装配式建筑PC构件产销一体化管理系统研究

混凝土预制(Precast Concrete,PC)构件是装配式建筑主体结构的基础,提升其生产的智能化、信息化水平尤为关键。文章以PC构件厂的生产管理模式和普遍管理现状为研究对象,基于PC构件生产线模式的需求分析,设计管理系统的基本组成架构、静态和动态信息模块,完成管理系统的开发。通过订单跟踪和生产管理在管理系统中的集成,完成PC构件的多品种、小批量生产的一体化管理;并基于数字孪生模型与PC构件生产设备之间的信息交互,实现订单跟踪的可视化管理。结果表明:管理系统通过对PC构件的订单跟踪和质量管理,可实现订单数据的全面分析和精细化管理,并有效提升生产效率和决策管理水平。

PC生产线自动布料机研究

混凝土预制件(Precast Concrete,PC)生产线是支撑建筑产业工业化和现代化发展的关键装备,布料机是PC生产线的核心设备,对生产线的自动化程度、可靠性、工作效率及构件质量有着决定性影响。通过研究自动布料机布料装置和控制系统,提供一种切实可行的自动布料解决方案,同时指出布料机未来的发展方向。

Configuration knowledge modeling of customizable products based on semantic web technologies

In order to solve the problem of modeling product configuration knowledge at the semantic level to successfully implement the mass customization strategy, an approach of ontology-based configuration knowledge modeling, combining semantic web technologies, was proposed. A general configuration ontology was developed to provide a common concept structure for modeling configuration knowledge and rules of specific product domains. The OWL web ontology language and semantic web rule language （SWRL） were used to formally represent the configuration ontology, domain configuration knowledge and rules to enhance the consistency, maintainability and reusability of all the configuration knowledge. The configuration knowledge modeling of a customizable personal computer family shows that the approach can provide explicit, computerunderstandable knowledge semantics for specific product configuration domains and can efficiently support automatic configuration tasks of complex products.

CASE-BASED PRODUCT CONFIGURATION AND REUSE IN MASS CUSTOMIZATION

The increasing complexity and size of configuration knowledge bases requres the provisionof advanced methods supporting the development of the actual configuration process and design reuse.A new framework to find a feasible and practical product configuration method is presented in masscustomization. The basic idea of the appoach is to integrate case-based reasoning (CBR) with a con-straint satisfaction problem(CSP). The similarity measure between a crisp and range is also given,which is common in case retrieves. Based on the configuration model, a product platform and customerneeds, case adaptation is carried out with the repair-based algorithm. Lastly, the methodology in theelevator configuration design domain is tested.

TECHNOLOGY AND APPLICATION OF PRODUCT EVOLUTIONARY DESIGN BASED ON CONFIGURATION IN MASS CUSTOMIZATION MODE

Product customization has been recognized as an effective means to implement mass cus-tomization （MC）. A new theory and method for MC-oriented evolutionary design of configuration product is presented based on the study of developing law of evolutionary design in integrated envi-ronment, which focuses on the innovation and reuse properties of configuration product. The key technologies for general requirement modeling in quick response to customer requirement, multi-level stepwise configuration optimization driven by customer requirement and evolutionary deduction of product variable structure based on configuration association are thoroughly investigated. The suc-cessful application of the presented method in the development of real-life products demonstrates its utility, flexibility and robusticity.

Extended Object Model for Product Configuration Design

This paper presents an extended object model for case-based reasoning （CBR） in product configuration design. In the extended object model, a few methods of knowledge expression are adopted, such as constraints, rules, objects, etc. On the basis of extended object model, case representation model for CBR is applied to product configuration design system. The product configuration knowledge can be represented by the extended object. The model can support all the processes of CBR in product configuration design, such as case representation, indexing, retrieving, and case revising. The presented model is an extension of the traditional object-oriented model by including the relationship class used to express the relation between the cases, constraints class used in the product configuration knowledge representation, index class used in ease retrieving, and solution class used in case revising. Therefore, the product configuration knowledge used in the product configuration design can be represented by using this model. In the end, a metering pump product configuration design system is developed on the basis of the proposed product configuration model to support customized products.

