DIFFERENCE BETWEEN AUTOCAD AND SOLIDWORKS

SolidWorks is what we call a "parametric" solid modeller used for 3-D design. Parametric means that the dimensions can have relationships between one another and can be changed at any point during the design process to automatically alter the solid part and any related documentation (blueprint). AutoCAD, however, is primarily a 2-D design tool with some, but limited 3-D capabilities. It is very simple compared to any parametric solid modeller (although 3D is improved in AutoCAD 2007). Autodesk (the manufacturer of AutoCAD) makes a product that is nearly identical to SolidWorks, called Inventor, which is a parametric program for design of solid parts and assemblies.

SolidWorks is a 3D mechanical CAD (computer-aided design) program that runs on Microsoft Windows. SolidWorks files use the Microsoft Structured storage file format. This means that there is various files embedded within each SLDDRW (drawing files), SLDPRT (part files), SLDASM (assembly files), with preview bitmaps and metadata sub-files. Various third-party tools can be used to extract these sub-files, although the sub-files in many cases use proprietary binary file formats. SolidWorks is a parasolid-based solid modeller, and utilizes a parametric feature-based approach to create models and assemblies. Parameters refer to restrictions which values determine the shape or geometry of the model. Parameters can be either numeric, such as line lengths or circle diameters, or geometric, such as tangent, parallel, concentric, horizontal or vertical. Numeric parameters can be associated with each other through the use of relations, which allows them to capture design intent.

AutoCAD is, just like SolidWorks, a Computer Aided Design software application for 2-D and 3-D design and drafting. AutoCAD was one of the first CAD programs to run on personal or home computers, notably the IBM personal computer. At that time, most other CAD programs ran on mainframe computers or mini-computers that were connected to a graphics computer terminal for each user. Early releases of AutoCAD used basic entities such as lines, poly-lines, circles, arcs, and text to ultimately construct more complex objects. AutoCAD has since started to support custom objects through its C++ Application Programming Interface (API).

Modern AutoCAD includes a full set of basic solid modelling and 3-D tools. With the release of AutoCAD 2007 improved 3D modelling saw the light, which means better navigation when working in three dimensions. It also became easier to edit 3-D models. The mental ray engine was included in rendering and thus it was now possible to do quality renderings. AutoCAD 2010 introduced parametric functionality and network modelling. At this moment, AutoCAD only runs under Microsoft Windows operating systems. It is available in 32-bit and 64-bit versions. AutoCAD can run on an emulator or compatibility layer like VM-ware Workstation or Wine, although various performance issues can arise if you work with 3-D objects or large drawings.

Choosing a system that works for you depends solely on the type of work you want to do. Many experts say that SolidWorks is more effective when working on 3 dimensional designs and that AutoCAD is the way to go for 2 dimensional design.

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Drawings Graphics Language

Sample of engineering Design Drawings

1.General:A technical person can use the graphic language as powerful means of communication with others for conveying ideas on technical matters. However, for effective exchange of ideas with others, the engineer must have proficiency in

(i) language, both written and oral,

(ii) symbols associated with basic sciences and

(iii) the graphic language. Engineering drawing is a suitable graphic language from which any trained person can visualise the required object.

As an engineering drawing displays the exact picture of an object, it obviously conveys the same ideas to every trained eye. Irrespective of language barriers, the drawings can be effectively used in other countries, in addition to the country where they are prepared. Thus, the engineering drawing is the universal language of all engineers. Engineering drawing has its origin sometime in 500 BC in the regime of King Pharos of Egypt when symbols were used to convey the ideas among people.

2.Importance Of Graphics Language: The graphic language had its existence when it became necessary to build new structures and create new machines or the like, in addition to representing the existing ones. In the absence of graphic language, the ideas on technical matters have to be conveyed by speech or writing, both are unreliable and difficult to understand by the shop floor people for manufacturing. This method involves not only lot of time and labour, but also manufacturing errors. Without engineering drawing, it would have been impossible to produce objects such as aircrafts, automobiles, locomotives, etc., each requiring thousands of different components.

3.Need For Correct Drawings: The drawings prepared by any technical person must be clear, unmistakable in meaning and there should not be any scope for more than one interpretation, or else litigation may arise. In a number of dealings with contracts, the drawing is an official document and the success or failure of a structure depends on the clarity of details provided on the drawing. Thus, the drawings should not give any scope for mis-interpretation even by accident. It would not have been possible to produce the machines/automobiles on a mass scale where a number of assemblies and sub-assemblies are involved, without clear, correct and accurate drawings. To achieve this, the technical person must gain a thorough knowledge of both the principles and conventional practice of draughting. If these are not achieved and or practiced, the drawings prepared by one may convey different meaning to others, causing unnecessary delays and expenses in production shops. Hence, an engineer should posses good knowledge, not only in preparing a correct drawing but also to read the drawing correctly. The course content of this book is expected to meet these requirements. The study of machine drawing mainly involves learning to sketch machine parts and to make working and assembly drawings. This involves a study of those conventions in drawings that are widely adopted in engineering practice.

