Event 25: Semi-active Vibration Suppression - The Best from Active and Passive Technologies

Vibration suppression is an important issue in many fields of engineering, ranging from earthquake mitigation in civil engineering structures to sub-micron jitter in precision engineering. Typical critical vibration amplitudes go from meters (e.g. wind response of a cable-stayed bridge) to a few nanometers (e.g. optical telescope, atomic force microscope, wafer stepper in semi-conductor lithography machines). Passive vibration absorbers have been available for a long time (Den Hartog, 1947) and, more recently, a number of promising applications of active vibration suppression have been developed. Active control brings more performance, but at the expense of more technological sophistication, more cost, less robustness and more energy consumption, and this is why it has found relatively little applications outside the research labs, except in precision engineering. Semi-active control may remove several of the drawbacks of active control, by combining the robustness of purely passive methods with drastically reduced energy requirements. In many cases, however, it operates as a parametric controller, which is strongly nonlinear, and cannot be designed according to classical feedback theory. Smart (or multi-functional) materials respond to stimuli of multiple physical natures (such as mechanical, electrical, magnetic, thermal, etc...). They can be used for transducers and energy conversion devices (e.g. piezoelectric materials converting mechanical energy into electrical energy and vice versa), but also to modify the constitutive parameters of materials (e.g. magnetorheological (MR) fluids, MR polymers).

Fellowships

10 fellowships (8 of Group 1, 1 of Group 2 and 1 of Group 3) are offered to young participants to attend the workshop.
Eligibility
Applicants must:
-have a degree giving access to doctoral studies (Master, Diploma degrees, DEA...., and have started studies towards a PhD)
-have less than 10 years experience since the begining of the PhD degree program
-be a citizen of the European Union or of its Associated States
-be in a research activity inside the EU or its Associated States.
Selection criteria for max. 10 participants:
•8 PhD students from Member or Associated States (see full list on CISM’s website)
•1 “Early stage researchers” from Member or Associated States
•1 “Experienced researcher” with up to 10 years of experience from Member or Associated States
•Gender balance (at least 40% of female participation)
•Regional balance (only 30% of funded researchers may be nationals of the same country)
•Quality of past research
•Must speak English.
Further information on fellowships and applications procedures are available on CISM website: http://www.cism.it/ under Activities, Courses and Other Events, Programme 2007.

When

2007-10-01 09:00 to
2007-10-05 18:30

Deadlines

Requests should be sent to CISM Secretariat by July 16, 2007 together with the applicant’s curriculum and a letter of recommendation by the head of the department or supervisor confirming that the institute cannot provide funding. Students should apply on CISM website. A letter of confirmation will be sent to accepted participants by August 30, 2007.

Where

CISM, Udine, Italy

Contact

Sara Gutilla

Contact Email

S.Guttilla@cism.it

Contact Phone

+39 0432 248 543

For more information, visit
http://www.cism.it/
http://www.cism.it/cism/p2007/annC0709.pdf