The invention discloses a method and a device for performing optimization on a delivery system. The method comprises steps of constructing a delivery model on the basis of practical delivery data of a delivery system, determining at least one group of order parameters to be simulated, wherein the order parameters at least comprise order stress and transport capacity, performing simulation optimization on the delivery model on the basis of at least one group of order parameters to be simulated, determining a delivery coefficient of the delivery model, determining a corresponding relation between the order parameter and the delivery coefficient according to at least one group of order parameters to be simulated and the corresponding delivery coefficient, and adjusting the delivery coefficient of the delivery system on the basis of the practical order parameter and the corresponding relation. The method of the invention determines the delivery model coefficients matched with the different scenes through the model simulation, optimizes the practical delivery system and realizes the quick optimization on the delivery system.

Method and device for performing optimization on delivery system

Capítulo 8. Mobiability : a european standard on support measures in the EHEA for International Students with Disabilities

The present paper deals with the problem of CAD (computer-aided design) competence formation of would-be teachers of technology and vocational school teachers. It is noted that for fashion industry to develop, it is necessary that its professionals should have both the knowledge of basic communication technologies and foundations of using CAD. ICT competence is necessary for trainee teachers of technology and vocational education specialists both for their educational activity and for successful creation of outfit models using computer techniques. The aim of the research lies in grounding the list of software equipment to be used by trainee teachers of technology and vocational school teachers to provide effective learning of CAD in professional sphere. The introduction to professional-oriented software is realized in higher education institutions of Ukraine during the course of “Basics of computer aided design”, after a preparatory course “Information Technologies” Information technologies are used in fashion industry for creating new models, equipment management, and for maintaining the life cycle of outfits. Hereby presented is a systemized list of computer software tools for professional purposes to be used in automated workstation of the designer: software tools for correct and safe system component management; software for file creation and information sharing; CAD-subsystems. The content of the course “Basics of computer aided design” have been described. Practical approbation has proved effectiveness of the developed syllabus along with the methodological support of the course “Basics of computer-aided design”. The results of the investigation are important for grounding the content of study for trainee teachers of technology and specialists of vocational education, as well as for professionals in fashion industry.

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Development of technology education students’ ict competence while teaching computer-aided fashion design

New tools are needed to support CAD course reform efforts. These reforms aim to increase the development of strategic knowledge and modeling skills within CAD competency, and their implementation requires better structured and more frequent assessment and feedback. In particular, formative assessment and formative feedback are essential. Unfortunately, within CAD education, dedicated techniques and tools are not yet available to support the implementation of formative assessment, and, in particular, to assist learning goal and outcomeoriented assessment of CAD models produced by students. The aim of the current paper is two-fold. Firstly, it strives to present a novel approach for parametric feature-based solid model assessment in the educational context. This is based on deficiency analysis in relation to learning outcomes. Secondly, it reports on the implementation and application of a newly developed software tool module to enable and put into practice this novel CAD model assessment approach. The new module will be combined with a module for surface CAD model assessment to form an integrated semi-automatic software tool that is aimed at supporting assessment of both parametric feature-based solid models and surface models.

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Parametric Feature-Based Solid Model Deficiency Identification to Support Learning Outcomes Assessment in CAD Education

The invention is applicable to the technical field of workshop production planning management, and provides a hybrid genetic algorithm-based MES (Manufacturing Execution System) production planning and scheduling method. According to an order priority generation mode and/or random generation mode, a workshop task sequence which meets constraint relations between tasks and a genetic algorithm coding rule is generated for a preset number of initial scheduling schemes; according to the best task starting and ending time and according to one or more distribution combination modes in resource load balancing principle distribution and random distribution, execution resources are set for each workshop task in the preset number of initial scheduling schemes; the preset number of initial scheduling schemes are converted into a series of chromosomes through a coding process to serve as an initial population for the hybrid genetic algorithm; and the initial population is introduced to the hybrid genetic algorithm, and a scheduling result after optimization is calculated according to a preset optimization target. High efficiency of the MES production planning and scheduling results in the prior art is improved.

