Downloads & Free Reading Options - Results

Traditionally, structural loads are measured using strain gages. A loads calibration test must be done before loads can be accurately measured. In one measurement method, a series of point loads is applied to the structure, and loads equations are derived via the least squares curve fitting algorithm using the strain gage responses to the applied point loads. However, many research structures are highly instrumented with strain gages, and the number and selection of gages used in a loads equation can be problematic. This paper presents an improved technique using a genetic algorithm to choose the strain gages used in the loads equations. Also presented are a comparison of the genetic algorithm performance with the current T-value technique and a variant known as the Best Step-down technique. Examples are shown using aerospace vehicle wings of high and low aspect ratio. In addition, a significant limitation in the current methods is revealed. The genetic algorithm arrived at a comparable or superior set of gages with significantly less human effort, and could be applied in instances when the current methods could not.

1Letters of Lord Nelson to Lady Hamilton, Volume I

By Horatio Nelson

Horatio Nelson, 1st Viscount Nelson, 1st Duke of Bronté, KB (29 September 1758 – 21 October 1805) was an English flag officer famous for his service in the Royal Navy, particularly during the Napoleonic Wars. He won several victories, including the Battle of Trafalgar in 1805, during which he was killed. These are the letters that he wrote to Lady Hamilton, with whom he was having a notorious affair until his death in 1805. (Summary by Wikipedia)

2Letters of Lord Nelson to Lady Hamilton, Volume II

By Horatio Nelson

Horatio Nelson, 1st Viscount Nelson, 1st Duke of Bronté, KB (29 September 1758 – 21 October 1805) was an English flag officer famous for his service in the Royal Navy, particularly during the Napoleonic Wars. He won several victories, including the Battle of Trafalgar in 1805, during which he was killed. These are the letters that he wrote to Lady Hamilton, with whom he was having a notorious affair until his death in 1805. (Summary by Wikipedia)

3Fox That Wanted Nine Golden Tails

By Kathleen Gray Nelson

A fox aspires to reach his 1000th birthday safely and be rewarded with nine golden tails in this wise and charming fairytale.

4Silver Chimes in Syria: Glimpses of a Missionary's Experiences

By William S. Nelson

William S. Nelson, D.D., was appointed as a missionary to Syria by the Board of Foreign Missions of the Presbyterian Church, USA in 1888. In this short works, as the title suggests, he gives glimpses into his life as a missionary against the background of Syrian culture.