A soil flowing characteristics monitoring method in planetary drilling and coring verification experiments

Tang, Junyue; Quan, Qiquan; Jiang, Shengyuan; Chen, Chongbin; Fang, Yuan; Deng, Zongquan

doi:10.1016/j.asr.2016.12.009

Cited by 23 publications

(6 citation statements)

References 22 publications

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“…The real lunar soil particle is modeled as a particle with three spherical particles clumped together in the software. 39–41…”

Section: Simulation Model For Lunar Soil Particles and Profilementioning

confidence: 99%

“…The real lunar soil particle is modeled as a particle with three spherical particles clumped together in the software. [39][40][41] Based on Generic EDEM Material Model database that is a special module in EDEM software, the GEEM parameters of equivalent sample particles are determined. 42 The process can be reformulated in detail as follows: (1) Set the particle size's range and the density of the sample block.…”

Section: Simulation Model For Lunar Soil Particles and Profilementioning

confidence: 99%

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Numerical simulation on interaction process between impact penetrator and lunar soil particles for lunar subsurface exploration

Shen

Deng

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part G:

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Unmanned in-situ exploration is an important technique to study the physical and mechanical parameters of lunar composition and evolution. The impact penetrator is an effective device for in-situ detection of the lunar soil profile at predetermined depth. Because of the lack of real lunar soil samples, it is very difficult to study and evaluate the performance of the impact penetrator. In order to truly reflect the interaction between the impact penetrator and lunar soil particles, a simulation model of the lunar soil body was established by means of discrete-element analysis, and the model parameters were matched and verified by the experimental method. Based on this model, the interaction behaviors between the penetrators with different head configurations and the lunar soil body were simulated. The stress field distribution in the lunar soil body and particle movement patterns during the penetrating process were revealed, which reflects the working principle and performance of the penetrator. The numerical simulation on the interaction process between the impact penetrator and lunar soil particles provides a feasible and effective method for the design and optimization of the penetrator, which will contribute to the development of lunar subsurface in-situ exploration technologies.

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“…The real lunar soil particle is modeled as a particle with three spherical particles clumped together in the software. 39–41…”

Section: Simulation Model For Lunar Soil Particles and Profilementioning

confidence: 99%

Section: Simulation Model For Lunar Soil Particles and Profilementioning

confidence: 99%

Numerical simulation on interaction process between impact penetrator and lunar soil particles for lunar subsurface exploration

Shen

Deng

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part G:

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“…Figures [12][13][14][15][16][17] show the effects of tool rotation speed, feedrate, ultrasonic power, abrasive size, abrasive concentration, and drill bit diameters on surface roughness. Consistent surface roughness values were impractical to obtain for travertine due to its high porosity (Figure 6).…”

Section: Effects On Surface Roughnessmentioning

confidence: 99%

“…2,3,12 However, extraterrestrial drilling has many constraints such as the extreme environmental conditions and the necessity of complex autonomous systems to acquire cores. 13,14 There is a growing interest in Mars exploration mission to acquire and return subsurface samples as solid cores to the earth for further analyze. 13 Recent studies showed that a combination of conventional drilling techniques with ultrasonic vibration can address the key shortcomings of the drilling in planetary exploration missions.…”

Section: Introductionmentioning

confidence: 99%

Rotary ultrasonic machining of rocks: An experimental investigation

Fernando

Zhang

Pei

2018

Advances in Mechanical Engineering

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Rock drilling is widely used to explore and mine energy resources. It has also been used to extract samples to study the earth's geological composition and topography and to explore different planets. Percussive drilling is, as of right now, the most commonly used rock drilling method. Due to the high hardness and abrasiveness of rock, tool wear in rock drilling is severe, thus limiting its penetration rate and resulting in high cost. Therefore, it is crucial to develop more costeffective rock drilling processes. Rotary ultrasonic machining has been used to drill many materials including metal alloys, ceramics, and composites, and its cost advantages have been demonstrated in many previous studies. This article presents the first experimental investigation of rotary ultrasonic machining of rocks. Three types of rocks (basalt, marble, and travertine) were used. Six input variables (tool rotation speed, feedrate, ultrasonic power, abrasive size, abrasive concentration, and drill bit diameter) were examined and two output variables (cutting force and surface roughness) were measured. Results indicate that rotary ultrasonic machining can drill holes of high quality on rocks of different hardness with a much lower cutting force and at a penetration rate of approximately three times faster than percussive drilling.

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“…Therefore, the authors proposed a novel flexible tube coring method to preserve the stratification of soil sample [29]. In order to comprehend the core flowing characteristics and optimize the final coring results, a non-contact type measurement based on ultrasonic wave reflection mechanism and vision techniques is applied to online monitor the coring and removal characteristics [30]. Once the drill-soil interaction mechanism comprehended, suitable drilling parameters for different types of drilling formations considering both power consumption and coring morphology can be optimized then.…”

Section: Introductionmentioning

confidence: 99%

Intelligent Drilling and Coring Technologies for Unmanned Interplanetary Exploration

Tang¹,

Quan²,

Jiang³

et al. 2018

Drilling

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The robotic technology, especially the intelligent robotics that can autonomously conduct numerous dangerous and uncertain tasks, has been widely applied to planetary explorations. Similar to terrestrial mining, before landing on planets or building planetary constructions, a drilling and coring activity should be first conducted to investigate the in-situ geological information. Given the technical advantages of unmanned robotics, utilizing an autonomous drill tool to acquire the planetary soil sample may be the most reliable and cost-effective solution. However, due to several unique challenges existed in unmanned drilling and coring activities, such as long-distance time delay, uncertain drilling formations, limited sensor resources, etc., it is indeed necessary to conduct researches to improve system's adaptability to the complicated geological formations. Taking drill tool's power consumption and soil's coring morphology into account, this chapter proposed a drilling and coring characteristics online monitoring method to investigate suitable drilling parameters for different formations. Meanwhile, by applying pattern recognition techniques to classify different types of potential soil or rocks, a drillability classification model is built accurately to identify the current drilling formation. By combining suitable drilling parameters with the recognized drillability levels, a closed-loop drilling strategy is established finally, which can be applied to future interplanetary exploration.

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A soil flowing characteristics monitoring method in planetary drilling and coring verification experiments

Cited by 23 publications

References 22 publications

Numerical simulation on interaction process between impact penetrator and lunar soil particles for lunar subsurface exploration

Numerical simulation on interaction process between impact penetrator and lunar soil particles for lunar subsurface exploration

Rotary ultrasonic machining of rocks: An experimental investigation

Intelligent Drilling and Coring Technologies for Unmanned Interplanetary Exploration

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