Structural damage identification based on dynamic deflection sensitivity of bridge under vehicle loading

Performance of Bridge Timber Ties under Static and Dynamic Loading

A dramatic increase in railway car axle loads has occurred over the past 50 years. This paper presents the results of an experimental program undertaken at the University of Manitoba to evaluate the structural performance and durability of treated timber bridge ties under different load levels. A portion of a prototype bridge deck, consisting of eight prototype timber ties, was tested under var...

Ziejewski 1 DYNAMIC RESPONSE OF HEAD UNDER VEHICLE CRASH LOADING

In this paper, a three-dimensional (3-D) nonlinear finite element (FE) method is used in association with the Articulated Total Body (ATB) biodynamics method, to study the human brain response under dynamic loading. The FE formulation includes the detailed model of the skull, brain, cerebral-spinal fluid (CSF), dura mater, pia mater, falx and tentorium membranes. The brain is modeled as viscoel...

Structural Damage Identification of Plate Structures based on Frequency Response Function and Natural Frequencies

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...

designing unmanned aerial vehicle based on neuro-fuzzy systems

در این پایان نامه، کنترل نرو-فازی در پرنده هدایت پذیر از دور (پهپاد) استفاده شده است ابتدا در روش پیشنهادی اول، کنترل کننده نرو-فازی توسط مجموعه اطلاعات یک کنترل کننده pid به صورت off-line آموزش دیده است و در روش دوم یک کنترل کننده نرو-فازی on-line مبتنی بر شناسایی سیستم توسط شبکه عصبی rbf پیشنهاد شده است. سپس کاربرد این کنترل کننده در پهپاد بررسی شده است و مقایسه ای ما بین کنترل کننده های معمو...

An Investigation Into the Vehicle-Curved Bridge Dynamic Interaction