Vibration Trainer

Vibration Trainer The unit is perform the following experiments and investigations: Learning Objectives / Experiments: Experiments with pendulums Kater’s pendulum Reduced pendulum length Spring-mass system Bar-type oscillator Undamped oscillation Damped oscillation Forced vibration Damped and undamped resonance Absorber effect in multi-mass oscillators To be supplied with; Free and damped torsional vibrations System for data acquisition PC1 Computer-System with 21" TFT-Monitor Win 10 engl. Specifications: Vibration trainer with experiments on damping, resonance, dual-mass system and vibration absorption 6 pendulum oscillators, 2 bar-type oscillators and 1 spring-mass oscillator Electrical imbalance exciter Control unit for the imbalance exciter A digital frequency display and a ttl output for triggering external devices Tuneable absorber with a leaf spring Adjustable oil damper Electrically operated drum recorder for recording free vibrations Polar chart recorder for determining the amplitude and phase of forced vibrations Technical Data: Beam, rigid: Length x Width x Height: 700x25x12mm, 1,6kg Beam, elastic: Length x Width x Height: 700x25x4mm, 0,6kg Tension-pressure springs 0,75N/mm 1,5N/mm 3,0N/mm Imbalance exciter 0...50Hz 100cmg Oil damper: 5...15Ns/m Absorber Leaf spring: wxh: 20x1,5mm Total mass: 1,1kg Tuneable: 5...50Hz Drum recorder: 20mm/s, width 100mm Polar chart recorder: Ø 100mm 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase Dimensions and Weight Length x Width x Height: 1010x760x1800mm Frame opening Width x Height: 870x650mm Weight: 150kg 1. Free and Damped Torsional Vibrations Natural frequency of a rotary oscillator Influence of torsional stiffness, mass and damping Specification: Supplementary experiment for torsional vibrations for the Vibration trainer 3 torsion bars with different diameters, freely selectable effective length 3 different mass disks with clamping chuck 3 with ball bearings and clamping chuck Oil damper for damped vibrations Recorder for recording the vibrations in the Vibration trainer Technical Data: Torsion bars, stainless steel Ø 3mm, 5mm, 6mm Length: 800mm Mass disks Small: Ø 150mm 2,7kg Large: Ø 228mm 4,8kg Clamping chuck: Ø 0,5...8,0mm Dimensions and Weight Length x Width x Height: 480x240x1180mm Weight: 33kg 2. System for Data Acquisition natural vibration of a bar-type oscillator damped vibration of a bar-type oscillator forced vibration of a bar-type oscillator (damped and undamped resonance) frequency and period time measurements Kater's pendulum Specification: Data analysis for Vibration trainer Measurement, recording and analysis of frequency response and transfer function Functions as a digital storage oscilloscope Interface box with 3 sensor inputs and 3 analogue outputs 1 inductive displacement sensor (amplitude), 1 reference sensor (exciter force) Software for data acquisition via USB under Windows 7, 8.1, 10 Including PC1 Computer-System with 21" TFT-Monitor Win 10 engl. Technical Data: Sensor input channels: 3 Inputs in oscilloscope mode: 2 Time basis: 10...750ms/DIV Record length: 2000 points Displacement sensors Measuring range: 5...10mm Frequency range: 0...50hz 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase 120V, 60Hz, 1 phase; UL/CSA optional Dimensions and Weight Length x Width x Height: 265x260x110mm (interface box) Weight: 7kg Length x Width x Height: 600x400x170mm (storage system)

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