Hybrid genetic algorithm-based MES (Manufacturing Execution System) production planning and scheduling method

The invention discloses a logistic center cargo delivery routing problem eM-Plant simulation method. The logistic center cargo delivery routing problem eM-Plant simulation method specifically comprises the steps of firstly certainly knowing a logistic center operation pattern, and specifically performing analysis by taking certain logistic enterprises as objects and taking cargos to be delivered within a range of 10 thousand square kilometers as research objects; defining and analyzing vehicle routing problems with time windows, and mainly making researches on a single distribution center, multiple clients, different demands, time and places, different cargo quantities and different vehicle models; modeling the vehicle routing problems with the time windows, and performing modeling and classification and analysis of constraint conditions by adopting operational research and the like; performing simulation modeling analysis oriented to specific objects and performing modeling analysis in considerations of various factors such as required cargo delivery places and time to the objects, traffic conditions and weather; modeling by using eM-Plant. The simulation model is divided into four parts, including a user interface, an information flow layer, a visualized logistic layer and a simulation data analysis layer.

Logistic center cargo delivery routing problem eM-Plant simulation method

With research direction refinement and information globalization, knowledge economy puts forward higher requirements to high-level talents. University education is very important to cultivate high-level talents. For students of mechanical-related majors, the cultivation of college students’ comprehensive application ability has become an important problem to be solved urgently. In view of current CAD comprehensive training of college students, environment for engineering reality is provided difficultly. This paper sets the development of “Standard Parts Library of Rolling Bear Based on SolidWorks” as an example to illustrate that mechanical engineering students make teamwork and collaboration to complete the standard library research and development and cultivate their CAD comprehensive ability in research project. Through the application of practice, we find that the proposed training method can not only be applied to senior students, but also to lower grade college students, and it also creates a new educational model in cooperative environment.

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CAD Education of College Students with Engineering Practice and Team Work

The invention relates to an eM-Plant-based MES (Manufacturing Execution Systems) dispatching control method. The method comprises the following steps: (1) importing manufacturing resource information; (2) performing optimal algorithmic dispatching in reference to production dispatching rules and criterion and production constraint conditions; (3) simulating, analyzing and evaluating a dispatching plan; (4) judging whether the dispatching is rational, performing a step (5) if the dispatching is rational, modifying and adjusting if the dispatching is not qualified, and returning to the step (1); (5) outputting a control result. According to the method, the optimization of the MES dispatching is realized, the time is saved, and the working efficiency is improved.

EM-Plant-based MES (Manufacturing Execution Systems) dispatching control method

The invention relates to an optimized machining method of tool cutting amount in numerical control milling. The method includes the following steps: (1) determining a model optimization variable, (2) determining a model objective function, (3) determining constraint conditions in a model, (4) using a genetic algorithm to determine the cutting amount, and (5) machining a tool. A machining method of the tool cutting amount in numerical control milling is optimized, the tool cutting amount is more precise, and therefore production efficiency is improved and production cost is reduced.

Optimized machining method of tool cutting amount in numerical control milling

The invention discloses a building method for taper-changeable composite fiber winding adhesive layer models. The building method for the taper-changeable composite fiber winding adhesive layer models is a new method for building three-dimensional solid models of composite fiber winding adhesive layers in virtual three-dimensional environments by a modularized program drive method; according to a winding process of composite fiber winding products, three-dimensional space coordinate parameters of positioning control points on the fiber winding adhesive layers are calculated according to a normalized curvilinear equation, and modeling is realized by combining a three-dimensional design environment characteristic operation method; the problems of coordinate shifting of the positioning control points of the adhesive layers and segmental splicing of space curves both caused at spring layer/ striding ring positions by composite fibers during simulation of the composite fiber winding adhesive layers are solved. The building method can build the composite fiber winding adhesive layer models with any filament winding lengths, and the models have high similarity to actual composite fiber winding adhesive layer products; the three-dimensional composite fiber winding adhesive layer models have wide range of adaptability to taper of winding mandrel bodies and high dimensional accuracy.

Fang Zhou

Papers

Logistic center cargo delivery routing problem eM-Plant simulation method

CAD Education of College Students with Engineering Practice and Team Work

EM-Plant-based MES (Manufacturing Execution Systems) dispatching control method

Optimized machining method of tool cutting amount in numerical control milling

Building method for taper-changeable composite fiber winding adhesive layer models