نتایج جستجو برای: aeroelastic frequency response function
تعداد نتایج: 2451851 فیلتر نتایج به سال:
Abstract In this study, we focused on robotic swarms, allowing multiple anonymous autonomous robots to gather and move mutually in tasks. We proposed a method design parameter of the control barrier function (CBF) swarm so that can achieve collision-free deformation considering environmental conditions. analyzed responses perturbations swarming robots, which applied CBF. Although guarantee safe...
A finite measurement time is at the origin of transient (sometimes called leakage) errors in nonparametric frequency response function (FRF) estimation. If FRF varies significantly over resolution experiment (= reciprocal time), then these transients (leakage) cause important bias and variance estimate. To decrease errors, several local modeling techniques have been proposed literature. This ar...
In this paper, a structural damage identification method (SDIM) is developed for plate-like structures. This method is derived using dynamic equation of undamaged/damaged plate, in which local change in flexural rigidity is characterized utilizing a damage distribution function. The SDIM requires to modal data in the intact state and frequency response of damage state where most of vibration ba...
This paper investigates geometrically nonlinear aeroelastic effects on an industry-level aircraft configuration. Results are obtained via a new approach that uses geometrical information to compute and seamlessly integrates with conventional, linear load packages. The starting point is generic finite-element model frequency-domain aerodynamic influence coefficient matrices, the resulting system...
The Solar powered unmanned aircraft have a high-aspect-ratio wings because SPUAV must satisfy the requirement of long endurance and high lift-drag ratio. Therefore, the structure of SPUAV‘s wings are structurally very flexible. The very high flexible wing might have large deformation and many aeroelastic problems. In this paper have a static/dynamic aeroelastic analysis through CFD-CSD coupled ...
Identification of Linear and Nonlinear Aerodynamic Impulse Responses Using Digital Filter Techniques
This paper discusses the mathematical existence and the numerically-correct identification of linear and nonlinear aerodynamic impulse response functions. Differences between continuous-time and discrete-time system theories, which permit the identification and efficient use of these functions, will be detailed. Important input/output definitions and the concept of linear and nonlinear systems ...
A comprehensive analysis of aeroelastic systems has shown that these systems exhibit a broad class of pathological response regimes when certain types of non-linearities are included. In this paper, we propose a design method of a state-dependent non-linear controller for aeroelastic systems that includes polynomial structural non-linearities. The proposed method is based on recent numerical te...
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