This paper investigates the non-linear free and forced vibration response of immovable simply-supported composite rectangular plates. The plates are symmetric and are subjected to a transverse pressure which is harmonic in time. A novel procedure is implemented to obtain the non-linear ordinary differential equation by using first order shear deformation theory and Galerkin method. The multiple time scales perturbation method is utilised to obtain an analytical closed-form expression for the non-linear frequency and frequency response equation of the studied plates. After validation of present study with available literature, the non-linear free and forced vibrations of a fibre-metal laminated plate, named Glare 3, have been investigated. Also, the effects of some system parameters on the non-linear frequency have been studied.
- Inderscience Publishers
- Non-linear vibration response of laminated fibre-reinforced ...
Chemical Spill Response Products & Procedures
The current political and world climate has forced the Emergency Response Community to take a closer look at the number of potential hazards that they may be called upon to deal with. Of particular concerns are the response to terrorist and/or chemical incidents. Depending on the type of event, responders may be faced with a myriad of challenges and onsite dangers. With a chemical release, the situation will be immediately apparent, as numerous individuals become incapacitated in a very short period of time....
Geli Enables BMW EV Demand Response Program - Case Study
Challenge BMW Technology Group planned to launch a ground-breaking electric vehicle (EV) program called i ChargeForward that would allow individual BMW i3 owners to earn money by participating in demand response (DR) events. However, in order for BMW to participate in Pacific Gas & Electric’s day-ahead and real-time DR markets, it needed to guarantee 100 kilowatts (kW) of demand reduction. BMW could not guarantee that the fleet of vehicles in the field would always be plugging in and charging, so the...
First short-term noise monitoring system for airports launched
Airport Noise Monitoring On Demand increases flexibility for investigation, compliance or planned changes Brüel & Kjær today announced the release of Airport Noise Monitoring On Demand, a system that enables airports to temporarily - and cost-effectively - increase noise monitoring when needs arise. This system helps airports measure before and after operational changes, investigate complaints, show compliance and credibly communicate with the community. Airport Noise Monitoring On Demand works...
What should be in your First Aid Kit?
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Lamor & Arctia study effectiveness of oil spill response applications in ice
Arctia Karhu Oy’s harbor icebreaker, Ahto, based out of Kemi in northern Finland, is participating in oil spill response research and development in the Gulf of Bothnia, between Ajos and Tornio, during the first week of February, 2016. The ice trials will test and examine the effectiveness of mechanical oil spill response operations in ice and the behavior of oil throughout recovery operations. During the test, the flow of oil beneath the ice will be simulated by the use of Rhodamine dye, a red tracer...