Dragonplate deflection optimized telescoping tubes are engineered using Nastran FEA composite modeling. Unlike the standard and rugged lines, optimized telescoping tube systems make use of a proprietary blend of materials, providing an ideal balance between weight, strength, and stiffness. Dragonplate works with customers to analyze a specific application and develop an optimized solution. Typical design variables include extended and retracted length, max and min tube diameters, temperature requirements, finish, impact toughness, and many others. Through trade-off studies, the Dragonplate engineering team helps customers develop truly optimized systems.
An FEA case of a cantilevered beam with 0.5 pounds acting on the end was applied to three different tube assemblies. The standard assembly is a 6 tube construction built totaling to 432" when fully extended. The slightly improved version is a 5 tube construction built using 8’ lengths out to the same extension. As the FEA indicates, due to an increase in overlap, the deflection improves by almost 18%. Finally, we optimized the system by using a 5 tube assembly with our proprietary layup. The result is almost a 30% reduction in the deflection compared to the standard construction.