Tag Archives: 3D coordinates

Defining beam orientation in 3D

Posted on 19/01/2013 by dougaj4

The principal axes of a beam (or any 2D closed shape) are defined as the axes along which an applied load will not cause any deflection in the transverse direction. In mathematical terms, if the beam cross-section is defined in the … Continue reading →

Posted in Beam Bending, Coordinate Geometry, Frame Analysis, Maths, Newton | Tagged 3D coordinates, 3D frame analysis, beam orientation, Frame Analysis, principal axes | Leave a comment

Finding Circle Centres in 3D

Posted on 18/08/2009 by dougaj4

In 2 new functions for IP.xls I described two Excel User Defined Functions (UDFs) to find the radius and centre of a circle defined by 3D coordinates for either 3 points on the circumference, or for two tangent points and the … Continue reading →

Posted in Coordinate Geometry, Excel, Maths, Newton, UDFs, VBA | Tagged 3D coordinates, Center, Circle Centre, direction cosines, Excel, IP2.xls, Radius, UDF, VBA | 5 Comments

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Tag Archives: 3D coordinates

Defining beam orientation in 3D

Finding Circle Centres in 3D

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