Inform Italia – Company Presentation
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Inform Italia – company presentation Back to Contents Page 1 Contents: Company NVH – systems for measurement / condition monitoring / end-of-line VMGears VMEngine ATB (Acoustic Test Bench) NVH – consultancy & measurement / engineering problem solving Example motorcycle (Ducati) Example automotive (AUDI) Back to Contents Page 2 Company) Inform Company Back to Contents Page 3 Company) Inform GmbH Founded in 1995, provides engineering service in the automotive market. About 200 emplyees in 7 locations: Mainz (headquarter) Russelsheim (Opel customer) Ingolstadt (AUDI customer) Heilbronn (AUDI customer) Stuttgart Munchen San Giovanni in P. (Italy) Expertise: Engine components design (Powertrain / Gearbox / Chassis) NVH (Italy) Quality management, Project management Electronics, Engine ECU calibration, infotainment. Back to Contents Page 4 Company) Inform Italia Expertise: NVH (Noise, Vibration and Harshness) Measurement service Engineering problem solving Diagnostic systems for rotating machinery (VMGears) Measurement systems (SVA8, ATB) Data acquisition & analysis Software development Mechanical design Development and Optimization of small engines Back to Contents Page 5 Customers) Inform GmBH Inform Italia AUDI Ferrari Opel Magneti Marelli Siemens Ducati GM KTM Luk Eberspaecher Yazaki Donaldson Borg Warner STIHL Continental Husqvarna BMW Bonfiglioli Nexans Rossi Group Porsche Comer Industries Delphi Mahindra 2 wheelers Mahle Reggiana Riduttori TRW Varvel ..... .... Back to Contents Page 6 VMGears) VMGears Diagnostic systems for rotating machinery Applications: R&D Quality Control Machine Condition Monitoring Back to Contents Page 7 VMGears) Introduction 1. VMGears is an advanced diagnostic system for rotating machinery (gearboxes, electric drives, pumps, IC engines). It involves the measurement and the analysis of housing vibrations in order to determine if inner rotating components are defected or not. 2. Using innovative algorithms, VMGears extracts from vibration signal the contribution of each component (gear by gear, tooth by tooth), allowing the identification of defects like pitting, cracked teeth, surface dents, pitch errors, eccentricity. Bearings defects on inner and outer race are identified too. 3. VMGears can assume different hardware configurations, depending on the application: • Portable rugged case (R&D, customer support, on-line monitoring) • Fixed installation on the production line (End-of-Line quality control) • Fixed installation on a test bench (R&D, quality control, durability tests) 4. VMGears diagnostics algorithm are mainly based on vibro-acoustic signals. In the industry environment vibration signals are much more reliable than acoustic signals, giving the following advantages: • no influence from near ambient • lower sensors cost with higher robustness • possibility to analyze each rotating internal component (gears, bearings, conrods, pistons..etc) from unique or few vibration signals Back to Contents Page 8 VMGears) Installation example Laser trigger reference (on input shaft) Accelerometer (Bevel Stage) Back to Contents Page 9 VMGears) VMGears – Gearbox model Input shaft 1° stage Intermediate shaft 2° stage Output shaft Back to Contents Page 10 VMGears) Gearbox 2D view Z=22 m=1.75 6206 6006 Z=21 m=2 Z=51 m=1.75 6206 6305 Z=77 m=2 6011 6011 Back to Contents Page 11 VMGears) VMGears – results Vibration level Overall vibration level Gear by gear vibration levels accordingly to ISO 10816 Back to Contents Page 12 VMGears) VMGears – results CGV – Cumulative Gear Vibration ECCabs Vibration due to eccentricity TDVavg Vibration due to teeth defects: localized (dents, crack, pitting) or distributed (pitch errors, etc). “Defect” means whatever deviation in tooth real profile respect to perfect involute profile. CGV = TQV+TDVavg+ECCabs TQV Vibration caused by meshing action Overall gear vibration = sum of 3 contributions Back to Contents Page 13 VMGears) VMGears – results RTD – Relative Tooth Damage RTD RTD is a percentage difference between the most vibrating tooth in the gear respect to average gear vibraion Back to Contents Page 14 VMGears) VMGears – results ECC – Gear Eccentricity Pinion - Average Vibration Signal 4 ECCrel 3 2 ECCrel is an estimation of gear eccentricity, extracted from modulated 1 average vibration signal (see image on 0 left side). vibration vibration [ms-2] -1 -2 -3 -4 0 0.005 0.01 0.015 0.02 0.025 0.03 0.035 0.04 time [sec] Back to Contents Page 15 VMGears) VMGears - applications Sound and vibration monitoring Remote Condition Monitoring Research & Development End-of-Line Quality Control Back to Contents Page 16 VMGears) End of Line Quality Control Possibility to have transportable PC cabinet, or rack-mounted solutions, or