Research Article
Fault Detection of Inline Reciprocating Diesel Engine: A Mass and Gas-Torque Approach
Table 2
Natural frequency of whole system = 1148 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 | 0.1238829 | 1 | 0.123882976 | 0.123882976 | 0.391 | 0.31683626 | Cyl.1 | 2 | 0.075 | 0.0988428 | 0.683163744 | 0.067525817 | 0.191408793 | 1.952 | 0.09805778 | Cyl.2 | 3 | 0.075 | 0.0988428 | 0.585105961 | 0.057833511 | 0.249242305 | 1.952 | 0.12768561 | Cyl.3 | 4 | 0.075 | 0.0988428 | 0.457420354 | 0.045212709 | 0.294455013 | 1.952 | 0.15084786 | Cyl.4 | 5 | 0.075 | 0.0988428 | 0.306572499 | 0.030302484 | 0.324757498 | 1.952 | 0.16637167 | Cyl.5 | 6 | 0.075 | 0.0988428 | 0.14020083 | 0.013857843 | 0.33861534 | 1.952 | 0.17347097 | Cyl.6 | 7 | 0.075 | 0.0988428 | −0.03327014 | −0.00328851 | 0.335326826 | 3.52 | 0.0952633 | Flywheel | 8 | 1.97 | 2.5962708 | −0.12853344 | −0.33370764 | 0.001619182 | | |
| | vpm (vibration per min.) |
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