Research Article
Fault Detection of Inline Reciprocating Diesel Engine: A Mass and Gas-Torque Approach
Table 3
Natural frequency of whole system = 2379 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 | 0.5320062 | 1 | 0.532006254 | 0.532006254 | 0.391 | 1.36062981 | Cyl.1 | 2 | 0.075 | 0.4244730 | −0.36062981 | −0.15307764 | 0.378928611 | 1.952 | 0.19412326 | Cyl.2 | 3 | 0.075 | 0.4244730 | −0.55475307 | −0.23547774 | 0.14345087 | 1.952 | 0.07348918 | Cyl.3 | 4 | 0.075 | 0.4244730 | −0.62824225 | −0.26667192 | −0.12322105 | 1.952 | −0.0631255 | Cyl.4 | 5 | 0.075 | 0.4244730 | −0.56511671 | −0.23987683 | −0.36309787 | 1.952 | −0.1860133 | Cyl.5 | 6 | 0.075 | 0.4244730 | −0.37910345 | −0.16091922 | −0.52401708 | 1.952 | −0.2684514 | Cyl.6 | 7 | 0.075 | 0.4244730 | −0.11065208 | −0.04696883 | −0.57098591 | 3.52 | −0.1622119 | Flywheel | 8 | 1.97 | 11.149492 | 0.051559828 | 0.574865928 | 0.003880017 | | |
| | vpm (vibration per min.) |
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