1 MATLAB-Based Flight-Dynamics and Flutter Modeling of a Flexible Flying-Wing Research Drone Dr. David K. Schmidt University of Colorado [email protected] Abstract A relatively low-order, linear dynamic model is developed for the longitudinal flightdynamics analysis of a flexible, flying-wing research drone, and results are compared to previously published results. The model includes the dynami...

cooperative object manipulation control of rigid-flexible multi-body systems in space is studied in this paper. during such tasks, flexible members like solar panels may get vibrated that in turn may lead to some oscillatory disturbing forces on other subsystems, and consequently produces error in the motion of the end-effectors of the cooperative manipulating arms. therefore, to design and dev...

A method is presented for estimating the size of bearing raceway defects that are larger than the angular spacing between balls. Previous defect size estimation techniques cannot be used for such defects since they are limited to defects that are smaller than the ball angular spacing. The reason for this is that two defects that differ in size by the ball angular spacing produce the same time d...

Cooperative object manipulation control of rigid-flexible multi-body systems in space is studied in this paper. During such tasks, flexible members like solar panels may get vibrated that in turn may lead to some oscillatory disturbing forces on other subsystems, and consequently produces error in the motion of the end-effectors of the cooperative manipulating arms. Therefore, to design and dev...

the aim of the current study was to determine the pattern, presentation and management of foreign body aspiration in our  population.  this prospective study comprised 55 patients with foreign body aspiration admitted to our department from january 2009 to december 2011. all patients underwent rigid bronchoscopy under local or general anesthesia. the patients’ demographic information along with...

foreign body ingestion and aspiration is among the most common causes of emergency department visit associated with high morbidity and mortality. ingested and aspirated denture is rare conditions being scarcely reported in the literature. we herein report a 57-year-old man who presented with 2-day history of liquid and solid dysphagia who was diagnosed to have impacted denture in esophagus sinc...

This paper presents the implementation of advanced domain decomposition techniques for parallel solution of large-scale shape sensitivity analysis problems. The methods presented in this study are based on the FETI method proposed by Farhat and Roux1 which is a dual domain decomposition implementation. Two variants of the basic FETI method have been implemented in this study: (i) FETI-1 where t...

introduction: foreign-body aspiration is still considered one of the most important diagnostic and therapeutic issues for physicians. mortality rates and the prevalence of diseases caused by foreign bodies in the airway are higher in children because of the relatively narrow airway and immature protective mechanisms. the aim of this study was to study the pattern of foreign-body aspiration in t...

A technique using augmented sliding mode control for robust, real-time control of flexible multiple link robots is presented. For the purpose of controller design, the n-link, n-joint robot is subdivided into n single joint, single link subsystems. A sliding surface for each subsystem is specified so as to be globally, asymptotically stable. Each sliding surface contains rigid-body angular velo...