"loss factor, phase shift, resonance curve bandwidth"@en . . "Physical and material engineering 2006" . "1"^^ . "ALUMINIUM LOSS FACTOR MEASUREMENT"@en . "295-298" . "1"^^ . "ALUMINIUM LOSS FACTOR MEASUREMENT" . "Slovensk\u00E1 technick\u00E1 univerzita v Bratislave" . "RIV/00216305:26110/06:PU62320!RIV07-GA0-26110___" . "Loss factor measurements of various materials are of great importance for engineering practice. The loss factor, , characterizes the internal vibration damping in the material under investigation. If a harmonic-varying force is used for the measurement, a phase shift between the induced stress and the resulting deformation will arise, being due to the damping force (internal and external friction). The loss factor influences the width of the resonance curve. The frequency shift from the resonance frequency at which the amplitude drops to 0.707 times the maximum (resonance) value (i.e., to Um/ 2) can be used to determine d. For a given resonance frequency, the shape of the resonance curve can be recorded. The loss factor d can be determined from the resonance curve bandwidth fn." . . "80-227-2467-X" . "Bratislava" . . "ALUMINIUM LOSS FACTOR MEASUREMENT"@en . "Bratislava" . . "464682" . . "4"^^ . "Loss factor measurements of various materials are of great importance for engineering practice. The loss factor, , characterizes the internal vibration damping in the material under investigation. If a harmonic-varying force is used for the measurement, a phase shift between the induced stress and the resulting deformation will arise, being due to the damping force (internal and external friction). The loss factor influences the width of the resonance curve. The frequency shift from the resonance frequency at which the amplitude drops to 0.707 times the maximum (resonance) value (i.e., to Um/ 2) can be used to determine d. For a given resonance frequency, the shape of the resonance curve can be recorded. The loss factor d can be determined from the resonance curve bandwidth fn."@en . "P(GA103/06/0708), P(GD103/05/H044)" . "RIV/00216305:26110/06:PU62320" . . . . . . . "26110" . "\u0160tefkov\u00E1, Mark\u00E9ta" . . "M\u011A\u0158EN\u00CD ZTR\u00C1TOV\u00C9HO \u010CINITELE HLIN\u00CDKU"@cs . "M\u011A\u0158EN\u00CD ZTR\u00C1TOV\u00C9HO \u010CINITELE HLIN\u00CDKU"@cs . . . "ALUMINIUM LOSS FACTOR MEASUREMENT" . "2006-09-05+02:00"^^ . . . . "M\u011B\u0159en\u00ED ztr\u00E1tov\u00E9ho \u010Dinitele pro r\u016Fzn\u00E9 materi\u00E1ly m\u00E1 v technick\u00E9 praxi velk\u00FD v\u00FDznam. Ztr\u00E1tov\u00FD \u010Dinitel , charakterizuje vnit\u0159n\u00ED tlumen\u00ED v m\u011B\u0159en\u00E9m materi\u00E1lu. Pou\u017Eijeme-li p\u0159i m\u011B\u0159en\u00ED harmonickou zat\u011B\u017Eovac\u00ED s\u00EDlu, bude mezi vyvolan\u00FDm nap\u011Bt\u00EDm v materi\u00E1lu a deformac\u00ED f\u00E1zov\u00FD posuv , zp\u016Fsoben\u00FD tlum\u00EDc\u00ED silou (vnit\u0159n\u00EDm a vn\u011Bj\u0161\u00EDm t\u0159en\u00EDm). Ztr\u00E1tov\u00FD \u010Dinitel ovliv\u0148uje \u0161\u00ED\u0159ku rezonan\u010Dn\u00ED k\u0159ivky. Pokles amplitudy v z\u00E1vislosti na rozlad\u011Bn\u00ED frekvence od rezonance na 0,707 maxim\u00E1ln\u00ED hodnoty (tj.Um/ 2) m\u016F\u017Ee slou\u017Eit k ur\u010Den\u00ED d. Pro rezonan\u010Dn\u00ED frekvenci dan\u00E9ho vzorku lze zaznamenat pr\u016Fb\u011Bh rezonan\u010Dn\u00ED k\u0159ivky. Z grafu potom m\u016F\u017Eeme ode\u010D\u00EDst \u0161\u00ED\u0159ku p\u00E1sma rezonan\u010Dn\u00ED k\u0159ivky fn a d\u00EDky n\u00ED stanovit ztr\u00E1tov\u00FD \u010Dinitel d."@cs . "[590ABAE6F7D8]" .