ON THE VIBRATIONS GENERATED BY WOODEN CHURCH BELLS
Journal Title: ROMANIAN JOURNAL OF TECHNICAL SCIENCES - APPLIED MECHANICS - Year 2011, Vol 56, Issue 3
Abstract
In Maramures County, Romania, there is Budesti Josani wooden church inscribed on the World Heritage List. The major deterioration of its 18th and 19th paintins represent a big problem in restoration program. The vibrations generated by the bells produced cracks and detachments in the paintings layer. In order to calculate the oscillations of a bell, the bell and its clapper were simulated as a double pendulum.
Authors and Affiliations
Migdonia GEORGESCU
A VIRTUAL INTERNAL BOND MODEL FOR HYSTERETIC MEDIA
In this paper, the properties of the hysteretic media are investigated via the virtual internal bond model (VIB) derived from the hyperelasticity with the integration of the 6–12 Lennard-Jones atomic interacting potentia...
COMPUTING OF THE LEVAVASSEUR TYPE AIR-JET FLAT GENERATOR WITH TWO RESONATORS
The paper proposes a method of dimensional and parametric calculation of the air-jet Levavasseur flat generator with the two resonators. Acoustic research results of the generator with two cylindrical resonators designed...
ESTIMATION OF OUT OF PLANE SHEAR MODULI FOR HONEYCOMB CORES WITH MODAL FINITE ELEMENT ANALYSES
The main problem in analyzing honeycomb structures is the substantial computational effort that has to be spent in modelling and analyzing such a structure with a multi-cell construction core by maintaining the actual ge...
SONOELASTIC DETERMINATION OF THE KNEE CARTILAGE ELASTICITY
Sonoelasticity and Doppler imaging are applied in this paper to detect the damage process of the knee cartilage. The cartilage is a firm, thick, slippery tissue that acts as a protective cushion between bones. It is pres...
MULTI-SLIP AND NON-LOCAL EVOLUTION EQUATIONS IN FINITE ELASTO-PLASTIC MATERIALS WITH DISLOCATIONS
The paper deals with elasto-plastic models which describe the behaviour at large strain of materials with crystalline structure, which contain continuously distributed dislocations. The non-local evolution equations for...