fixed cabinet Back to Contents Page 17 VMGears) End of Line Quality Control Possibility to have transportable PC cabinet, or rack-mounted solutions, or fixed cabinet Back to Contents Page 18 VMGears) End of Line Quality Control MAIN LIGHT: OK (GREEN) or NOT OK (RED) Checked gearboxes table: Gearbox model GREEN / RED lights for OK /NOT OK gearboxes Back to Contents Page 19 VMGears) End of Line Quality Control KEY FEATURES • Easy identification of defective components • Possibility to manage thousands of different product codes. • Test cycle setting in function of phases, duration and speed. • Automatic threshold management (with statistic analysis). • Database of results in standard SQL format. • Navigation into the database using the software interface or using whatever commercial SQL manager. • Results filtering by date, product code, serial number. • Database export .txt format. • Communication to production line supervisor PC through TCP/IP ethernet of via shared SQL table. • Serial Number and Product code reading via Bar code reader. • Easily integration into existing test benches or production lines. • Sensors: laser optical sensor, industrial IEPE accelerometers. • Highly-dynalmic data acquisition. • Proprietary advanced algorithms for components diagnostics. • Easy access to single test results details from main software interface. Back to Contents Page 20 VMGears) Remote Condition Monitoring Back to Contents Page 21 VMEngine) VMEngine Diagnostic systems for IC engines Back to Contents Page 22 VMEngine) Introduction 1. VMEngine is an advanced diagnostic system for IC engines. In function of the engine model (engine structure, valve timings, gears, etc..) vibrations signals from engine housing are processed together with crank and cam phase signals in order to detect defective components. 2. Using innovative algorithms, VMEngines extracts from vibrations easy-to-read indicators related to mechanical impacts like piston slap, valve closing/opening and mechanical periodic excitations (like gears meshing), in order to: • identify the presence of a “wrong” vibration pattern (caused by wrong design) • make a comparison between different prototypes of same component • detect the progression of anomalous events during a durability test, which can bring some components to fault 3. VMEngine indicators are really easy-to-read (no specific vibration analysis skills are required) and do not need calibration, being “relative” indexes (= result of a ratio respect to vibration signal energy). VMEngine contains a counter of anomalous events, and a statistic toolbox to process the indexes. 4. VMEngine systems contain commercial hardware and can have different configurations, depending on the application: • Portable rugged case • Fixed installation on a test bench Back to Contents Page 23 VMEngine) Portable system Back to Contents Page 24 VMEngine) Software interface (building model) Back to Contents Page 25 VMEngine) Software interface (detail on single index) Back to Contents Page 26 VMEngine) Software interface (results display) Durability test: speed profile Vibration index - history Abnormal events counter Statistic analysis Back to Contents Page 27 VMEngine) Key-features KEY FEATURES • Monitoring of engine typical defects: • Valve impacts • Piston tilting • Unbalance • Gears meshing forces • Gears localized or distributed defects • Bearings faults on races or rolling elements • …. • Easy-to-use, through indicators directly related to faults • Minimized calibration time • Statistic module included, for abnormal events counting and monitoring • Easily expandable and configurable to monitor specific defects • Thresholds and Alarms Back to Contents Page 28 ATB) ATB Acoustic Test Bench Back to Contents Page 29 ATB) Back to Contents Page 30 ATB) Back to Contents Page 31 ATB) ATB+PTB (PTB unit on a separate ATB hosts, dimensions 50-100-200 mm (in transportable frame, solution for order to cover the diameter range 30- high flow rates, up to 6000kg/h) 250mm) Back to Contents Page 32 ATB) Definitions . Sound Pressure, SPL in brief is the amplitude of a sound wave in a point and is expressed as SPL [dB] = 20*log10(p1/p0), where p1 [Pa] is the rms (root mean square) of measured acoustic pressure and p0 = 20 μPa is the reference acoustic pressure corresponding to 0 dB. Sound pressure is function of source sound power, distance from source and also of the density of the medium through which the sound wave propagates. Sound Power, SWL in brief, quantifies the acoustic energy generated in a unit time from a given source, and is expressed as SWL [dB] = 10*log10(P1/P0), where P1 [W] is the measured -12 acoustic power and P0 = 10 W is a reference value corresponding to a 0 dB. Sound power does not depend on the distance from the source. Transmission Loss (TL in brief) of a silencer