LEADER 01573nam2-2200409li-450 001 990000215850203316 005 20180312154900.0 010 $a3-540-15666-6 035 $a0021585 035 $aUSA010021585 035 $a(ALEPH)000021585USA01 035 $a0021585 100 $a20001109d1985----km-y0itay0103----ba 101 0 $aeng 102 $aGW 200 1 $aDifferential geometric methods in mathematical physics$eproceedings of an international conference held at the Technical University of Clausthal, FRG, August 30-September 2, 1983$fedited by H.D. Doebner and J.D. Hennig 210 $aBerlin [etc.]$cSpringer-Verlag$dcopyr. 1985 215 $a337 p.$cill.$d23 cm 225 2 $aLecture notes in mathematics$v1139 410 0$10010021263$12001$aLecture notes in mathematics$ea collection of informal reports and seminars$fedited by A. Dold, Heidelberg and B. Eckmann, Zürich 610 1 $acongressi$aclausthal$a1983 610 1 $afisica matematica$acongressi$a1983 610 1 $ageometria differenziale$acongressi$a1983 676 $a530156$9. 702 1$aDoebner,$bHeinz-Dietrich 702 1$aHennig,$bJörg-Dieter 801 $aSistema bibliotecario di Ateneo dell' Università di Salerno$gRICA 912 $a990000215850203316 951 $a510 LNM (1139)$b0011968 959 $aBK 969 $aSCI 979 $c19900627 979 $c20001110$lUSA01$h1714 979 $c20020403$lUSA01$h1629 979 $aPATRY$b90$c20040406$lUSA01$h1616 996 $aDifferential geometric methods in mathematical physics$979892 997 $aUNISA LEADER 00834nam0-22002891i-450 001 990001682830403321 005 20201120131141.0 035 $a000168283 035 $aFED01000168283 035 $a(Aleph)000168283FED01 035 $a000168283 100 $a20030910d1971----km-y0itay50------ba 101 0 $aita 200 1 $a<>innesto delle piante da frutto e della vite$fOscar Bonfiglioli, Marco Marro 210 $aBologna$cEdagricole$d1971 215 $aVII, 122 p.$d25 cm 610 0 $aInnesto 676 $a631.541 700 1$aBonfiglioli,$bOscar$072529 701 1$aMarro,$bMarco$06259 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990001682830403321 952 $a60 631.541 B 2$b42549$fFAGBC 959 $aFAGBC 996 $aInnesto delle piante da frutto e della vite$9371723 997 $aUNINA LEADER 05250nam 22006494a 450 001 9911020145103321 005 20200520144314.0 010 $a9786610287567 010 $a9781280287565 010 $a128028756X 010 $a9780470024577 010 $a0470024577 010 $a9780470024317 010 $a0470024313 035 $a(CKB)1000000000357188 035 $a(EBL)242939 035 $a(OCoLC)475962228 035 $a(SSID)ssj0000101794 035 $a(PQKBManifestationID)11109152 035 $a(PQKBTitleCode)TC0000101794 035 $a(PQKBWorkID)10048505 035 $a(PQKB)11412390 035 $a(MiAaPQ)EBC242939 035 $a(Perlego)2750555 035 $a(EXLCZ)991000000000357188 100 $a20050223d2005 uy 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aAmbient vibration monitoring /$fHelmut Wenzel, Dieter Pichler 210 $aChichester, England $cJohn Wiley$d2005 215 $a1 online resource (309 p.) 300 $aDescription based upon print version of record. 311 08$a9780470024300 311 08$a0470024305 320 $aIncludes bibliographical references and index. 327 $aAMBIENT VIBRATION MONITORING; Contents; PREFACE; ACKNOWLEDGEMENTS; SUMMARY; 1 INTRODUCTION; 1.1 Scope of Applications; 1.2 Laws and Regulations; 1.3 Theories on the Development of the AVM; 2 OBJECTIVES OF APPLICATIONS; 2.1 System Identification; 2.1.1 Eigenfrequencies and Mode Shapes; 2.1.2 Damping; 2.1.3 Deformations and Displacements; 2.1.4 Vibration Intensity; 2.1.5 Trend Cards; 2.2 Stress Test; 2.2.1 Determination of Static and Dynamic Stresses; 2.2.2 Determination of the Vibration Elements; 2.2.3 Stress of Individual Structural