SUMMARY Case nr: 1 Damper 248*32, Flywheel 1.2kgm Case nr: 11 misfire, Damper 248*32, Flywheel 1.2kgm2...

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1 Issued by (Dep. name, loc. tel.): Torsional Vibration Calculation (TVC) Date issued: Venesa Kreso Z Approved by (Dep. name, loc. tel.: Date approved Peter Olsson Z Ordered by (Dep. name, loc. tel.): Design order: Johan Burgren TVC Id: Engine: Power (kw): Speed (rpm): Pages: 5490 D5A T Short description: D5A T, STAMFORD UCM274D-1 Flywheel end: Coupling: Front end: Coupling: Marine gearbox: Marine gearbox: Shaft: Shaft: Consumer: Consumer: STAMFORD UCM274D-1 Distribution: Dep. name location Dep. name location Important! Computer results and recommendations provided by AB Volvo Penta are valid only if input data are correct. AB Volvo Penta carries no responsibility for input data originating from other than Volvo Penta products. Therefore, please check input data for this calculation carefully. SUMMARY Case nr: 1 77kW@1500rpm, Damper 248*32, Flywheel 1.2kgm Case nr: 11 77kW@1500rpm, misfire, Damper 248*32, Flywheel 1.2kgm The following results were obtained: CASE: 1 11 LIMIT == Crankshaft nom. vibr. stress [MPa] * Generator shaft nom. vibr. stress [MPa] 8 8 * Crankshaft forw end vibratory torque [Nm] * Crankshaft flywh end vibratory torque [Nm] * Crankshaft damper heat load [kw/m 2 ] * === * Calculated values are below adequate limits. CONCLUSION: No problems are foreseen from a torsional vibration point of view.

2 Torsional Vibration Calculation (TVC) 2(13) Case nr: 1 77kW@1500rpm, Damper 248*32, Flywheel 1.2kgm2 AB VOLVO PENTA TVC nr: 5490 Case nr: 1 77kW@1500rpm, Damper 248*32, Flywheel 1.2kgm2 T O R S I O N A L V I B R A T I O N C A L C U L A T I O N HEADER... : D5A T, STAMFORD UCM274D-1 CALCULATION NUMBER... : 5490 INPUT FILE... : U:\_TVC\indatafiler\tvc5490_1.dat COMPUTER INFORMATION... : APLver Windows NT OUR REF... : Venesa Kreso ORDERER... : Johan Burgren ENGINE TYPE... : D5A T UNITS IN FRONT OF ENGINE.. : None UNITS BEHIND FLYWHEEL...: STAMFORD UCM274D Important! Comments:. No problems are foreseen from a torsional vibration point of view.. + COMPUTER RESULTS AND RECOMMENDATIONS PROVIDED BY AB VOLVO PENTA + + ARE VALID ONLY IF INPUT DATA ARE CORRECT. AB VOLVO PENTA CARRIES NO RESPONSIBILITY FOR INPUT DATA ORIGINATING FROM OTHER THAN + + VOLVO PENTA PRODUCTS. THEREFORE, PLEASE CHECK INPUT DATA FOR THIS CALCULATION CAREFULLY Important! Sign:VK... ********************************************************************** Engine Data ********************************************************************** CYLINDER DIAMETER...[mm]: STROKE (2 OR 4)...[-]: 4 COMPRESSION RATIO...[-]: LENGTH OF STROKE...[mm]: LENGTH OF CONNECTING ROD...[mm]: RECIPROCATING MASS...[kg]: 2.77 HARMONIC COMPONENTS...[-]: HK93 CYLINDER MASS NUMBER...[-]: FIRING ANGLE...[deg]:

