Computer- aided design - Wikipedia, the free encyclopedia. Computer- aided design (CAD) is the use of computer systems to aid in the creation, modification, analysis, or optimization of a design. The term CADD (for Computer Aided Design and Drafting) is also used. In mechanical design it is known as mechanical design automation (MDA) or computer- aided drafting (CAD), which includes the process of creating a technical drawing with the use of computer software. However, it involves more than just shapes. As in the manual drafting of technical and engineering drawings, the output of CAD must convey information, such as materials, processes, dimensions, and tolerances, according to application- specific conventions. CAD may be used to design curves and figures in two- dimensional (2. D) space; or curves, surfaces, and solids in three- dimensional (3. D) space. CAD is also widely used to produce computer animation for special effects in movies, advertising and technical manuals, often called DCC digital content creation. The modern ubiquity and power of computers means that even perfume bottles and shampoo dispensers are designed using techniques unheard of by engineers of the 1. Because of its enormous economic importance, CAD has been a major driving force for research in computational geometry, computer graphics (both hardware and software), and discrete differential geometry. The benefit of CAD systems over manual drafting are the capabilities one often takes for granted from computer systems today; automated generation of Bill of Material, auto layout in integrated circuits, interference checking, and many others. Eventually CAD provided the designer with the ability to perform engineering calculations. During this transition, calculations were still performed either by hand or by those individuals who could run computer programs. CAD was a revolutionary change in the engineering industry, where draftsmen, designers and engineering roles begin to merge. It did not eliminate departments, as much as it merged departments and empowered draftsman, designers and engineers. CAD is just another example of the pervasive effect computers were beginning to have on industry. CAD software is 2D and 3D. CAD software is 2D and 3D computer-aided design software. AutoCAD software was the first CAD program. Current computer- aided design software packages range from 2. D vector- based drafting systems to 3. D solid and surface modelers. Modern CAD packages can also frequently allow rotations in three dimensions, allowing viewing of a designed object from any desired angle, even from the inside looking out. Some CAD software is capable of dynamic mathematical modeling, in which case it may be marketed as CAD. CAD technology is used in the design of tools and machinery and in the drafting and design of all types of buildings, from small residential types (houses) to the largest commercial and industrial structures (hospitals and factories). It can also be used to design objects. Furthermore, many CAD applications now offer advanced rendering and animation capabilities so engineers can better visualize their product designs. D BIM is a type of virtual construction engineering simulation incorporating time or schedule related information for project management. Download our 3D CAD home design software to begin. Free downloads and best reviews for all 2D CAD. Named among America's best architecture and design. Minors that complement this program: Interior design. CAD has become an especially important technology within the scope of computer- aided technologies, with benefits such as lower product development costs and a greatly shortened design cycle. CAD enables designers to layout and develop work on screen, print it out and save it for future editing, saving time on their drawings. Computer- aided design is one of the many tools used by engineers and designers and is used in many ways depending on the profession of the user and the type of software in question. CAD is one part of the whole Digital Product Development (DPD) activity within the Product Lifecycle Management (PLM) processes, and as such is used together with other tools, which are either integrated modules or stand- alone products, such as: CAD is also used for the accurate creation of photo simulations that are often required in the preparation of Environmental Impact Reports, in which computer- aided designs of intended buildings are superimposed into photographs of existing environments to represent what that locale will be like, where the proposed facilities are allowed to be built. Potential blockage of view corridors and shadow studies are also frequently analyzed through the use of CAD. CAD has been proven to be useful to engineers as well. Using four properties which are history, features, parameterization, and high level constraints. The construction history can be used to look back into the model's personal features and work on the single area rather than the whole model. Take the guesswork out of interior decorating and design! Browse Homestyler to get amazing home. Home Design, Interior Design and Landscaping Software. Home Designer by Chief Architect Software is the best house design software tool for DIY home. Parameters and constraints can be used to determine the size, shape, and other properties of the different modeling elements. The features in the CAD system can be used for the variety of tools for measurement such as tensile strength, yield strength, electrical or electro- magnetic properties. Also its stress, strain, timing or how the element gets affected in certain temperatures, etc. There are several different types of CAD. These provide an approach to the drawing process without all the fuss over scale and placement on the drawing sheet that accompanied hand drafting, since these can be adjusted as required during the creation of the final draft. D wireframe is basically an extension of 2. D drafting (not often used today). Each line has to be manually inserted into the drawing. The final product has no mass properties associated with it and cannot have features directly added to it, such as holes. The operator approaches these in a similar fashion to the 2. D systems, although many 3. D systems allow using the wireframe model to make the final engineering drawing views. D . Basic three- dimensional geometric forms (prisms, cylinders, spheres, and so on) have solid volumes added or subtracted from them, as if assembling or cutting real- world objects. Two- dimensional projected views can easily be generated from the models. Basic 3. D solids don't usually include tools to easily allow motion of components, set limits to their motion, or identify interference between components. There are two types of 3. D Solid Modeling. Parametric modeling allows the operator to use what is referred to as . The objects and features created are modifiable. Any future modifications can be made by changing how the original part was created. If