Structural design, accuracy analysis, and mechanical calibration of a small two-component docking mechanism for large loads in space DOI Creative Commons

J. Zhang,

Junjie Li, Chong Zhao

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 7, 2025

Currently, the passive part of space station platform's docking device has been finalized, emphasizing need for a mechanism that enables on-orbit assembly large payloads using in-situ resources. This paper presents design compact, high-precision dual-component loads. First, we propose parametric active and sides, accompanied by constraint equations capture mechanism. Next, progressive positioning method, beginning with coarse correction followed fine correction, is proposed. The calibration performance are analyzed to initially deviations achieve high-accuracy electrical hydraulic connectors subsequently. Static analysis both single dual components reveals positive correlation between load-carrying capacity diameter. During prototype testing, maximum positional were measured 0.12 mm in X-direction, 0.5 Y-direction, 0.07 Z-direction. angular deviation was 0.04° when operated together. Finally, impact axial radial conditions orbit verify loading requirements satisfied. work offers theoretical technical insights future development mechanisms

Language: Английский

Knowledge evolution and trends in cooperatives and cohousing: A bibliometric overview DOI Creative Commons

Liu Fagang,

Francisco Javier S. Lacárcel, Virginia Simón-Moya

et al.

Journal of Innovation & Knowledge, Journal Year: 2025, Volume and Issue: 10(1), P. 100647 - 100647

Published: Jan. 1, 2025

Language: Английский

Citations

0

Evaluating solar power plant sites using integrated GIS and MCDM methods: a case study in Kermanshah Province DOI Creative Commons
Iman Zandi, Aynaz Lotfata

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Jan. 26, 2025

This study utilizes an integrated Geographic Information System (GIS)-based Multi-Criteria Decision-Making (MCDM) approach to perform Solar Power Plant Site Selection (SPPSS) in Kermanshah Province, Iran. It introduces a novel group weighting method, the Dempster-based Best-Worst Method (DBWM), which combines weights vectors derived from experts' opinions. The also conducts comprehensive sensitivity analysis comparing four GIS-based models for SPPSS. Findings indicate that Inverse Distance Weighted (IDW) method is most precise interpolation, was subsequently applied analysis. Results demonstrate DBWM-Technique Order Preference by Similarity Ideal Solution (GIS-based DBWM-TOPSIS) model stable, identifying slope as primary criterion Based on this model, 3% of area classified very low suitability, 9% low, 24% moderate, 33% high, and 31% high suitability. highlights substantial impact selecting appropriate spatial techniques uses normalization standardize input criteria with varied units ranges, enhancing comparability within MCDM process. Eslamabad-e Gharb, Kangavar, Gilan-e Gharb counties emerged suitable locations solar power plant (SPP) development.

Language: Английский

Citations

0

Understanding twitter in crisis: a roadmap for public sector decision makers with multi-criteria decision making DOI

Zekiye Tamer,

Gülay Demir, Sefer DARICI

et al.

Environment Development and Sustainability, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Language: Английский

Citations

0

Roadmap for transitioning India’s privately owned bus fleets to electric fleets DOI
Ann Mary Varghese, Rudra P. Pradhan

Transportation Research Part D Transport and Environment, Journal Year: 2025, Volume and Issue: 140, P. 104623 - 104623

Published: Jan. 31, 2025

Language: Английский

Citations

0

Structural design, accuracy analysis, and mechanical calibration of a small two-component docking mechanism for large loads in space DOI Creative Commons

J. Zhang,

Junjie Li, Chong Zhao

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: Feb. 7, 2025

Currently, the passive part of space station platform's docking device has been finalized, emphasizing need for a mechanism that enables on-orbit assembly large payloads using in-situ resources. This paper presents design compact, high-precision dual-component loads. First, we propose parametric active and sides, accompanied by constraint equations capture mechanism. Next, progressive positioning method, beginning with coarse correction followed fine correction, is proposed. The calibration performance are analyzed to initially deviations achieve high-accuracy electrical hydraulic connectors subsequently. Static analysis both single dual components reveals positive correlation between load-carrying capacity diameter. During prototype testing, maximum positional were measured 0.12 mm in X-direction, 0.5 Y-direction, 0.07 Z-direction. angular deviation was 0.04° when operated together. Finally, impact axial radial conditions orbit verify loading requirements satisfied. work offers theoretical technical insights future development mechanisms

Language: Английский

Citations

0