Data Reduction Techniques for Flight Vibration Measurements

Data Association Techniques for Non-Gaussian Measurements

Parallel Data Reduction Techniques for Big Datasets

Data reduction is perhaps the most critical component in retrieving information from big data (i.e., petascale-sized data) in many data-mining processes. The central issue of these data reduction techniques is to save time and bandwidth in enabling the user to deal with larger datasets even in minimal resource environments, such as in desktop or small cluster systems. In this chapter, the autho...

Data Reduction Techniques for Sensor Networks

We are inevitably moving into a realm where small and inexpensive wireless devices would be seamlessly embedded in the physical world and form a wireless sensor network in order to perform complex monitoring and computational tasks. Such networks pose new challenges in data processing and dissemination due to the connict between (i) the abundance of information that can be collected and process...

Efficient Global Optimization of Helicopter Rotor Blades for Vibration Reduction in Forward Flight

The effectiveness of surrogate based optimization of helicopter rotor blades for vibration reduction using kriging global approximations is investigated. The search for the optimal design is conducted using two methods: (1) the “one-shot” approach in which the surrogate is optimized directly and (2) a method based on the expected improvement function which seeks to find optimal designs while re...

Gain-Scheduled Higher Harmonic Control for Full Flight Envelope Vibration Reduction

The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. ABSTRACT This paper investigates the dynamics of the SMART rotor, and presents a method to design a gain-scheduled controller to reduce the harmonic vibration throughout the flight envelope. The dynamics of the SMART rotor was examined at various flight conditions through nonli...