Study on an Configuration Framework for Product Family

In implementing mass customization, how to respond rapidly to customers’ requirements is a key problem. Configuration design is considered effective in early stage of product design. This paper studies a configuration method based on constraints and fuzzy decision for product family. The configuration method is evolved from constraint based product configuration. It employs fuzzy optimum selection in the reasoning process, which can select similar components when customers’ requirements can not be met precisely. In the configurator, product family is represented with GBOM(Generic Bill Of Material) and ACL(Article Characteristic List). Every node of GBOM has an ACL to list all instances of a component family. Constraints are attached to every node, which involves variable definition and constraints definition. In the reasoning process, constraint satisfaction and fuzzy optimum selection interact to search optimum solution. A prototype is developted to demonstrate how to run the configurator. The paper ends with a discussion of advantages, future work of the configuration method.

REQUIREMENT PRODUCT CONFIGURATION IN MASS CUSTOMIZATION

On the basis of researching on requirement product configuration in mass customization, the concept of product family requirement class （PFRC） and requirement-matching template are put forward. A case-based requirement product configuration （CB-RPC） model and corresponding requirement product model are established. The result of requirement product configuration is obtained by using the method of two-level similar matching. In addition, the effect of the method on requirement responding is analyzed. Finally, the model and the method given are applied in elevator industry, and have improved the enterorise＇s ability of rapid responding to customer＇s reouirements.

A Domain Engineering Approach to Increase Productivity in the Development of a Service for Changes Notification of the Configuration Management Database

This paper presents a domain engineering approach to build a software product line that supports the change notification service in a Configuration Management Database (CMDB) according to the Information Technology Infrastructure Library (ITIL) best practices. For the development of this product line, the proposed approach makes use of a construction of products methodology by analogy: this is a new notation which reports the variability of the products, obtaining metrics as important as the number of products and uses a language that enables, by means of the flexibilization of a product and the development of some generators, to build the rest of the product line. In addition the paper offers a standard for the analysis and design of the CMDB as well. Finally, the paper presents an economic model for the product line, where the profitability and productivity of the proposed solution are analyzed.

Customer-oriented Configuration Model for Modular MechatronicProducts: Application in Industrial Robot Design

The contradiction between manufacturing costs and customer demand of mechatronic products can be balanced by configuration design. The article proposes a customer-oriented configuration model for modular mechatronic products which makes up the shortfall in meeting customer needs for the traditional configuration de- sign mode. The elements of the modular mechatronic products configuration model including module, module connection and configuration knowledge are analyzed. And a formal representation method for configuration model elements combining with their characteristics is given. Based on the above research, an abstract configuration model of modular mechatronic products is designed. Finally, an industrial robot is used as an application exam- ple to build a customer-oriented industrial robot configuration model.

Reconfigurable Modeling Technology of Similar-structure Products Configuration Design

The product configuration modeling is a key technology to realize configuration design. Most of the researches were mainly conducted focusing on how to establish a product configuration model, but were short of the consideration about the application scope and dynamic change features. In this paper, the reconfigurable modeling technology of similar-structure products configuration design is studied to enhance the generality and diversity of product configuration models, and to facilitate the dynamic upgrade of configuration models. The configuration components of products with similar structures are divided into sharable configuration components, essential configuration components and optional configuration components, so the construction of reconfigurable model of configuration design can be converted into the set operation of configuration components. The horizontal adjusting reconstruction of configuration model is carried out through the adding, replacing and deleting of configuration components, the vertical adjusting reconstruction of configuration model is carried out through the parametric deformation of configuration components, and the variable topological configuration model reconstruction can be realized through the transformation of partial structure of configuration components. Finally, NC machine products are used as an example to analyze and verify the reconfigurable modeling technology of products with similar structures. The speed of NC machine configuration design is found to be improved, and the number of NC machine configuration design models is decreased. And the reconfigurable design system of NC machine products is developed. The proposed modeling technology provides references for the processes, methods and steps of model reconstruction.