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Part Mode, Assembly Mode And Drawing Mode In Solidworks 2016

Part Mode
The Part mode of SOLIDWORKS is a feature-based parametric environment in which you can create solid models. In this mode, you are provided with three default planes named as Front Plane, Top Plane, and Right Plane. First, you need to select a sketching plane to create a sketch for the base feature. On selecting a sketching plane, you enter the sketching environment. The sketches for the model are drawn in the sketching environment using easy-to-use tools. After drawing the sketches, you can dimension them and apply the required relations in the same sketching environment. The design intent is captured easily by adding relations and equations and using the design table in the design. You are provided with the standard hole library known as the Hole Wizard in the Part mode. You can create simple holes, tapped holes, counterbore holes, countersink holes, and so on by using this wizard. The holes can be of any standard such as ISO, ANSI, JIS, and so on. You can also create complicated surfaces by using the surface modeling tools available in the Part mode. Annotations such as weld symbols, geometric tolerance, datum references, and surface finish symbols can be added to the model within the Part mode. The standard features that are used frequently can be saved as library features and retrieved when needed. The palette feature library of SOLIDWORKS contains a number of standard mechanical parts and features. You can also create the sheet metal components in this mode of SOLIDWORKS by using the related tools. Besides this, you can also analyze the part model for various stresses applied to it in the real physical conditions by using an easy and userfriendly tool called SimulationXpress. It helps you reduce the cost and time in physically testing your design in real testing conditions (destructive tests). You can also analyze the component during modeling in the SOLIDWORKS windows. In addition, you can work with the weld modeling within the Part mode of SOLIDWORKS by creating steel structures and adding weld beads. All standard weld types and welding conditions are available for your reference. You can extract the core and the cavity in the Part mode by using the mold design tools.
Assembly Mode

In the Assembly mode, you can assemble components of the assembly with the help of the required tools. There are two methods of assembling the components:
1. Bottom-up assembly
2. Top-down assembly

In the bottom-up assembly method, the assembly is created by assembling the components created earlier and maintaining their design intent. In the top-down method, the components are created in the assembly mode. You may begin with some ready-made parts and then create other components in the
context of the assembly. You can refer to the features of some components of the assembly to drive the dimensions of other components. You can assemble all components of an assembly by using a single tool, the Mate tool. While assembling the components of an assembly, you can also animate
the assembly by dragging. Besides this, you can also check the working of your assembly. Collision
detection is one of the important features in this mode. Using this feature, you can rotate and move
components as well as detect the interference and collision between the assembled components. You
can see the realistic motion of the assembly by using physical dynamics. Physical simulation is used
to simulate the assembly with the effects of motors, springs, and gravity on the assemblies.
Drawing Mode
The Drawing mode is used for the documentation of the parts or the assemblies created earlier in the
form of drawing views. The procedure for creating drawing views is called drafting. There are two
types of drafting done in SOLIDWORKS:
1. Generative drafting
2. Interactive drafting
Generative drafting is a process of generating drawing views of a part or an assembly created earlier.
The parametric dimensions and the annotations added to the component in the Part mode can be
generated in the drawing views. Generative drafting is bidirectionally associative in nature. Automatic

BOMs and balloons can be added to an assembly while generating the drawing views of it.
In interactive drafting, you have to create the drawing views by sketching them using normal
sketching tools and then add dimensions to them.

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INTRODUCTION TO SOLIDWORKS 2016

Welcome to the world of Computer Aided Design (CAD) with SOLIDWORKS. If you are a new user
of this software package, you will be joining hands with thousands of users of this parametric, feature-based, and one of the most user-friendly software packages. If you are familiar with the previous releases of this software, you will be able to upgrade your designing skills with this improved release of SOLIDWORKS.
SOLIDWORKS, developed by the SOLIDWORKS Corporation, USA, is a feature-based, parametric
solid-modeling mechanical design and automation software. SOLIDWORKS is the first CAD package
to use the Microsoft Windows graphic user interface. The use of the drag and drop (DD) functionality
of Windows makes this CAD package extremely easy to learn. The Windows graphic user interface makes it possible for the mechanical design engineers to innovate their ideas and implement them in
the form of virtual prototypes or solid models, large assemblies, subassemblies, and detailing and
drafting.