3 Torsional Vibration Calculation (TVC) 3(13) AB VOLVO PENTA TVC nr: 5490 Case nr: 1 77kW@1500rpm, Damper 248*32, Flywheel 1.2kgm2 ***************************************************************** Data of Shaft System ***************************************************************** MASS DESCRIPTION MASSMOMENT STIFFNESS GEAR ----DAMPING ON MASSES DAMPING IN SHAFTS--- --SHAFT DIAMETER-- NR OF INERTIA RATIO COEFF MAGNIFIER COEFF MAGNIFIER OUTSIDE INSIDE [KGM2] [NM/RAD] [-] [NMS/RAD] [-] [NMS/RAD] [-] [M] [M] 1 HUB+PULLEY CYLINDER CYLINDER CYLINDER CYLINDER FLYWHEEL FLEXPLATE FAN ROTOR EXCITER DAMPERRING N O T E: Branched Shaft System, Connection Point: 11->1

4 Torsional Vibration Calculation (TVC) 4(13) TVC 5490 ******************* MODE NO. 1******************* CASE 1 77kW@1500rpm, Damper 248*32, Flywheel 1.2kgm2 NATURAL FREQUENCY: HZ CYCLES/MIN. MASS MASS RELATIVE AMPLITUDE PLOT NUMBER NAME AMPLITUDE 1 HUB+PULLEY I CYLINDER I CYLINDER I CYLINDER I CYLINDER I+++ 6 FLYWHEEL I 7 FLEXPLATE I 8 FAN I 9 ROTOR I 10 EXCITER I 11 DAMPERRING I ORDER VECTOR SUM NCRIT (R/S) (R/M) TVC 5490 ******************* MODE NO. 2******************* CASE 1 77kW@1500rpm, Damper 248*32, Flywheel 1.2kgm2 NATURAL FREQUENCY: HZ CYCLES/MIN. MASS MASS RELATIVE AMPLITUDE PLOT NUMBER NAME AMPLITUDE 1 HUB+PULLEY I CYLINDER I CYLINDER I CYLINDER I+ 5 CYLINDER I 6 FLYWHEEL I 7 FLEXPLATE I 8 FAN I 9 ROTOR I EXCITER I DAMPERRING I ORDER VECTOR SUM NCRIT (R/S) (R/M)

5 Torsional Vibration Calculation (TVC) 5(13) TVC nr:5490 Case:1 Damper 248*32, Flywheel 1.2kgm2 Engine Power [kw] Crankshaft Indicated TVC nr:5490 Case:1 Damper 248*32, Flywheel 1.2k Synthesis Stress Amplitude [MPa] CYLINDER2 4 CYLINDER3 5 CYLINDER4 9 ROTOR

6 Torsional Vibration Calculation (TVC) 6(13) TVC nr:5490 Case:1 Damper 248*32, Flywheel 1.2k Synthesis Torque Amplitude [Nm] CYLINDER1 6 FLYWHEEL TVC nr:5490 Case:1 77kW@1500rpm, Damper 248*32, Flywheel 1.2k Synthesis Torque Amplitude [Nm] ROTOR

7 Torsional Vibration Calculation (TVC) 7(13) TVC nr:5490 Case:1 Damper 248*32, Flywheel 1.2k Synthesis Power Loss [W] DAMPERRING

8 Torsional Vibration Calculation (TVC) 8(13) Case nr: kgm2 misfire, Damper 248*32, Flywheel AB VOLVO PENTA TVC nr: 5490 Case nr: 11 misfire, Damper 248*32, Flywheel 1.2kgm2 T O R S I O N A L V I B R A T I O N C A L C U L A T I O N HEADER... : D5A T, STAMFORD UCM274D-1 CALCULATION NUMBER... : 5490 INPUT FILE... : U:\_TVC\indatafiler\tvc5490_11.dat COMPUTER INFORMATION... : APLver Windows NT OUR REF... : Venesa Kreso ORDERER... : Johan Burgren ENGINE TYPE... : D5A T UNITS IN FRONT OF ENGINE.. : None UNITS BEHIND FLYWHEEL...: STAMFORD UCM274D Important! Comments:. No problems are foreseen from a torsional vibration point of view.. + COMPUTER RESULTS AND RECOMMENDATIONS PROVIDED BY AB VOLVO PENTA + + ARE VALID ONLY IF INPUT DATA ARE CORRECT. AB VOLVO PENTA CARRIES NO RESPONSIBILITY FOR INPUT DATA ORIGINATING FROM OTHER THAN + + VOLVO PENTA PRODUCTS. THEREFORE, PLEASE CHECK INPUT DATA FOR THIS CALCULATION CAREFULLY Important! Sign:.VK... ********************************************************************** Engine Data ********************************************************************** CYLINDER DIAMETER...[mm]: STROKE (2 OR 4)...[-]: 4 COMPRESSION RATIO...[-]: LENGTH OF STROKE...[mm]: LENGTH OF CONNECTING ROD...[mm]: RECIPROCATING MASS...[kg]: 2.77 HARMONIC COMPONENTS...[-]: HK93 CYLINDER MASS NUMBER...[-]: MISFIRING MASS NUMBER...[-]: 4 COMPRESSION IMPULSES...[-]: COMP95 FIRING ANGLE...[deg]:

