This book is specially meant for professionals and students in structural engineering, civil engineering, and allied fields in the building industry. In this book, along with the main text, the chapters have been punctuated with tips and notes to give additional information on the concept, thereby enabling you to create your own innovative project. Salient Features: Detailed explanation of structural tools of Autodesk Revit. Real-world structural projects given as tutorials. Tips and Notes throughout the book.
Customizable PowerPoint Presentations of every chapter. This book provides a detailed description of the tools that are commonly used in modeling, assembly, and sheet metal as well as in surfacing. Special emphasis has been laid on the explanation of the concepts, which have been described in detail using text as well as graphical examples, wherever required.
Real-world mechanical engineering designs as tutorials and projects. It explores the processes involved in Building Information Modeling.
The topics covered in this textbook range from creating building components, HVAC system, electrical system, plumbing system, and Fire protection system to designing conceptual massing, performing HVAC heating and loading analysis, and creating rich construction documentation. Coverage of advanced concepts such as worksharing, families, and system creation. Detailed description on building envelope, spaces and zones, HVAC system, electrical system, fire fighting system, and plumbing system.
Step-by-step explanation that guides the users through the learning process. Effectively communicates the utility of Revit for MEP. Also, the chapters are structured in a pedagogical sequence that makes this book very effective in learning the features and capabilities of AutoCAD Plant 3D Special emphasis has been laid in this book on tutorials and exercises, which relate to the real world projects, help you understand the usage and abilities of the tools available in AutoCAD Plant 3D Step-by-step instructions to guide the users through the learning process.
Real-world mechanical engineering designs as tutorials. Self-Evaluation Tests and Review Questions at the end of each chapter to help the users assess their knowledge. This enables the users to harness the power of managing projects with Oracle Primavera P6 for their specific use. In this book, the author emphasizes on planning, managing and controlling the projects, assigning resources and roles to a project, and producing schedule and resources reports and graphics.
This book is specially meant for professionals and students in engineering, project management and allied fields in the building industry. Technical support by contacting techsupport cadcim. Engineering Economics for Aviation and Aerospace provides the tools and techniques necessary for engineers to economically evaluate their projects and choices. The focus of this book is on a comprehensive understanding of the theory and practical applications of engineering economics.
It explains and demonstrates the principles and techniques of engineering economics and financial analysis as applied to the aviation and aerospace industries. Time value of money, interest factors, and spreadsheet functions are used to evaluate the cash flows associated with a single project or multiple projects. The alternative engineering economics tools and techniques are utilized in separate chapters to evaluate the attractiveness of a single project or to select the best of multiple alternatives.
Most of the engineering economics and financial mathematics books available in the market take either a pure theoretical approach or offer limited applications. This book incorporates both approaches, providing students of aviation and industrial economics, as well as practitioners, with the necessary mathematical knowledge to evaluate alternatives on an economic basis. The book's objective is to instruct anyone who wants to learn CATIA V5 Release 19 through organized, graphically rich, step-by-step instructions on the software's basic processes and tools.
Each lesson is presented with sep-by-step instructions. Table of Contents 1. Sketcher Workbench 4. Part Design Workbench 5. Drafting Workbench 6. Drafting Workbench 7. Assembly Design Workbench 9. Generative Shape Design Workbench DMU Navigator Both dimensions have values attached to them. One dimension is the chamfer length and the other is the chamfer angle.
Reference Step 19 modifying constraints on how to modify the values to exactly what you require for your chamfer. This chamfer is a two dimensional entity. Lesson 2 also explains a method of creating chamfers on three-dimensional entities, using a Part Design Work Bench. As you select the line hold the mouse button down, now drag the mouse up. Notice that the entire profile expands and contracts as you drag the mouse button around.
All the other lines can be modified in position, length and angle. You cannot modify the location of lines 1 and 2 because they are linked to Point. The green dimension lines that were created with Point. It is the constraint values that tie Point. Constraints are restrictions on one entity to another entity. The Anchor tool restricts the entities movement in relationship to the coordinate location only.
Line 1 and 2 are not truly anchored because the constraint is tied to their relationship to Point. The effect is the same, line 1 and 2 can not be moved.
If you want to constrain the location of an entity without constraining any other entity the Anchor tool is a good option. You can restrict line 6 by Anchoring it. Elements can be anchored by completing the following steps. For this lesson select line 6. This will bring up the Constraint Definition pop up window.
For this lesson select the Fix constraint. Notice that line 6 will turn green meaning that it is constrained and the Anchor icon also shows up on the line, this signifies what kind of constraint is applied Figure 1. Allowing the quick and sometimes uncontrolled modification to a sketch can be a Figure 1. As the design nears completion the ideas are being locked down, there are fewer variables. As variables become known constants you can constrain them.
The purpose of this step was to give you a brief introduction to how CATIA V5 allows you to move and modify the sketched entities. It also introduces you to how to constrain the entities. The only way to fully understand all the tools available to you is to test them yourself. Step 18 covers constraints in more detail. One reason is that you or any one else could accidentally select a line and move it out of position, as you experienced in Step Constraints keep the required relationships between the Sketcher entities that make up the profile.
