DynaRod's stress curve looks natural since it is drawn based on the dynamic type calculation,
The differences from static stress curve are;
By those effects, stress curve of DynaRod gives up to be the objective of rod design but becomes a practical stress distribution curve under a certain load. We can identify how stress is distributed over a rod, practically on the dynamic stress curve.
Establishing a new design criteria
Design approach via static stress curve are often used to convert an existing taper rather than designing a completely new rod taper from scratch. For instance, we often want to convert two pieces rod to three pieces and vice versa, or want to change the taper from for #4 weight line to for #5 weight, etc.. As dynamic calculation changed the positioning of stress curve from a design criteria to stress distribution graph, a new rod design criteria must be considered, especially in the dynamic calculation.
DynaRod established a new design criteria by "rod deflection" and " action genome". Genome is a pattern how a rod would act in deflection. It implies that by taking one of the action patterns, we can inherit the similar deflection to a new rod. Rod action is really like a genome.
Definition of rod deflection and action genome
Rod Deflection is an overall shape of flexure and the depth of bend form.
Action Genome is patterns of rod bending through a rod. Action genome has a similar tendency to Garrison's original stress curve, and maintain the physical relationship with rod deflection always. This nature of action genome makes rod deflection to be a practical design criteria.
The physical relationship between rod deflection and action genome can be seen in the Deflection Designer tool, which is invoked by the function [Design by deflection]. It is an Excel tool and packaged in DynaRod As it also works standalone, it can be used as a study material of rod deflection and action genome. I hope that the usage of the tool would extend the understanding what stress curve means since both are very similar.
DynaRod made it possible to design a rod (taper) from scratch, that is, to produce a new rod (taper) which has not existed. There are various types of rod tapers remained unknown yet.
About the System
DynaRod is developed on the technology of Microsoft Access, Visual Basic for Application (VBA) and Excel. Database of Access, processing by VBA and graphic capability of Excel are functionally integrated. Users can use its functions by communicating with DynaRod via Access screens.
Output of a rod from DynaRod is written into several excel files, one excel file per a function button. Even after closing DynaRod, user can look into the output excel files standalone. DynaRod did not develop its own print functions since Excel has flexible capabilities to produce print out hard copies and to make further calculations via its macro.
Components of DynaRod Package
Download package of DynaRod contains the following
Please make sure that your DynaRod directory looks like below; It is assumed that you put DynaRod home directory under \My Document folder.