Research on Web-Based Product Structure and Configuration Management

An enhanced system architecture of Web-based product structure and configuration management system along with its, functions are is presented. The key techniques, such as construction of object models of product structure and product configuration, hybrid approach method in product configuration management, sharing and integration of heterogeneous product data, integration with other sub-systems, are discussed too. A prototype system is developed by J2EE technology.

A Case Retrieval Projection Pursuit Model for Configuration Design of a Product Family

The paper studies on case-based reasoning of uncertain product attributes in configuration design of a product family. Interval numbers characterize uncertain product attributes. By interpolating a number of certain values randomly to replace interval numbers and making projection pursuit analysis on source cases and target cases of expanded numbers, we can get a projection value in the optimal projection direction. Based on projection value, we can construct a case retrieval model of projection pursuit that can handle coexisting certain and uncertain product attributes. The application examples of chainsaw configuration design show that case retrieval is highly sensitive to reliable results.

新型装配式建筑PC构件生产与施工技术探讨

目前,装配式建筑在中国是一个比较新兴的建设类型,其预制构件都是由统一的工业化生产,因此具有不受天气环境限制、节能环保、节省材料、减少人力、缩短工期等结构特点,已成为了我国大力发展的建筑形式。该文结合工程实例,从装配式建筑的角度,介绍PC构件的生产工艺以及施工中需要注意的问题和质量修补措施,为类似工程提供借鉴。

Research on customer-oriented product configuration technology of aircraft

Due to the defects of current aircraft product configuration technology, such as the gap between product design and cus- tomers＇ requirements, the low configuration efficiency and etc. a customer-oriented product configuration solution of aircraft was proposed in this paper. Basing on a deep investigation into the market and the structure of the aircraft, this paper proposed a method of dividing and creating the aircraft options, in which we set up optional constraints to meet the demand of configuration and then optimized the constraint algorithm. This work can help to realize the optimum association between the aircraft options and modules. Basing on a research on customer demand, The paper established a customer demand model and a mapping relationship which exists between customer demand and aircraft options, It can also help to make a great contribution to build customer personalized demand of the aircraft configuration orocess and the aircraft confimiration library.

ACCES I／O Products公司PC／104多用途板

ACCES I／O Products推出最新PC／104板，型号为104-1132．4RO。这是一款36通道PC／104多用途板，具有32个带有状态改变中断产生功能的视觉上完全隔离的数字输入和四个机电式继电器输出。该板据称可提供到各种装置的连接，包括传感器、开关、控制器和供电电路。这些输入可由3V到31V（或专门定制更高电压）直流源驱动，或由频率为40Hz到10KHz的交流源驱动。将数字输入相互之间并与计算机从视觉上隔离开，确保了在充满噪声的实际工业环境中平滑无差错的数据传输。

装配式建筑PC构件生产及施工技术要点

文章以杭政储出[2018]15号地块商品住宅项目为例,通过对该项目的概况进行介绍,重点分析PC构件生产中的墙板安装,支撑固定、构件连接及混凝土浇筑养护的施工技术要点,并针对PC构件的运输与安装等施工方法提出优化措施,以促进我国装配式建筑更好地发展。

装配式PC构件模台清理/喷油/划线一体化装置及其施工方法

建筑工业化是行业发展的必然趋势,可有效解决建筑行业劳动力不足的现状,缩短工期,提高工程效率,提高PC构件的质量和性能。目前国内多家公司已在实施PC构件自动化生产模式的开发,通过工程实例介绍了PC构件生产中的模台清理、喷油和划线复合工序的自动化生产工艺及装置并详细介绍了生产过程。总结的经验可供今后类似工程借鉴。

集约式PC生产线的设计及应用

预制构件是实现建筑装配式的基础,传统的预制构件生产线投资较高,已成为制约装配式建筑发展的关键因素之一。从集约式PC生产线总体方案、设备方案、工艺流程等方面入手,分析了叠加模台、堆垛机、十字摆渡车、拆垛机及养护窑等设备的差异,通过改变模台大小、优化码垛方式及养护方式建立总体方案,实现了PC生产线的集约化、低成本化。实践表明,该生产线方案具有可行性,能够节省空间,提高效率,减少投资,符合PC生产线的发展趋势。