On Modeling Drilling Load in Lunar Regolith Simulant

Chinese Journal of Mechanical Engineering

Table 3 Comparison between the experimental and the calculated results

Penetrating speed v_p/(mm·min⁻¹)	Rotary speed n/(r·min⁻¹)	Weight on bit F_w/N			Rotary torque T/(N·m)
Penetrating speed v_p/(mm·min⁻¹)	Rotary speed n/(r·min⁻¹)	Experiments	Average	Model	Experiments	Average	Model
85	60	61.6‒83.6	72.1	71.3	1.13‒1.45	1.31	1.05
85	80	32.0‒41.9	37.7	39.0	0.70‒0.88	0.78	0.54
85	100	21.2‒28.2	25.6	24.2	0.52‒0.59	0.55	0.33
85	120	15.8‒22.2	18.4	15.8	0.33‒0.43	0.37	0.21
85	140	9.2‒17.5	12.7	11.6	0.22‒0.29	0.26	0.15
85	200	6.6‒10.0	7.8	6.7	0.08‒0.16	0.12	0.09
10	10	32.5‒42.0	37	39.0	0.61‒0.8	0.69	0.54
60	60	36.2‒41.9	40	39.0	0.68‒0.78	0.76	0.54
70	70	34.3‒49.5	39	39.0	0.62‒0.80	0.73	0.54
200	200	32.1‒41.5	38	39.0	0.68‒0.72	0.70	0.54