SOLIDWORKS is one of the products of SOLIDWORKS Corporation, which is a part of Dassault
Systemes. SOLIDWORKS also works as platform software for a number of software. This implies
that you can also use other compatible software within the SOLIDWORKS window. There are a
number of software provided by the SOLIDWORKS Corporation, which can be used as add-ins with
SOLIDWORKS. Some of the software that can be used on SOLIDWORKS’s work platform are listed

below

SOLIDWORKS Motion SOLIDWORKS Routing ScanTo3D eDrawings
SOLIDWORKS Simulation SOLIDWORKS Toolbox PhotoView 360 CircuitWorks
SOLIDWORKS Plastics SOLIDWORKS Inspection TolAnalyst
As mentioned earlier, SOLIDWORKS is a parametric, feature-based, and easy-to-use mechanical
design automation software. It enables you to convert the basic 2D sketch into a solid model by using
simple but highly effective modeling tools. It also enables you to create the virtual prototype of a
sheet metal component and the flat pattern of the component. This helps you in the complete process
planning for designing and creating a press tool. SOLIDWORKS helps you to extract the core and the
cavity of a model that has to be molded or cast. With SOLIDWORKS, you can also create complex
parametric shapes in the form of surfaces. Some of the important modes of SOLIDWORKS are
discussed next.

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Aerodynamics Car Test By Use SolidWorks Simulation(Video & Document)

Most of us don't think of air or wind as a wall. At low speeds and on days when it's not very windy outside, it's hard to notice the way air interacts with our vehicles. But at high speeds, and on exceptionally windy days, air resistance (the forces acted upon a moving object by the air -- also defined as drag) has­ a tremendous effect on the way a car accelerates, handles and achieves fuel mileage.

This where the science of aerodynamics comes into play. Aerodynamics is the study of forces and the resulting motion of objects through the air [source: NASA]. For several decades, cars have been designed with aerodynamics in mind, and carmakers have come up with a variety of innovations that make cutting through that "wall" of air easier and less of an impact on daily driving.

­Essentially, having a car designed with airflow in mind means it has less difficulty accelerating and can achieve better fuel economy numbers because the engine doesn't have to work nearly as hard to push the car through the wall of air.

Engineers have developed several ways of doing this. For instance, more rounded designs and shapes on the exterior of the vehicle are crafted to channel air in a way so th­at it flows around the car with the least resistance possible. Some high-performance cars even have parts that move air smoothly across the underside of the car. Many also include a spoiler -- also known as a rear wing -- to keep the air from lifting the car's wheels and making it unstable at high speeds. Although, as you'll read later, most of the spoilers that you see on cars are simply for decoration more than anything else.

In this article, we'll look at the physics of aerodynamics and air resistance, the history of how cars have been designed with these factors in mind and how with the trend toward "greener" cars, aerodynamics is now more important than ever.

Aerodynamics Solidworks Test Video

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INTRODUCTION TO SOLIDWORKS 2016

Welcome to the world of Computer Aided Design  (CAD) with SOLIDWORKS. If you are a new user of this software package, you will be joining hands with thousands of users of this  parametric, feature-based, and one o f the most user-friendly  software  packages. If  you  are familiar   with  the previous  releases  of  t hi s  software, you will be able to upgrade your designing skills with this improved release of SOLIDWORKS.

SOLI DWORKS, developed by the SOLI DWORKS Corporation, USA, is a feature based,parametric solid-modeling mechanical design and automation software. SOLIDWORKS is the first CAD package to use the Microsoft windows graphic the user interface.The use of the drag and drop (DD) functionality of  Windo ws  makes  t hi s  CAD  package extremely easy to learn.The  Windows  graphic user interface makes it possible for the mechanical design engineers to innovate their ideas and implement them in the form of virtual prototypes or solid models, large assemblies, subassemblies, and detailing and drafting. SOLIDWORKS is one of the products of SOLI DWORKS Corporation, which is a part of Dassault Systems.   SOLI DWORKS  also works as plat form software for a number of software. This implies

that you  canal so use other compatible  software  within the SOLIDWORKS window. There are a number of software  provided by the SOLI DWORKS Corporation, which can be used as add-ins with SOLIDWORKS. Some of the software that can  because on SOLI DWORKS’ s  wor k plat form  are listed

below:

