Design Engineering

designer banner 3Mechanical designers work with engineers using computer design software to create from sketches and even field work, technical drawings for equipment, foundations, and facilities.

 

 

 

 

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Nomenclature & Symbols

 

  • \( ACE \)  -  Architecture, Eengineering and Construction
  • \( CTR \)  -  center
  • \( C-C \)  -  center to center
  • \( CL \)  -  centerline
  • \( CAD \)  -  Computer Aided Design
  • \( CADD \)  -  Computer Aided Design and Drafting
  • \( CAE \)  -  Computer Aided Engineering
  • \( CAM \)  -  Computer Aided Manufacturing
  • \( DWG \)  -  drawing
  • \( DES \)  -  designer
  • \( DSGN \)  -  design
  • \( EDA \)  -  Electronic Design Automation
  • \(FLG\)  - flange
  • \( HORIZ \)  -  horizontal
  • \( NTS \)  -  not to scale
  • \( OC \)  -  on center
  • \(PDMS\)  -  pipe design management system
  • \(PI\)&\(D\)  -  piping and instrumentation diagram
  • \(PFD\)  -  process flow diagram
  • \(  REV \)  -  revision
  • \( STD \)  -  standard
  • \( VERT \)  -  vertical

 

Design Engineering Glossary

A

  • Angle  -  Two rays sharing a common point.

B

  • Base point  -  The point on a parametric sketch that remains fixed to the coordinate system.
  • Block diagram  -  A schematic drawing that shows the relationahip in a systen using simple shapes.

C

  • Center line  -  A linetype used to indicate the axis of symmetry of a hole or part.
  • Circumscribed (outside)  -  A circle that touches every vertex.
  • Coordinate  -  Any point on a plane.
  • Coordinate plane  -  A plane having a horizontal and vertical axis number line intersecting at the origin.

D

  • Datum plane  -  A geometric reference point for parametric dimensions.
  • Dimension line  -  A type of line used when applying dimension to a drawing.
  • Design constraint  - A line on the range of options that is acceptable.
  • Drawing revision  -  Drawings are typically released and revised as the design process progresses.  Depending on the companies engineering and construction requirements depends on how the drawings are releases.
  • Dynamic assembly  -  An assembly model in which parts are linked to their individual part files so the software can update the assembly when individual part files are modified.

E

  • Electrical schedule  -  Tabulation of conduit, conductors and/ or cable quantities that are routed through various raceways for the purpose of connecting components of an electrical system.
  • Equipment location plan  -  A drawing created to show the location of equipment relative to other pieces of equipment.
  • Exploded  -  An assembly in which parts are moved out of position along a axis so that each individual part is visible.
  • Export  -  To save data from one application in a file format that can be read by another software application.

F

  • Face  - A planar surface on an object bounded by edges when it intersects other surfaces.
  • Flange  -  A flattened collor or rim around a cylindrical part to allow for attachment.

G

  • Global parameters  - Parameters that are common to more than one part in an assembly.

H

  • Hard copy  -  Printed or plotted materials.
  • Hatch line  -  A series of parallel lines drawn on a diagonal to indicate a surface created by a cut.
  • Hidden line  -  A type of line that represents an edge that is not directly visible because it is behind or beneath another surface.

I

  • Inscribed (inside)  -  A sphere that touches the center of every faces.
  • Interface  -  The portion of a system or device used to interact with or control it.
  • Intersection  -  The point at which two points or surfaces meet, or the area shared bt overlapping surfaces.

J

K

L

  • Limit tolerance  -  A tolerance that states the maximum and minimum allowable dimension, not the basic dimension value.
  • Line designation  -  Flow lines should be labeled to show pipe size, line service identification, line number, line material, piping class and the line pressure rating.

M

  • Match line  -  A match line is used to denote a cut line between two or more drawings where the area is to large for one drawing.
  • Machining scale  -  A steel ruler with its smallest divisions 0.01 inch apart.

N

O

  • Offset  -  The distance from an existing object at which a new object will be created.
  • On plot  -  Large and/or complex facilities require demarcation between hazardous and nonhazardous areas.
  • Over dimensioning  -  Showing the same dimension more than one way in the drawing.

P

  • Part drawings  -  Individual drawings prepared for each part that will be manufactured or modified for the project.
  • Parting line  -  A line on a molded part where the two mold halves come togeather.
  • Paper size  -  A plot size, drawing size or paper size is the size that the drawing is plotted on.

  • Pipe design management system  -  Was developed by AVEVA formerly CAD Center in UK.  PDMS as it is known in the 3D CAD industry, is a customizable, multi-user and multi-discipline, engineer controlled design software package for engineering, design and construction projects in, but not limited to, offshore and onshore oil & gas industry, chemical & process plants, mining, pharmaceutical & food industry, power generation and paper industries.
  • Piping and instrumentation diagram  -  In the design process, a piping and instrumentation diagram, abbreviated as P&ID, is created following the Block Flow Diagram and Process Flow Diagram.
  • Piping and Instrumentation Diagram/How To  -  It is important that the Piping and Instrumentation Diagram contains all the information for the process because this is the basis for the Piping Design and HazOP.
  • Process flow diagram  -  Shows the relationships between the major components of a system or process plant. The PFD is more detailed than a Block Flow Diagram but does not contain as much detail as Piping and Instrumentation Diagram P&IDs.

Q

R

S

  • Schematic diagram  -  A schematic diagram or elementary diagram shows every wire and device involved in the control of an electrical load.
  • Service classification  -  Service class is a one to three letter designation that shows what service the line is in.  It is typically shown on a Piping and Instrumentation Diagram as part of the line numbering system.
  • Solid modeling  -  A type of 3D modeling that represents the volume of an object, not just its lines and surfaces.
  • Static assembly  -  An assembly that does not update when individual part files change.
  • Storyboard  -  Pictures that dipict the sequence and composition of key events in an animation.
  • Subassembly  -  A group of parts that fit togeather to create one functional unit.
  • Surface modeling  -  A three-dimensional modeling that defines only surfaces and edges.
  • System variables  -  Settings that control the default operation of a CAD package.

T

  • Template  -  A drawing with certain settins that can be used repeatedly as the basis for starting a new drawing.

U

  • Update  -  To regenerate the model or drawing using any new dimension values or changed perameters.
  • User coordinate system  -  A coordinate system defined by the user to assist in creating CAD geometry.

V

  • Vanishing point  -  A location where the projections converge in a perspective drawing.
  • Vertex  -  A point where two or more curves, edges, or lines meet.

W

  • Wiring diagram  -  The purpose of wiring diagrams are to provide the installer with the information required for terminating the individual conductors at various points.
  • Working drawing  -  Drawings that convey all the information needed to manufacture and assemble a design.

X

Y

Z

 

Display #
Title
Cantilever Pipe Support
Cantilever Pipe Support Vessel
Chain Pipe Support
Clamp and Saddle Pipe Support
Concrete Anchoring

Tags: Drawings