Influences of system parameters of the piston-crankshaft system in an internal combustion engine on the main journal vibration are investigated with the proposed systematic method considering oil film forces. In doing so, oil film forces of the lubricated piston pack and main journal were solved and then incorporated into the dynamic equations for the components in the system, through which the system parameter influences on the main journal vibration are simulated, and further verified. The numerical results show that there exists an optimal rotational speed of the internal combustion engine to keep the main journal stable. Moreover, the varied ratio of the connecting-rod length to piston diameter, unbalance mass of crankshaft, and damping coefficient of the main journal can change the main journal’s stability, and its vibration amplitude.
ParanjpeRS. A study of dynamically loaded engine bearings using a transient thermohydrodynamic analysis. Tribol Trans1996; 39(3): 636–644.
2.
SunJGuiCLWangZH. Research on elastohydrodynamic lubrication of a main journal bearing with a rough surface considering main journal deformation. Proc IMechE, Part D: J Automobile Engineering2008; 222(12): 2403–2414.
3.
NikolicNTorovicTAntonicZ. A procedure for constructing a theoretical wear diagram of IC engine main journal main bearings. Mech Mach Theory2012; 58: 120–136.
4.
Mourelatos ZP. An analytical investigation of the main journal–flywheel bending vibrations for a V6 Engine. SAE paper 951276, 1995.
5.
BrusaEDelpreteCGentaG. Torsional vibration of main journals: effects of non-constant moments of inertia. J Sound Vib1997; 205(2): 135–150.
6.
HuangYYangSPZhangFJ. Non-linear torsional vibration characteristics of an internal combustion engine main journal assembly. Chin J Mech Eng2012; 25(4): 797–808.
7.
BaimpasNDrakopoulosMConnolleyT. A feasibility study of dynamic stress analysis inside a running internal combustion engine using synchrotron X-ray beams. J Synchrotron Radiat2013; 20(2): 316–323.
8.
KangYSheenGJTsengMH. Modal analyses and experiments for engine main journals. J Sound Vib1998; 214(3): 413–430.
9.
LeiXY. Simulation on the motion of main journal with crack in main journal-web fillet region. J Sound Vib2006; 295(3–5): 890–905.
10.
SpiteriPHoSLeeYL. Assessment of bending fatigue limit for main journal sections with inclusion of residual stresses. Int J Fatigue2007; 29(2): 318–329.
11.
BulatovicZM. Measurement and analysis of angular velocity variations of twelve-cylinder diesel engine main journal. Mech Syst Signal Process2011; 25(8): 3043–3061.
12.
MourelatosZP. An efficient main journal dynamic analysis using substructuring with Ritz vectors. J Sound Vib2000; 238(3): 495–527.
13.
MourelatosZP. A crankshaft system model for structural dynamic analysis of internal combustion engines. Comput Struct2001; 79(20–21): 2009–2027.
14.
ZhangXYuSD. Torsional vibration of main journal in an engine–propeller nonlinear dynamical system. J Sound Vib2009; 319(1–2): 491–514.
15.
MetallidisPNatsiavaS. Linear and nonlinear dynamics of reciprocating engines. Int J Non Linear Mech2003; 38: 723–738.
16.
FarshidianfarAEbrahimiMBartlettH. Hybrid modeling and simulation of the torsional vibration of vehicle driveline systems. Proc IMechE, Part D: J Automobile Engineering2001; 215: 217–229.
17.
ZweiriYHWhidborneJFSenevirantneLD. Dynamic simulation of a single-cylinder diesel engine including dynamometer modeling and friction. Proc IMechE, Part D: J Automobile Engineering1999; 213: 391–402.
18.
KarabulutH. Dynamic model of a two-cylinder four stroke internal combustion engine and vibration treatment. Int J Engine Res2012; 13(6): 616–627.
19.
GuzzomiALHestermanDC. Variable inertia effects of an engine including piston friction and a crank or gudgeon pin offset. Proc IMechE, Part D: J Automobile Engineering2007; 222(3): 397–414.
20.
MengFMHuYZWangH. Analysis of dynamic performances of piston-crankshaft system considering oil film forces reconstructed by neural network. Proc IMechE, Part D: J Automobile Engineering2007; 221(2): 171–180.
21.
PatirNChengHS. An average flow model for determining effects of three-dimensional roughness partial hydrodynamic lubrication. J Lubric Technol1979; 100: 12–17.
22.
PatirNChengHS. Application of average flow model to lubrication between rough sliding surfaces. J Lubric Technol1979; 101: 220–230.
23.
WuCWZhengLQ. Average Reynolds equation for partial film lubrication with a contact factor. J Tribol1989; 111: 188–191.
24.
ZhuDChengHSAraiT. A numerical analysis for piston skirt in mixed lubrication, part I: Basic modeling. J Tribol1992; 114: 553–562.
25.
MengFMZhangYYHuYZ. Thermo-elasto-hydrodynamic lubrication analysis of piston skirt considering oil film inertia effect. Tribol Int2007; 40(7): 1089–1099.
26.
MengXHXieYB. A new numerical analysis for piston skirt-liner system lubrication considering the effects of connecting rod inertia. Tribol Int2012; 47: 235–243.
27.
YangJW. Research on tribology of the internal combustion engine piston skirt, Shanghai Jiao Tong University: PR China, 2003.
