Most popular Proengineer characteristics and curve

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Discussion on pro/engineer characteristics and curve and surface modeling

[Abstract] pro/engineer is one of the best 3D modeling software at present. This paper mainly discusses the main characteristics that pro/engineer is superior to general CAD software, the main functions of pro/engineer, and the curve and surface modeling theory of pro/engineer, summarizes the main characteristics of ISDX and the main functions of interactive surface design system, and gives product examples

[Key words] modeling software modeling theory interactive isdx

1 introduction

pro/engineer is a set of mechanical automation software covering from design to production. It is a new generation of product modeling system. It is a parametric, feature-based solid modeling system with a single database function. PTC's series of software has gone deep into various fields such as industrial design and mechanical design, including the management of large assemblies, functional simulation, manufacturing and product data management, and provides the most comprehensive and closely integrated product development environment

2 main features of pro/engineer

pro/engineer is a parameterized design and feature-based solid modeling system. Engineering designers use feature-based functions with intelligent features to generate models, such as cavities, shells, chamfers and fillets. Users can sketch freely and easily change the model, which provides engineering designers with great simplicity and flexibility in design

2.1 full correlation

pro/engineer is built on a unified database, unlike some traditional cad/cam systems built on multiple databases. The so-called single database means that all the materials in the project come from one library, and all the modules are fully related, so that every independent user is working for a product modeling. No matter which department the staff belongs to, as long as they make modifications at a certain place in the product development process, their modifications can be extended to the whole design, and all the engineering documents, including assembly Design drawings and manufacturing data can also be reflected in all relevant links of the whole design process. Full correlation enables users to modify any point in the development cycle without any loss, and makes concurrent engineering possible. Therefore, some functions in the later stage of development can play their role in advance. At the same time, the complete combination of this unique data structure and engineering design makes the design more optimized, the finished product quality higher, the product can be better introduced to the market, and the price is cheaper

2.2 feature based parametric modeling

pro/engineer uses familiar features as the construction elements of product geometric model. These features are common mechanical objects and can be easily modified according to the preset settings. For example, design features such as arcs, fillets, and chamfers are familiar to engineers and easy to use. Assembly, processing, manufacturing and other disciplines all use the unique features of these general key fields to promote the industrialization of key new material varieties through demonstration. Product development can be realized by setting parameters for these features (including not only geometric dimensions, but also non geometric attributes)

2.3 data management

in order to put products on the market quickly, products need to be developed in a relatively short time. To achieve this efficiency, engineers from multiple disciplines must be allowed to develop the same product at the same time. The development of data management module is specially used to manage all the work in concurrent engineering. Due to the unique full correlation function of pro/engineer, data management becomes very simple

2.4 assembly management

pro/engineer provides users with some intuitive commands, such as "engaging", "inserting" and "aligning", which can easily assemble parts. Advanced functions support the construction and management of large and complex assemblies, and the number of parts in these assemblies is not limited

2.5 easy to use the

menu appears in an intuitive cascade manner, and provides common options such as logical options and pre selection. It also provides a brief menu description and complete help. This form makes learning and use easier

3 main functions of pro/engineer

to sum up, pro/engineer mainly has the following functions:

(1) 2D and 3D drawing

(2) mechanical design and simulation

(3) realistic images. The pro/engineer Foundation provides all the tools needed to create accurate, realistic images of pro/engineer components

(4) sheet metal design. The complete pro/engineer foundation sheet metal design tool suite can help users establish basic features such as walls, elbows, punches, notches, patterns and embossed patterns

(5) component functions. Because users need to develop products, not just parts, many functions of defining and building assemblies are provided in the infrastructure of pro/engineer foundation

(6) animation design

(7) related graph table

(8) advanced part extension. The advanced component extension helps design teams design and manage large and complex products by providing tools that support a top-down design approach, handle alternative product configurations, and manage large and complex components

(9) complete and detailed documentation

(10) curve and surface

4 pro/engineer curve and surface modeling

pro/engineer advanced surface extension function combined with pro/engineer foundation can meet customers' needs for complex control of product shape. Designers can design various products from prismatic engine components to contoured golf club, and then to human dental organs. The advanced surface extension function provides high-performance tools such as reverse engineering design specification management, parametric surface modeling and direct surface modeling. To sum up, it has several characteristics

