Vibration Isolation Review: II. Shock Excitation

Disturbance Observer-Based Automotive Engine Vibration Isolation Dealing With Non-linear Dynamics and Transient Excitation

Active automotive engine vibration isolation is considered where both stationary and transient engine-induced excitations as well as plant non-linearity are considered. The adopted control strategy targets the dominating spectral components of the excitation and achieves narrow band vibration isolation using feedback of disturbance states estimates. Time-varying gain-scheduled observer design, ...

Vibration, Mechanical Shock, and Impact

Time-varying forces and accelerations occur in daily life, and are commonly experienced, for example, in an elevator and in aircraft, railway trains, and automobiles. All of these situations involve motion of the whole body transmitted through a seat, or from the floor in the case of a standing person, where the human response is commonly related to the relative motion of body parts, organs, an...

Acoustics • Shock • Vibration • Signal Processing

Computer Shock and Vibration Concerns

INTRODUCTION Digital microcomputers are ubiquitous. Computers inside the space shuttle control its descent from orbit until it slows to Mach 1, the speed of sound. At this time, the pilots gradually take over control and prepare for landing. Computers inside satellites provide a myriad of functions. For example, a satellite computer might record sensor data for later transmission to Earth groun...

A New Approach to Shock Isolation and Vibration Suppression Using a Resetable Actuator

@1# Bryson, Jr., A. E., and Ho, Y-C., 1975, Applied Optimal Control, Optimization, Estimation, and Control, Hemisphere, New York. @2# Anderson, B. D. O., and Moore, J. B., 1990, Linear Optimal Control, PrenticeHall, NJ. @3# Chankong, V., and Peng, T. K. C., 1983, Multiobjective Decision Making— Theory and Methodology, Elsevier, New York. @4# Thompson, A. G., 1976, ‘‘Active suspension with optim...