Hopefully this step will convince you that constraints can be a powerful tool. You have already applied a constraint and may not even know it. The Anchor icon in Step 17 is a constraint. The values attached to the Chamfer and Corner are constraints. To apply Dimensional Constraints complete the following steps: This will bring up the Constraint Definition pop up window shown in Figure 1.
This window shows the existing value for the Sketcher element. This value can be edited by typing the new value over the existing value. Then select OK or hit the Enter key. The entity linked to the constraint will automatically be updated to the new value. If the constraint is between Figure 1. The constraint value will appear near the constraint.
To move the constraint value, follow Steps Once you select the Auto Constraint icon a pop up window comes up prompting you to select which entities you want to constrain Figure 1. You can select one entity at a time, multi-select or select only a few specific entities that you want constrained. After making your selection select OK, located at the bottom of the pop up window.
The entities selected will show up in green with the constraint value box. Getting complete control of this tool will take some practice and patience. A Constraints Definition box will pop up Figure 1.
The box will contain all the possible constraints but not all will be selectable. The only selectable constraints are the ones that apply to the entities selected.
For example, if you selected Figure 1. Relationships between entities can also be established using this tool. This is a windows multi-select task, which is accomplished by, holding down the CTRL key while selecting both lines. Both lines will highlight. This is a very helpful tool but be aware you may not always end up with what you started with. Remember, entities will not always stay attached as other entity values change.
CATIA V5 will remember the relationships the different entities have with each other, if they were created with a relationship. For example, if the end point of one line is the same as the start point of another line it does not mean there is any relationship between the two lines.
To use this tool follow the steps listed below: This will start the animation from the starting limit to the ending limit. The Animate Constraint window has other options that you can test. Notice: If your profile has entities created without relationship to other entities the Rewind button could result in a different profile than what you started with.
It can help you visualize the change. It allows you to visualize without committing to a particular value. Your profile updates automatically. Select the More button to get detailed constraint information. Double click on the constraint on the bottom line of the base leg. From the Constraint Definition window select the More button. The pop up window gives you information on other entities the selected constraint is connected linked to.
It gives you the opportunity to change the name of the constraint that shows up on the Specification Tree. It is possible to over constrain a profile in Sketcher Work Bench. The two constraints can be correct individually but collectively have conflicting values. Purple is the default color for over constrained sketches.
Remember an over constraint condition is not a good thing. The easiest way to get out of the over constrained condition is to Undo or Cut the last constraint created, the constraint that caused the over constrained condition. You must reconsider which constraints are necessary to accomplish what you want. If your profile is not over constrained, you are ready to move on to the next step.
If the instructions were followed an over constrained condition will not exist. As a reminder the following conditions will not allow you to successfully extrude your profile once out of the Sketcher Work Bench. Notice the profile has a gap in it. Notice there is a line not attached to any other entity, it is floating. Notice both profiles are closed profiles but there are two of them.
The two profiles have to be separate sketches. Notice this example shows that one line is being dimensioned two different ways. The Exit icon is located in the top right of the Sketcher Work Bench. The Sketcher Work Bench grid disappears.
The tools on the right hand tool bar will change, as shown in Figure 1. The only tools available for your use at this time are Pad, Shaft, Rib and Loft.
The Pad tool is covered in Step 22 and Lesson 2. The next step will tell you how to use the PAD tool. If your screen looks similar to Figure 1. This is where you find out if there are any problems with your profile sketch created in the Sketcher Work Bench.
If it is not still highlighted, select the profile or select the Sketch branch from the Specification Tree. When the profile is highlighted you can select the Pad icon. This will bring the Pad Definition window up Figure 1. As the Pad Definition window pops up you should notice your profile becomes 3 dimensional. At this point you can specify how long to extrude the profile.
You can type it in or select the up arrow and watch the part grow. Select the down arrow and watch it shrink. If these are not enough options you can select the More button in the Pad Definition window Figure 1. The More button will let you specify the start location First Limit: and the ending plane Second Limit: of the profile being extruded. The More button will allow you to select an extruded direction other than the default direction, which would be normal to the sketch plane.
If you are not satisfied with the result select the Cancel button. If you are satisfied select the Ok button. The Ok button will create a three dimensional part from your sketch. Your extrusion should look like Figure 1. Before saving and exiting make sure you have finished all operations you have started. CATAPart extension. The extension is automatic. What is the definition of a constraint?
What is meant by an unclosed profile? Can an unclosed profile be extruded? What does anchoring the profile do in the Sketcher Work Bench? How many different ways can you select the XY plane? Explain how you would change the Sketcher units of measurements from mm to inches. The Sketcher Grid is made up of two different entities, one is the Primary Spacing, name the other? What is the advantage of constraining a profile in the Sketcher Work Bench? How do you modify a constraint?
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