4.1 parametric surface modeling

advanced surface features can help designers and engineers efficiently develop and optimize dimension driven geometry and free-form surfaces. The parametric surface modeling function provides designers with various convenient surface modeling tools, such as variable section scanning tool, in which the longitudinal section can be controlled by user-defined charts or mathematical functions; In addition, it also provides tools such as blending surfaces, a large number of surface operations, expansion, clipping, offset and conversion to help users create accurate shapes

4.2 direct surface modeling and reverse engineering

in order to obtain design surface information from solid models, prototypes or existing products, the advanced surface function reverse engineering tool of pro/engineer provides a method to quickly create, modify and verify finalized surfaces. The ability to quickly and efficiently build high-quality shaped surfaces can speed up the subsequent process in many ways, thus saving users a lot of time

Figure 1 the product model made by pro/engineer advanced surface modeling

pro/engineer interactive surface design extension (ISDX) defines a new generation of surface processing technology. This new tool has unique free-form curve and surface modeling capabilities, as well as advanced interoperability and flexibility. It allows designers and engineers to work in a fully free parametric modeling environment, so as to ensure the real integration of design and engineering. ISDX enables designers and engineers to work in a unique environment with great design flexibility by building complex free-form geometry based on the parametric modeling of pro/engineer

isdx is a tool that can change the communication methods of design and engineering, a tool that can ensure the real cooperation of design, engineering and manufacturing, a tool that can provide great flexibility in product development engineering, and a new surface processing module that integrates parametric modeling technology and free-form surface processing method into pro/engineer environment. ISDX can make the workflow smoother, research more design alternatives, and manage various modifications at any level and process of the design process

4.3 main features of ISDX

4.3.1 high flexibility and integration

users can use sketches, sketches or other reference data to design geometric figures, so that they can start from pure concepts and gradually design concepts into product models. Since all design, engineering and manufacturing information will certainly be stored, many design alternatives can be studied and designed in a very short time during the whole product development process. This tool maintains the complete design intent from the beginning of design, not only for data transmission and conversion, so it can provide smooth communication in the whole process

4.3.2 direct curve and surface modeling in the new environment

isdx enables designers and engineers to work in a new visual design environment, including various options in a unique four view window, and direct establishment, processing and control of curves, surfaces and connections. As shown in Figure 2, this intuitive interactive environment enables users to establish various free-form geometric figures and curve and surface models that meet the needs of multiple or few constraints at any time of design. ISDX can make full use of the powerful functions of pro/engineer parametric environment to complete the integration of free-form and parametric modeling technology

Figure 2 the intuitive 4-view window design environment

isdx combines all the latest tools for creating curves and surfaces. It allows designers and engineers to build the desired surface in a very intuitive way, thus ensuring higher efficiency and more effective design control. ISDX's function of directly establishing and processing curves supports complex design, can establish and complete the connection of complex surfaces, and improves the quality and flexibility of surface processing to a new level

whether from the point of view of design and manufacturing or from the point of view of product marketing, the ability of pro/engineer to build high-quality surfaces in an intuitive environment is of great value in today's rapidly developing development market

4.3.3 pro/engineer interactive surface design

interactive surface design is an integrated modeling method, which ensures maximum flexibility in the design process and enables designers and engineers to design products according to assumptions. Whether users are building curves, surfaces, or the relationship between entities, they can provide them with all the software tools they need to build free-form surface models. This ability to imagine and build arbitrary shape surface models in Feature-based Parametric modeling environment has raised the function of pro/engineer to a new level

users can easily create free-form surfaces as part of pro/engineer models by blending existing geometry or by creating new designs

isdx can fully integrate free-form surface processing and engineering design. Users can change the model at any time without quitting the tool currently in use. You only need to redefine or modify the feature, and then you can continue working. It focuses on value-added design, not data transmission. Instead of waiting for others to complete the changes, users can quickly and easily complete the model in pro/engineer

in free-form surface processing method and parametric driven

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