Members; 2.2.4 Determination of Forces in Tendons and Cables 327 $a2.3 Assessment of Stresses2.3.1 Structural Safety; 2.3.2 Structural Member Safety; 2.3.3 Maintenance Requirements and Intervals; 2.3.4 Remaining Operational Lifetime; 2.4 Load Observation (Determination of External Influences); 2.4.1 Load Collective; 2.4.2 Stress Characteristic; 2.4.3 Verification of Load Models; 2.4.4 Determination of Environmental Influences; 2.4.5 Determination of Specific Measures; 2.4.6 Check on the Success of Rehabilitation Measures; 2.4.7 Dynamic Effects on Cables and Tendons; 2.4.8 Parametric Excitation; 2.5 Monitoring of the Condition of Structures 327 $a2.5.1 Assessment of Individual Objects2.5.2 Periodic Monitoring; 2.5.3 BRIMOS® Recorder; 2.5.4 Permanent Monitoring; 2.5.5 Subsequent Measures; 2.6 Application of Ambient Vibration Testing to Structures for Railways; 2.6.1 Sleepers; 2.6.2 Noise and Vibration Problems; 2.7 Limitations; 2.7.1 Limits of Measuring Technology; 2.7.2 Limits of Application; 2.7.3 Limits of Analysis; 2.7.4 Perspectives; References; 3 FEEDBACK FROM MONITORING TO BRIDGE DESIGN; 3.1 Economic Background; 3.2 Lessons Learned; 3.2.1 Conservative Design; 3.2.2 External versus Internal Pre-stressing 327 $a3.2.3 Influence of Temperature3.2.4 Displacement; 3.2.5 Large Bridges versus Small Bridges; 3.2.6 Vibration Intensities; 3.2.7 Damping Values of New Composite Bridges; 3.2.8 Value of Patterns; 3.2.9 Understanding of Behaviour; 3.2.10 Dynamic Factors; References; 4 PRACTICAL MEASURING METHODS; 4.1 Execution of Measuring; 4.1.1 Test Planning; 4.1.2 Levelling of the Sensors; 4.1.3 Measuring the Structure; 4.2 Dynamic Analysis; 4.2.1 Calculation Models; 4.2.2 State of the Art; 4.3 Measuring System; 4.3.1 BRIMOS®; 4.3.2 Sensors; 4.3.3 Data-Logger; 4.3.4 Additional Measuring Devices and Methods 327 $a4.4 Environmental Influence4.5 Calibration and Reliability; 4.6 Remaining Operational Lifetime; 4.6.1 Rainflow Algorithm; 4.6.2 Calculation of Stresses by FEM; 4.6.3 S-N Approach and Damage Accumulation; 4.6.4 Remaining Service Lifetime by Means of Existing Traffic Data and Additional Forward and Backward Extrapolation; 4.6.5 Conclusions and Future Work; References; 5 PRACTICAL EVALUATION METHODS; 5.1 Plausibility of Raw Data; 5.2 AVM Analysis; 5.2.1 Recording; 5.2.2 Data Reduction; 5.2.3 Data Selection; 5.2.4 Frequency Analysis, ANPSD (Averaged Normalized Power Spectral Density) 327 $a5.2.5 Mode Shapes 330 $aIn-operation vibration monitoring for complex mechanical structures and rotating machines is of key importance in many industrial areas such as aeronautics (wings and other structures subject to strength), automobile (gearbox mounting with a sports car body), rail transportation, power engineering (rotating machines, core and pipes of nuclear power plants), and civil engineering (large buildings subject to hurricanes or earthquakes, bridges, dams, offshore structures). Tools for the detection and the diagnosis of small changes in vibratory characteristics are particularly useful to set up a pr 606 $aBridges$xVibration 615 0$aBridges$xVibration. 676 $a624.2/52 700 $aWenzel$b Helmut$0297865 701 $aPichler$b Dieter$0297864 801 0$bMiAaPQ 801 1$bMiAaPQ 801 2$bMiAaPQ 906 $aBOOK 912 $a9911020145103321 996 $aAmbient vibration monitoring$9728033 997 $aUNINA