Abstract: The side‐sway effective length of a crane jib is investigated. For jibs with uniform cross section, restraints provided by the derrick, hoist cable and tower are also considered. When the jib end is completely fixed at the ...

Abstract: The moment‐ratio method developed is a numerical procedure to determine the natural frequencies of continuous orthotropic and isotropic plates. The basic concept employs dynamic flexibility functions at the panel joints. ...

Abstract: The numerical formulas are presented for quick determination of natural frequencies of orthotropic and isotropic continuous uniform plates. A one‐way continuous plate consists of two types of independent vibration modes ...

Abstract: The writers are concerned with the free vibration of discrete undamped linear dynamic systems commonly designed in structural engineering. The primary purpose is to present a rational method for improving the natural modes ...