A Comparative Elastohydrostatic Analysis of CFV- and Capillary-Compensated Multirecess Hydrostatic/Hybrid Journal Bearing Operating with Micropolar Lubricant

Table 3

Comparison of stiffness and damping coefficients.

Dynamic characteristics	𝑁^2	𝑙𝑚	Performance comparison in hybrid mode (Ω = 0.5)
			Rigid bearing (𝐶𝑑 = 0.0)			Flexible bearing (𝐶𝑑 = 0.5)
			CFV	Capillary	%Diff	CFV	Capillary	%Diff
𝑆𝑋𝑋	Newtonian		3.54301	2.27482	55.75	3.23627	2.18368	48.20
	0.5	20	4.65422	2.48465	87.32	4.1514	2.3875	73.88
	0.9	20	5.31347	2.58922	105.22	4.6763	2.48892	87.88
	0.5	10	5.64979	2.56437	120.32	4.94724	2.47348	100.01
	0.9	10	7.9128	2.78698	183.92	6.6325	2.69533	146.07
𝑆𝑋𝑍=−𝑆𝑍𝑋	Newtonian		1.83132	1.16368	57.37	1.71806	1.11428	54.19
	0.5	20	2.21482	1.30984	69.09	2.04087	1.24951	63.33
	0.9	20	2.42169	1.38037	75.44	2.20832	1.31431	68.02
	0.5	10	2.58848	1.4298	81.04	2.34717	1.36178	72.36
	0.9	10	3.24954	1.61102	101.71	2.85026	1.52843	86.48
𝑆𝑍𝑍	Newtonian		4.00934	2.463	62.78	3.65601	2.37157	54.16
	0.5	20	5.07072	2.62838	92.92	4.49692	2.53378	77.48
	0.9	20	5.71536	2.71743	110.32	4.98722	2.62107	90.27
	0.5	10	6.00467	2.6614	125.62	5.20757	2.57873	101.94
	0.9	10	8.2406	2.85221	188.92	6.78391	2.7746	144.50
𝐶𝑋𝑋	Newtonian		2.13626	1.37351	55.53	1.99885	1.31266	52.27
	0.5	20	2.60824	1.55894	67.31	2.39473	1.4845	61.32
	0.9	20	2.86087	1.64737	73.66	2.59901	1.56582	65.98
	0.5	10	3.06806	1.71482	78.91	2.77192	1.63065	69.99
	0.9	10	3.87129	1.94261	99.28	3.3804	1.84013	83.70
𝐶𝑋𝑍≈𝐶𝑍𝑋	Newtonian		0.011232	0.007723	45.44	0.012013	0.008362	43.66
	0.5	20	0.009318	0.006665	39.81	0.011956	0.00764	56.49
	0.9	20	0.008675	0.006294	37.83	0.01212	0.007447	62.75
	0.5	10	0.00778	0.00524	48.47	0.011899	0.00657	81.11
	0.9	10	0.006611	0.003998	65.36	0.014291	0.005943	140.47
𝐶𝑍𝑍	Newtonian		2.2232	1.42599	55.91	2.06051	1.35568	51.99
	0.5	20	2.68794	1.60386	67.59	2.43585	1.51768	60.50
	0.9	20	2.93783	1.68958	73.88	2.62917	1.59509	64.83
	0.5	10	3.13877	1.75164	79.19	2.78981	1.65411	68.66
	0.9	10	3.93504	1.97308	99.44	3.35903	1.85416	81.16