Engineering Programs
This is a list of the programs I wrote for my Intro to Engineering class during my high school senior year. They are among my first TI-89 programs. I hope to finish the programs soon and maybe link each one to its own page with a description and instructions on how to use it.
When inputting data, make sure use the "real" angle. If a force is pointed down, but shown at an angle of 20 degrees from the horizontal, count that as 200 degrees (180+20). Alternatively, use a negative sign before the force, but do not use both the real angle and a negative sign in front of the force.
This program can calculate the reaction forces of connectors (pins, rollers, or stationary) caused by one or more forces. The download is the same as the Truss Force Calculator download. Please read "readme.txt" in the zip file.
This program calculates the reaction forces of the connections using the Reaction Force Calculator (required) then calculates the forces in each beam in the truss (if possible) using the principles of equilibrium: the sum of all forces in the X and Y directions (or any other direction) = 0, and the net moment on a point is equal to zero. The download also contains the Reaction Force Calculator and other programs/functions necessary, including the distributed load calculator and a moment calculator. Please read "readme.txt" in the zip file.
This program calculates the equivalent force and distance of one or more distributed loads. The most common example in simple problems is wind.
This program solves any variable in the equation for the power produced by a windmill including the power output of one windmill (and the number needed), the efficiency, the altitude, the temperature, necessary radius of the wing, etc.
Solar Panel Program - TI-89 - Regular Version - Langley Version (use this if the energy received from the sun in in langleys)
This program can calculate the power output of a solar panel of a specified size or solve for any other variable in the equation. You will need to know the number of the day in the year or put in 182.5 to get the average.
This program calculates the resultant vector magnitude and angle given an input of any number of vectors.
This program calculates the moment on an object with an input of the forces and their angles.