a feature was intended to be located from the center of the part, the operator should locate it from the center of the model. The feature could be located using any geometric object already available in the part, but this random placement would defeat the design intent. If the operator designs the part as it functions the parametric modeler is able to make changes to the part while maintaining geometric and functional relationships. Direct or Explicit modeling provide the ability to edit geometry without a history tree. With direct modeling once a sketch is used to create geometry the sketch is incorporated into the new geometry and the designer just modifies the geometry without needing the original sketch. As with parametric modeling, direct modeling has the ability to include relationships between selected geometry (e. Top end systems offer the capabilities to incorporate more organic, aesthetics and ergonomic features into designs. Freeform surface modeling is often combined with solids to allow the designer to create products that fit the human form and visual requirements as well as they interface with the machine. Technology. Typical modern parametric feature based modeler and freeform surface systems are built around a number of key C modules with their own APIs. A CAD system can be seen as built up from the interaction of a graphical user interface (GUI) with NURBS geometry and/or boundary representation (B- rep) data via a geometric modeling kernel. A geometry constraint engine may also be employed to manage the associative relationships between geometry, such as wireframe geometry in a sketch or components in an assembly. Unexpected capabilities of these associative relationships have led to a new form of prototyping called digital prototyping. In contrast to physical prototypes, which entail manufacturing time in the design. That said, CAD models can be generated by a computer after the physical prototype has been scanned using an industrial CT scanning machine. Depending on the nature of the business, digital or physical prototypes can be initially chosen according to specific needs. Today, CAD systems exist for all the major platforms (Windows, Linux, UNIX and Mac OS X); some packages even support multiple platforms. Right now, no special hardware is required for most CAD software. However, some CAD systems can do graphically and computationally intensive tasks, so a modern graphics card, high speed (and possibly multiple) CPUs and large amounts of RAM may be recommended. The human- machine interface is generally via a computer mouse but can also be via a pen and digitizing graphics tablet. Manipulation of the view of the model on the screen is also sometimes done with the use of a Spacemouse/Space. Ball. Some systems also support stereoscopic glasses for viewing the 3. D model. Technologies which in the past were limited to larger installations or specialist applications have become available to a wide group of users. These include the CAVE or HMD`s and interactive devices like motion- sensing technology. Software. Most applications support solid modeling with boundary representation (B- Rep) and NURBS geometry, and enable the same to be published in a variety of formats. A geometric modeling kernel is a software component that provides solid modeling and surface modeling features to CAD applications. Based on market statistics, commercial software from Autodesk, Dassault Systems, Siemens PLM Software and PTC dominate the CAD industry. Examples of problems being solved in the mid- 1. Servo motors controlled by generated pulse (1. The Best Interior Design Software of 2. Why Use Interior Design Software? It's pretty easy to buy a hat or a shirt that you love in the store and then never wear again. Impulse buying may be especially regrettable when it comes to interior design, though, even if that bright pink accent wall seemed like a good idea at the time. Tearing out the vile tile you just had put in is no small task and neither is learning to live with it. Interior design software can help by allowing you to virtually make changes to your home first for a small initial investment of time and money. Then you get a good idea of what you might enjoy in your home before you make a larger purchase. This type of software can help you recreate your home on screen and swap out colors and styles of furniture, fixtures, lighting, flooring and wall covering so you can essentially try before you buy. We've searched out the products that make this process the easiest and compared them head- to- head. Take a look at our reviews of the top three products, Chief Architect Home Designer Interiors, Punch Home & Landscape Design Premium, and Punch Interior Design Suite, and find more information about home interior design in our articles about interior design software. Interior Design Software: What to Look For. Several key elements are essential for house interior design software to be worth the investment. As you look over your options, keep these elements in mind. This will help you choose the product that best fits your needs, whether you want to simply visualize changes or lay out a solid design plan from which to work. Features. The best interior design software incorporates a variety of features and tools. The ones we value most offer true- to- life digital drawings of your home in 2. D and 3. D. They allow you to adjust camera angles and shoot a virtual walk- through of your design. They allow you to exactly recreate your home by letting you enter in exact dimensions and can measure anew, automatically, if you decide to knock out a wall. The best products offer a full complement of features to assist you in creating a comfortable and stylish house. Design & Construction Tools. Effective tools to help you achieve the best designs and renovations are an important aspect of any interior design software. These tools can include room templates that you can customize, a window and door designer, a kitchen design planner, and a cabinet designer as well as a construction cost estimator and tools to plan HVAC, plumbing, electrical and lighting schematics. Object Libraries. The best interior design software products offer libraries that contain thousands of home d. These can include appliances, fixtures, cabinets, doors, flooring, windows, railings and even plants as well as many other items that relate to home use and design. Help & Support. This section deals with the products' technical support, tutorials, forums and training. If developers don't back up their software with good support, you'll feel frustrated and cheated when you try to use the application and encounter difficulties. Interior design software is a wonderful tool to try out new room designs, layouts and d. It can help you plan the best renovations and designs before you build, whether you're constructing a new house or remodeling your current one.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
January 2017
Categories |