9 Torsional Vibration Calculation (TVC) 9(13) AB VOLVO PENTA TVC nr: 5490 Case nr: 11 misfire, Damper 248*32, Flywheel 1.2kgm2 ***************************************************************** Data of Shaft System ***************************************************************** MASS DESCRIPTION MASSMOMENT STIFFNESS GEAR ----DAMPING ON MASSES DAMPING IN SHAFTS--- --SHAFT DIAMETER-- NR OF INERTIA RATIO COEFF MAGNIFIER COEFF MAGNIFIER OUTSIDE INSIDE [KGM2] [NM/RAD] [-] [NMS/RAD] [-] [NMS/RAD] [-] [M] [M] 1 HUB+PULLEY CYLINDER CYLINDER CYLINDER CYLINDER FLYWHEEL FLEXPLATE FAN ROTOR EXCITER DAMPERRING N O T E: Branched Shaft System, Connection Point: 11->1

10 Torsional Vibration Calculation (TVC) 10(13) TVC 5490 ******************* MODE NO. 1******************* CASE 11 misfire, Damper 248*32, Flywheel 1.2kgm2 NATURAL FREQUENCY: HZ CYCLES/MIN. MASS MASS RELATIVE AMPLITUDE PLOT NUMBER NAME AMPLITUDE 1 HUB+PULLEY I CYLINDER I CYLINDER I CYLINDER I CYLINDER I+++ 6 FLYWHEEL I 7 FLEXPLATE I 8 FAN I 9 ROTOR I 10 EXCITER I 11 DAMPERRING I ORDER VECTOR SUM NCRIT (R/S) (R/M) TVC 5490 ******************* MODE NO. 2******************* CASE 11 77kW@1500rpm, misfire, Damper 248*32, Flywheel 1.2kgm2 NATURAL FREQUENCY: HZ CYCLES/MIN. MASS MASS RELATIVE AMPLITUDE PLOT NUMBER NAME AMPLITUDE 1 HUB+PULLEY I CYLINDER I CYLINDER I CYLINDER I+ 5 CYLINDER I 6 FLYWHEEL I 7 FLEXPLATE I 8 FAN I 9 ROTOR I EXCITER I DAMPERRING I ORDER VECTOR SUM NCRIT (R/S) (R/M)

11 Torsional Vibration Calculation (TVC) 11(13) TVC nr:5490 Case:11 misfire, Damper 248*32, Flywheel 1.2kgm2 Engine Power [kw] Crankshaft Indicated TVC nr:5490 Case:11 misfire, Damper 248*32, Fly Synthesis Stress Amplitude [MPa] CYLINDER2 4 CYLINDER3 5 CYLINDER4 9 ROTOR

12 Torsional Vibration Calculation (TVC) 12(13) TVC nr:5490 Case:11 misfire, Damper 248*32, Fly Synthesis Torque Amplitude [Nm] CYLINDER1 6 FLYWHEEL TVC nr:5490 Case:11 77kW@1500rpm, misfire, Damper 248*32, Fly Synthesis Torque Amplitude [Nm] ROTOR

13 Torsional Vibration Calculation (TVC) 13(13) TVC nr:5490 Case:11 misfire, Damper 248*32, Fly Synthesis Power Loss [W] DAMPERRING