Genesis 15 1 After these things the word of the Lord came unto Abram in a vision, saying, Fear not, Abram: I am thy shield, and thy exceeding great reward. 2 And Abram said, Lord God, what wilt thou give me, seeing I go childless, and the steward of… Read more
As a necessary disclaimer, there are times that we need to leave a relationship or situation for our physical or mental safety. Our obligation to forgive a perpetrator does not require us to remain in an abusive relationship. There are other, less extreme, cases where… Read more
This is a work-in-progress. Here are some slide presentation with an emphasis on launch vehicles. Equivalent Static Loads for Random Vibration & Alternate Link Damping & Isolation & Alternate Link Liftoff Vibroacoustics & Alternate Link Ascent Vibroacoustics & Alternate Link Launch Vehicle Pogo, Combustion Instability… Read more
Eli was the High Priest of Shiloh and also a Judge of Israel. He was also the “Prophet.” Eli faithfully served as a father figure to Samuel. He also had the wisdom and inspiration to realize that Samuel should be the next high priest, rather… Read more
Structural system & component damping can measured via modal testing with applied force excitation. One excitation method is an impulse hammer test. Another method is a small shaker attached to structure via a stinger rod. Damping can also be measured by mounting the test unit… Read more
Structural damping depends on materials, joints, boundary conditions, friction, acoustic radiation, etc. Damping may be nonlinear, increasing as the excitation and response levels rise. The damping for a given structure or component must be measured! But here is some empirical background data… Papers Damping Properties of… Read more
For the past eight years, I have written a required monthly status report to another organization for my NASA contractor work. I have written my accomplishments and planned work in short, concise sentences, usually in numbered list format. I was then notified by this organization… Read more
There is a widely-taught principle in my church that “Obedience is the first law of heaven.” This may have been an extrapolation from Alexander Pope’s quote that “Order is heaven’s first law.” But discernment must precede obedience. The Lord placed Adam and Eve in the… Read more
Shock and vibration analysis can be performed either in the frequency or time domain The time domain method requires more computation time but is much better suited for transient and nonstationary excitation Time domain methods are also better for rainflow fatigue cycle counting Students should… Read more
We are not human beings having a spiritual experience; we are spiritual beings having a human experience. – Pierre Teilhard de Chardin (1881-1955) Quoted by: President Thomas S. Monson, BYU Devotional Be a Light to the World, November 1, 2011 * * * * *… Read more