This paper addresses an active structural acoustic control (ASAC) approach to reduce sound transmission through an aircraft trim panel. The focus is on the practical implementation of the virtual mechanical impedance approach through self-sensing actuation instead of using sensor-actuator pairs. The experimental setup includes two sensoriactuators designed from an electrodynamic inertial excite...

The SMART-I aims at creating a precise and coherent virtual environment by providing users with both audio and visual accurate localization cues. It is known that for audio rendering, Wave Field Synthesis, and for visual rendering, Tracked Stereoscopy, individually permit high quality spatial immersion within an extended space. The proposed system combines these two rendering approaches through...

This paper proposes a fault tolerant control (FTC) strategy based on the use of quasi-linear parameter varying (qLPV) virtual actuators approach for proton exchange membrane (PEM) fuel cells. The overall solution relies on adding a virtual actuator in the control loop to hide the fault from the controller point of view, allowing it to see the same plant as before the fault, in this way keeping ...

A rehabilitation system using mechatronics, virtual reality can provide interactive therapy that engages the user’s interest. It can also offer a simple and flexible environmental setup with precise recursive training and can gather training data at the same time. Several kinds of virtual reality applications are currently available in this field. For example, MITMANUS, MIME (Mirror Image Movem...

In this paper, we describe the framework created for implementing AI-based animations for artificial actors in the context of IVE (Intelligent Virtual Environments). The minMin-HSP (Heuristic Search Planner) planner presented in [12] has been updated to deal with 3D dynamic simulation environments, using the sensory/actuator system fully implemented in UnrealTM and presented in [10]. Here, we s...

Magnetic resonance elastography (MRE) is a promising method for health evaluation and disease diagnosis. It makes use of elastic waves as a virtual probe to quantify soft tissue elasticity. The wave actuator, imaging modality and elasticity interpreter are all essential components for an MRE system. Efforts have been made to develop more effective actuating mechanisms, imaging protocols and rec...

Previous work in event-based haptics has demonstrated that augmenting position-based force feedback with highfrequency impact transients significantly improves the realism of virtual contact. Transients can be portrayed more accurately by accounting for the dynamic relationship between actuator force and hand acceleration, a technique we call acceleration matching. This work extends the method ...

The objective of this paper is to describe the development of an educational purpose computerbased simulator for Hybrid Electric Vehicle (HEV) technology. The tremendous capital investment, tedious and time-consuming tasks required to establish a full function of HEV laboratory are convincing evidence that the HEV curriculum is in need of a low-cost, computerbased virtual HEV simulator. An inte...

In this paper, adaptive tracking control is proposed for a class of uncertain multi-input and multi-output nonlinear systems with non-symmetric input constraints. The auxiliary design system is introduced to analyze the effect of input constraints, and its states are used to adaptive tracking control design. The spectral radius of the control coefficient matrix is used to relax the nonsingular ...