Research Article
Fault Detection of Inline Reciprocating Diesel Engine: A Mass and Gas-Torque Approach
Table 4
Natural frequency of whole system = 4162 vpm.
| | Mass no. | Moment of inertia
| Torque per unit deflection
| Deflection in plane of mass
| Torque in plane of mass
| Total torque
| Shaft stiffness
| Change in deflection
| | Kg m2 | MN m | ±rad | MN m | MN m | MN m/rad | rad |
| Pulley | 1 | 0.094 | 2.016259 | 1 | 2.016259 | 2.016259 | 0.391 | 0.974415 | Cyl.1 | 2 | 0.075 | 0.07293367 | −3.164426946 | 0.018660 | 2.034920 | 1.952 | 0.914119 | Cyl.2 | 3 | 0.075 | 0.07293367 | −1.8924842 | −0.648040 | 1.386879 | 1.952 | 0.623009 | Cyl.3 | 4 | 0.075 | 0.07293367 | 0.639015657 | −1.102423 | 0.2844561 | 1.952 | 0.127782 | Cyl.4 | 5 | 0.075 | 0.07293367 | 2.745213832 | −1.195620 | −0.911163 | 1.952 | −0.40931 | Cyl.5 | 6 | 0.075 | 0.07293367 | 3.024314267 | −0.897095 | −1.808259 | 1.952 | −0.81235 | Cyl.6 | 7 | 0.075 | 13.164734 | 1.290559567 | 2.125865 | 0.01295095 | 3.52 | 0.161948 | Flywheel | 8 | 1.97 | 27.805941 | −0.147208403 | −0.0129509 | | | |
| | vpm (vibration per min.) |
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