Combining with the programming and implementation of railway vehicle virtual-prototyping system, the process chains and product models, model contents and formats, relationships between different models of railway car are analyzed.
On the basis of two-dimensional design, a rapid three-dimensional automatic entity modeling function has been developed, which could transform the production model from two-dimension to three-dimension, and transfer the entity model from CAD software to CAE software.
By integrating the emerging standard for 3D geometry on the World Wide Web with conventional CAD packages, we describe a framework for the development of a product model with various levels of abstractions.
The syntactic content of the product model, accessible through any Internet interface such as Netscape Navigator associates itself with a centralized database for embedding technological information at the face and feature levels.
The semantic and syntactic content of the product model can then be accessed and manipulated through the single Internet interface.
In addition to the usual method a somewhat different point of view is taken, leading on the one hand to a model of continuous convolution and on the other to a product model.
The framework enables interpretation of a common product model with respect to each task in the transition from design to manufacture.
The dynamical behavior of nonlinear, dilute scalar product models is investigated using generating functional techniques.
The increasing market demand for product variety forces manufacturers to design mixed-model assembly lines on which different product models can be switched back and forth and mixed together with little changeover costs.
Thus RE product models use concepts for modelling these instead of concepts like data, process, events, etc., used in conceptual models.
The paper gives the rationale for extending traditional conceptual models and introduces some RE product models.
It can help us to choose the best one from many wood product models.PERT would be helping us to establish a rational and complete wood products manufacture management system.
The structure function F2c is evaluated within the charm-production model based on perturbative QCD.
A cell growth and ceramide production model was developed with Monod kinetics and the Leudecking-Piret model.
We describe an ejecta production model that gives the size and the velocity distribution of ejected particles as a function of primary impact parameters.
Simulating deforestation of Nepal by area production model
Based on the growth rates of population, Gross Domestic Products (GDP) and agriculture productivity, the areas of deforestation were predicted in Jutpani Village, Chitwan district, Nepal by Area Production Model (APM).
Product modeling within the framework of the World Wide Web
Software quality management through process and product modeling
The investigation and implementation of product modeling methods are two of the most important research objectives in the field of computer-aided engineering design.
Commercial product modeling systems go beyond geometric modeling systems in that they are adapted to user requirements through the addition of systems that aid in the generation of engineering models and methods.
The advantages and limitations of procedural and declarative approaches for product modeling are discussed.