Volume 4, Number 1, March, 1996 - Noise News International

• The role of mass-spring-mass resonances in sound insulationabove coincidence frequencies • The transmission lossof cavity walls. The use of high performance noise barriersin the United Kingdom. Theory and practice in dust silencerdesign. Transmission loss of simple expansion chamber withmultiple inlet/multiple outlet ports. Tuned loudspeaker enclosuresfor active noise control • Use of adaptive filters inactive ear defenders. Use of coir as a sound absorbingcomposite materialVibration andShock: Generation,Transmission, Isolation and Reduction"Good Vibrations!" (Low Noise) raised pattern road marking;stretch of test road on the A28 motorway • A comparisonbetween wave propagation techniques and transient SEA forthe prediction of shock response in one-dimensional systems• A contribution to the study of human sensitivity to randomvibrations in cars with paired comparisons • A method forestimating vibrational power supplied by the exciting force ofa machine to its supporting structure • A new method ofdetermining vibration criteria for a precision equipment usingfrequency response function • A new procedure of estimationof dependence of the optimal isolating system for asitting human operator body on the form of criterion ofvibroisolation • A program to examine risk of injury fromexposure to hand-arm and whole-body vibration at work. Astudy of dynamics and modeling of a human body exposed tomultidimensional excitation • A study of the great Hanshinearthquake on human response to environmental vibrationdue to Shinkansen • A study on the structural response of alow-rise building induced by subway operations. A waveapproach to the SEA of a coupled rectangular plate systeminvolving a non-uniform boundary condition • Acousticpropagation in a semi-infinite cylinder treated with isotropichomogeneous porous material • Acoustic radiation of theplate excited by turbulent pressure and shear fluctuations.Acoustic radiation of the plate excited by turbulent pressureand shear fluctuations. Active suspension system for driversseat. Active vibration control of operator's seat for heavymachinery • An energetic mobility for structures assembling• An estimation of coupling loss factors using structuralintensity • An evaluation of polymer beads as a dampingtreatment for Titan IV avionics and instrumentation trusses.Analysis of structural intensity of complex structures by FEM• Analysis of vibroacoustics activity of electro-mechanicaldrive systems. Analytical/experimental study of vibration ofa room-sized airspring supported slab • Application of anelastic sandwich damping treatment at high temperature environment• Application of energy flow analysis (EFA) toreduce structure borne noise inside a passenger vehicle •Assembling of vibrating structures with a non-linear intermediatejunction. Automatic control of multiple tuned vibrationneutralizers • Bending wave intensity at high frequencies •Calculation of radiation efficiency of complex structures usingfinite and infinite elements • Characterization of structure-bornesound sources by classification and equivalence.Combined effect of hand-arm vibration and noise on temporaryhearing threshold shift. Comparison of the dynamics ofa vehicle seat measured using an anthropodynamic dummyand human subjects. Defects diagnosis in rotating machinery:vibroacoustic analysis. Development and application ofstructural intensity on composite panels. Double pendulumvibration isolation facility for the electrical control cubicle ofthe vertical cement mill • Effect of arm support on force at ahand-held joystick during exposure to vertical seat vibration• Elastic constants of polyurethane foam's skeleton for BlOTmodel. Energy flows in beam networks with compliantjoints• Energy method applied to structure-borne transfer in shipstructures • Estimating structure-borne sound in buildingsusing SEA - study of varying conditions of calculations andapplication to building construction. Estimation of exposureof dwellers to train induced ground vibration. Evaluation ofthe effect of damping treatment with consideration for thechanges in vibration mode shapes. Experience with communityresponse to groundborne vibration from constructionactivity when evaluated using building damage criteria, andthe need for annoyance based criteria • Experimental determinationof noise radiation efficiency of induction machines• Experimental study of hand-arm impedance Experimentalstudy on vibration reduction by isolated railway • Finiteelement simulation of a rotor system incorporating gyroscopiceffects. Flanking path effects in the active control ofstructural power transmission. Frequency weightings for theaversion of broiler birds to horizontal and vertical vibration.Ground response to propagating airblast e Groundborne noiseand vibration control in the United States: a state-of-the- artperspective • Hand-arm vibration protection - testing andevaluating gloves offered as antivibration gloves on the Polishmarket. Hand-transmitted vibration exposure in shipbuildingand ship repair. High transmission loss design of honeycombsandwich panels. Hypersensitivity of vibroacousticsbehavior of plate lattices. Impact noise control revisited.Improvements in experimental spatial power flow using ascanning laser doppler vibrometer • Indirect measurement ofvibrational energy flow by reciprocal methods. Influence ofthe precision of modal parameters in the active control offlexible structures. Interior noise reduction in a vehicle bysensitivity analysis of engine excitation forces • Issues inweighting functions for the assessment of exposed wholebodyvibration. Manchester Concert Hall: vibration isolation• Measurement and analysis of vibrations of a hand-held tool• Measurement and characterization of sources of structurebornesound • Measurement for reduction effect of the impactsound transmission of floor finishes using small sample •Measurement of vibration intensity in U-typed shell. Modellingand control of a vibro-acoustic system. Modelling ofplate vibration using mirror-source approach. On the fuzz ina structural fuzzy. On the relationship between frequencyspace-andensemble-averaged intensity measurements. Onthe vibration field correlation offlat plate structures. On-linemodelling of flexural dynamics of flexible manipulators.Optimizing the placement of a road between two vibrationsensitiveresearch buildings • Performance of viscoelasticcylinders inside helical springs as transmissibility attenuatorsof audible frequencies. Point mobility of a "semi infinite"beam with curvature. Power flow between a master structureand a weakly coupled light subsystem. Predictability of thevibroacoustic response of semi-complex structures. Predictingstructure-borne sound propagation in an infinite reinforcedplate structure using the power flow method •Prediction of structure-borne sound in built-up plate structures• Predictions of vibration transmission and stress concentrationin straight fluid-filled pipes with flanges •Protection from hand-arm vibration by the use of gloves:possibility or fraud. Resonance oscillations of infinite andfinite elastic structures with inclusions • Rotational degreesof freedom: an investigation of their influence on the predictionof the dynamic behavior of a coupled structure. Simplifiedcharacterization of structure-borne sound sources. Sixaxes of head motion during ambulation • Some commoncharacteristics of multi-point and component structure-bornesound source • Some limitation and examples of use of the30NoiselNews International1996 March