SOLIDWORKS Motion SOLIDWORKS Routing  Scan To 3D eDrawings

SOLIDWORKS Simulation SOLIDWORKS Toolbox Phot o View 360 CircuitWorks

SOLIDWORKS Plastics SOLIDWORKS Inspection Tool Analyst As  mentioned earlier, SOLIDWORKS is a parametric, feature-based, and easy-t o -use mechanical design  automation software. It enables you to convert the basic 2D sketch into a solid model by using

simple but hig hly  effect ive  mo del ing   t o o l s.   I t   al so   enables  yo u  t o   cr eat e  t he  vi r t ual   pr o t o t ype  o f  a

sheet   met al   co mpo nent   and  t he  flat   pat t er n  o f  t he  co mpo nent .   Thi s  helps  yo u  in  t he  co mplet e  pr o cess

planning  fo r  desig ning  and cr eat ing  a pr ess t o o l .  SOLI DWORKS helps yo u t o  ext r act  t he co r e and t he

cavi t y  o f  a  mo del   t hat   has  t o   be  mo lded  o r   cast .   Wi t h  SOLI DWORKS,  yo u  can  al so   cr eat e  co mplex

par amet r ic  shapes  in  t he  fo r m  o f  sur faces.   So me  o f  t he  impo r t ant   mo des  o f  SOLI DWORKS  ar e

di scussed next .

Par t Mode

The Part  mo de o f SOLI DWORKS i s a feat ur e-based par amet r ic envi r o nment  in which yo u can cr eat e

so l id  mo del s.   I n  t hi s  mo de,  yo u  ar e  pr o vided  wi t h  t hr ee  defaul t   planes  named  as  Fro nt   Pl ane,  To p

Pl ane,  and  Ri g ht   Pl ane.   Fi r st ,  yo u  need  t o   select   a  sket ching   plane  t o   cr eat e  a  sket ch  fo r   t he  base

feat ur e.   On  select ing   a  sket ching   plane,  yo u  ent er   t he  sket ching   envi r o nment .   The  sket ches  fo r   t he

mo del   ar e  dr awn  in  t he  sket ching   envi r o nment   using   easy-t o -use  t o o l s.   Aft er   dr awing   t he  sket ches,

yo u  can  dimensio n  t hem  and  apply  t he  r equi r ed  r elat io ns  in  t he  same  sket ching   envi r o nment .   The

desig n  int ent   i s  capt ur ed  easi ly  by  adding   r elat io ns  and  equat io ns  and  using   t he  desig n  t able  in  t he

desig n.  Y o u  ar e  pr o vided wi t h  t he  st andar d  ho le  l ibr ar y  kno wn  as  t he Ho l e Wi zard  in  t he  Part   mo de.

Y o u  can  cr eat e  simple  ho les,  t apped  ho les,  co unt er bo r e  ho les,  co unt er sink  ho les,  and  so   o n  by  using

t hi s  wizar d.   The  ho les  can  be  o f  any  st andar d  such  as  I SO,  ANSI ,  JI S,  and  so   o n.   Y o u  can  al so   cr eat e

co mpl icat ed  sur faces  by  using   t he  sur face  mo del ing   t o o l s  avai lable  in  t he  Part   mo de.   Anno t at io ns

such  as  weld  symbo l s,  g eo met r ic  t o ler ance,  dat um  r efer ences,  and  sur face  fini sh  symbo l s  can  be

added  t o   t he mo del  wi t hin  t he  Part   mo de.   The  st andar d  feat ur es  t hat   ar e  used  fr equent ly  can  be  saved

as  l ibr ar y  feat ur es  and  r et r ieved  when  needed.   The  palet t e  feat ur e  l ibr ar y  o f  SOLI DWORKS  co nt ains

a  number   o f  st andar d  mechanical   par t s  and  feat ur es.   Y o u  can  al so   cr eat e  t he  sheet   met al   co mpo nent s

in  t hi s  mo de  o f  SOLI DWORKS  by  using   t he  r elat ed  t o o l s.   Besides  t hi s,  yo u  can  al so   analyze  t he  par t

mo del   fo r   var io us  st r esses  appl ied  t o   i t   in  t he  r eal   physical   co ndi t io ns  by  using   an  easy  and  user fr iendly  t o o l   cal led Simulat io nXpr ess.   I t   helps  yo u  r educe  t he  co st   and  t ime  in  physical ly  t est ing   yo ur

desig n  in  r eal   t est ing   co ndi t io ns  (dest r uct ive  t est s).   Y o u  can  al so   analyze  t he  co mpo nent   dur ing

mo del ing   in  t he  SOLI DWORKS  windo ws.   I n  addi t io n,  yo u  can  wo r k  wi t h  t he  weld  mo del ing   wi t hin

t he  Part   mo de  o f  SOLI DWORKS  by  cr eat ing   st eel   st r uct ur es  and  adding   weld  beads.   Al l   st andar d

weld  t ypes  and  welding   co ndi t io ns  ar e  avai lable  fo r   yo ur   r efer ence.   Y o u  can  ext r act   t he  co r e  and  t he

cavi t y in t he Part  mo de by using  t he mo ld desig n t o o l s.

Assembly Mode

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