Wave Effects in Vibration Mounts

Vibration control of an automotive engine using active mounts

In this research, vibration control of national engine (EF7) using active mounts is studied for two different mounting layouts. The first layout is based on the current engine mounting of national engine (system of three passive mounts), but the hydraulic mount is substituted by an active mount. The other mounting layout contains 4 mounts, 2 of which are active ones and the others are passive m...

Relieving the effect of static load errors in nonlinear vibration isolation mounts through stiffness asymmetries

High Static Low Dynamic Stiffness (HSLDS) mounts consist of nonlinear springs that support a high static load with low static displacement, whilst maintaining locally low stiffness near equilibrium, to give a low natural frequency and consequently good isolation properties. Recent analysis has investigated such devices when the force-displacement relationship is an odd function about the equili...

Business pressure mounts

The British government is seeking to follow the US model of allowing universities to charge variable top-up tuition fees to students which may vary according to institution and course chosen. The prospect has fuelled a fierce debate with many of the government's own MPs opposed to the proposed changes. Both alarm bells among some academics and fresh hope for cash-strapped universities have been...

Study on Free Vibration and Wave Power Reflection in Functionally Graded Rectangular Plates using Wave Propagation Approach

In this paper, the wave propagation approach is presented to analyze the vibration and wave power reflection in FG rectangular plates based on the first order shear deformation plate theory. The wave propagation is one of the useful methods for analyzing the vibration of structures. This method gives the reflection and propagation matrices that are valuable for the analysis of mechanical energy...

Long-wave Marangoni instability with vibration