Nonlinear Dynamic Response Optimization Using the Equivalent Static Loads for a Joined-Wing

TL;DRAbstract

The joined-wing airplane proposed by Wolkovich in 1986 is defined as an airplane that incorporates tandem wings arranged to form diamond shapes in both top and front views. The joined-wing can lead to increased aerodynamic performances as well as reduction of the structural weight. However, the joined-wing has high geometric nonlinearity under the gust load. The gust load acts as a dynamic load. In previous researches, linear dynamic response optimization and nonlinear static responses optimization are performed. In this research, nonlinear dynamic response optimization of a joined-wing is carried out by using "equivalent static loads," a concept expanded and newly proposed for nonlinear dynamic response optimization. Equivalent static loads are the load sets which generate the same response field in linear static analysis as that from nonlinear dynamic analysis by repeated use of linear response optimization. For the verification of efficiency of the proposed method, a simple nonlinea

Chat with Paper

AI Agents for this Paper