Categories
RSS Feed
Search NewtonExcelBach
Archives
Top Posts
- Time in hours and minutes between two dates
- Commenting a block of code in VBA
- Cubic Splines
- Using Goal Seek on Multiple Cells
- Using LINEST for non-linear curve fitting
- Solving Quadratic, Cubic, Quartic and higher order equations; examples
- Downloads by category
- Downloads
- Weighted Least Squares Regression, using Excel, VBA, Alglib and Python
- Using Linest for non-linear curve fitting, examples, hints and warnings
Recent Comments
Tag Archives: Excel. VBA
3D Frame with zero stiffness hinges
The previous version of 3DFrame allowed for spring releases at beam ends, but if the release stiffness was entered as zero it was treated as a rigid connection for that freedom. Effectively zero stiffness releases could be modelled by entering … Continue reading
3DFrame with spring releases
Following the previous post I have added similar functionality to the 3DFrame spreadsheet. The new file can be downloaded from: 3DFrame.zip As before, see Installing C# dll files, reminder for details of installing the supplied dll files, which provide much better … Continue reading
Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Newton, Strand7, VBA
Tagged 3D frame analysis, Excel. VBA, moment release, spring end release, Strand7
8 Comments
Frame analysis with spring releases; 2D
I have updated the Frame4 spreadsheet to allow a rotational spring stiffness to be specified for members with a rotational end release. The new file can be downloaded from: Frame4.zip See Installing C# dll files, reminder for details of installing the … Continue reading
Posted in Beam Bending, Excel, Finite Element Analysis, Frame Analysis, Link to dll, Newton, Strand7, VBA
Tagged Excel. VBA, Frame Analysis, moment release, spring hinges, Strand7
1 Comment
xlSciPy 1.01
The xlSciPy spreadsheet, introduced here, has been updated with many new functions. The new version, including full open source code (VBA and Python) can be downloaded from: xlSciPy.zip The spreadsheet requires Python to be installed, including NumPy and SciPy. It … Continue reading
Posted in Excel, Link to Python, Maths, Newton, NumPy and SciPy, UDFs, VBA
Tagged Excel. VBA, ExcelPython, Fast Fourier Transform, Python, SciPy distance functions, sparse solvers, UDF
Leave a comment
Using the AlgLib ODE (Runge-Kutta) Solver with Excel
Or to be more correct, the AlgLib Cash-Karp Solver, Cash-Karp being a refinement of the Runge-Kutta method of solving ordinary differential equations. Solution of differential equations is an iterative process requiring the repeated application of the solver routine followed by evaluation of … Continue reading
Posted in AlgLib, Beam Bending, Differential Equations, Excel, Maths, Newton, UDFs, VBA
Tagged AlgLib, buckling, Cash-Karp, differential equations, Excel. VBA, hole through the middle of the earth, Runge-Kutta, SHM, UDF
8 Comments