acquisition template. [Results] We used the conceptual design process of a recoil brake part as case to retrieve the initial design process knowledge. The design flow knowledge, which was organized and normalized by acquisition template of the standardized design flow, was dismantled and packaged by acquisition template of the design step. [Limitations] Both the experiment and data analysis were conducted manually, which posed negative effects to the efficiency. [Conclusions] The proposed method could effectively obtain the tacit and dynamic design process knowledge from conceptual design.

Key wordsConceptual Design      Design Process Knowledge      Knowledge Acquisition      Conversational Method      Flow Acquisition Template     
Received: 07 September 2017      Published: 07 March 2018
ZTFLH:  TP182 G35  

Cite this article:

Yang Liu,Fu Zhu,Wang Yuefen. Acquisition Method of Design Process Knowledge in Conceptual Design. Data Analysis and Knowledge Discovery, 2018, 2(2): 29-36.

URL:

http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/10.11925/infotech.2096-3467.2017.0897     OR     http://manu44.magtech.com.cn/Jwk_infotech_wk3/EN/Y2018/V2/I2/29

访谈日期 访谈对象 访谈地点
访谈部件及主题:
(明确双方访谈的对象, 如复杂产品的某一具体部件)
访谈目的: (实施此次访谈的目的)
待解决的问题: (实施实验前访谈者自拟需要解决的问题)
访谈记录: (整理访谈过程中的要点)
访谈结果: (是否达到预期目标, 解决了哪些问题及相关体会)
建议:
签名:
记录日期 设计对象名称
存在的问题
设计活动编号 设计活动名称 输入参数 输出参数 设计约束
步骤编号
步骤功能
输入参数 参数来源 设计约束 功能算法 输出参数
记录日期 XX年XX月XX日 设计对象名称 某制退机
存在的问题 基本满足实验目标。
活动编号 活动名称 输入参数 输出参数 设计约束
XX_ZTJSJ_1 计算制退机工作长度L λmax——最大后坐长度;
d——口径;
k1——制退杆活塞长度计算系数;
e——考虑装配误差及极限射击条件而保留的余量。
l——制退杆活塞长度;
L——制退机工作长度。
k1一般
取值范围
0.5~0.7
XX_ZTJSJ_2 计算活塞工作面积A0 λmax——最大后坐长度;
e——考虑装配误差及极限射击条件而保留的余量;
E——自由后坐能量;
α——估算系数。
Wy——制退机液量;
A0——活塞工作面积。
步骤编号 ZTJBZ_001
组件功能 计算制退机工作长度L
输入参数 参数来源 设计约束 功能算法 输出
λmax——最大后坐长度 用户输入 L=λmax+l+2e

l=k1×d
l——制退杆活塞长度
d——口径 用户输入 L——制退机工作长度
k1——制退杆活塞长度计算系数 用户输入 0.5~0.7
e——考虑装配误差及极限射击条件而保留的余量 用户输入
步骤编号 ZTJBZ_002
组件功能 计算制退机活塞工作面积A0
输入参数 参数来源 设计约束 功能算法 输出
λmax——最大后坐长度 ZTJBZ_001 ${{w}_{y}}=\frac{E}{\alpha }$
${{A}_{0}}=\frac{{{w}_{y}}}{{{\lambda }_{\max }}+2e}$
wy——制退机液量
e——考虑装配误差及极限射击条件
而保留的余量
ZTJBZ_001 A0——活塞工作面积
E——自由后坐能量 用户输入
α——估算系数 用户输入
步骤编号 ZTJBZ_003
组件功能 计算制退筒内径DT
输入参数 参数来源 设计约束 功能算法 输出
A0——活塞工作面积 ZTJBZ_002 ${{D}_{T}}=2y\sqrt{\frac{{{A}_{0}}}{\pi ({{y}^{2}}-1)}}$ DT ——制退筒内径
y ——经验系数 用户输入
步骤编号 ZTJBZ_004
组件功能 计算制退筒外径dT
输入参数 参数来源 设计约束 功能算法 输出
A0——活塞工作面积 ZTJBZ_002 ${{d}_{T}}=2y\sqrt{\frac{{{A}_{0}}}{\pi ({{y}^{2}}-1)}}$ dT ——制退筒外径
y ——经验系数 用户输入
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