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Advances in Methane Production from Coal, Shale and Other Tight Rocks
| Advances in Methane Production from Coal, Shale and Other Tight Rocks |
| Autore | Li Yong |
| Pubbl/distr/stampa | Basel, : MDPI - Multidisciplinary Digital Publishing Institute, 2022 |
| Descrizione fisica | 1 electronic resource (188 p.) |
| Soggetto topico |
Technology: general issues
History of engineering & technology History of engineering and technology |
| Soggetto non controllato |
gel–foam
chitosan acrylic acid coal gangue InSAR monitoring carbon capture and storage feasibility assessment model low-field NMR coal free methane paramagnetic mineral submarine channel submarine fan source-to-sink gas reservoirs South China Sea Yinggehai Basin pore structure shale gas N2 adsorption experiment molecular simulation pore connectivity tight sandstone coal measure southern margin of Junggar basin diagenetic process reservoir quality control reservoir forming carbonate cavern reservoir application pre-stack inversion model grey correlation method multiple linear regression production evaluation main control factor estimated ultimate recovery coalbed methane (CBM) prestack seismic inversion brittle index gas-bearing property fractures complex fracture net formation of bedding Fuling area |
| ISBN | 3-0365-6004-1 |
| Formato | Materiale a stampa  |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9910639993303321 |
Li Yong
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| Basel, : MDPI - Multidisciplinary Digital Publishing Institute, 2022 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Advances in Solar Thermal Energy Harvesting, Storage and Conversion
| Advances in Solar Thermal Energy Harvesting, Storage and Conversion |
| Autore | Qiu Yu |
| Pubbl/distr/stampa | MDPI - Multidisciplinary Digital Publishing Institute, 2025 |
| Descrizione fisica | 1 online resource |
| Soggetto topico | History of engineering and technology |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Record Nr. | UNINA-9911024052303321 |
| Qiu Yu | ||
| MDPI - Multidisciplinary Digital Publishing Institute, 2025 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
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Fretting Friction and Wear at Bolted Joint Interfaces
| Fretting Friction and Wear at Bolted Joint Interfaces |
| Autore | Li Dongwu |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Bristol : , : Institute of Physics Publishing, , 2024 |
| Descrizione fisica | 1 online resource (151 pages) |
| Disciplina | 621.8 |
| Altri autori (Persone) | XuChao |
| Collana | IOP Ebooks Series |
| Soggetto topico |
Bolted joints
Friction |
| ISBN |
9780750362160
0750362162 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- < -- named-book-part-body& -- #62 -- < -- p& -- #62 -- Bolted joints are a widely used mechanical fastening method, found in various machines, automobiles, aerospace systems, and architectural structures. Bolted connections offer strong preload along with the advantages of easy disassembly and low cost. However, a small amount of relative motion at connection interfaces, known as & -- #x02018 -- fretting& -- #x02019 -- , can lead to wear, preload loss, and nonlinear mechanical behavior, which can significantly impact the service l -- Acknowledgments -- Author biographies -- Chao Xu -- Dongwu Li -- Symbols -- Chapter Introduction -- 1.1 Background -- 1.2 Interface fretting test technology -- 1.3 Friction and wear behavior at joint interfaces -- 1.4 Contact modeling of joint interfaces -- 1.4.1 Spring element -- 1.4.2 Thin layer element -- 1.4.3 Zero-thickness element -- 1.4.4 Friction hysteresis model -- 1.5 Contribution and organization of this book -- Bibliography -- Chapter Fretting test method for bolted joint interface -- 2.1 Fretting test apparatus -- 2.1.1 Description of the test apparatus -- 2.1.2 Excitation system -- 2.1.3 Measurement system -- 2.1.4 Bolted joint specimens -- 2.2 Performance analysis of the test apparatus -- 2.2.1 Typical experimental results -- 2.2.2 Repeatability -- 2.2.3 Effect of excitation frequency -- 2.3 Measurement accuracy analysis -- 2.3.1 Finite element contact analysis -- 2.3.2 Lumped-parameter model of bolted joint -- 2.3.3 Correction of experimental results -- 2.4 Summary -- Bibliography -- Chapter Fretting wear of bolted joint interfaces under harmonic vibrations -- 3.1 Fretting wear experimental method -- 3.1.1 Bolted joint specimens -- 3.1.2 Wear test plan -- 3.2 Friction hysteresis curves -- 3.2.1 Effect of bolt preload -- 3.2.2 Effect of excitation amplitude.
3.3 Wear test results and discussion -- 3.3.1 Evolution of hysteresis loops -- 3.3.2 Evolution of bolt preloads -- 3.3.3 Evolution of contact parameters -- 3.3.4 Worn surfaces -- 3.4 Summary -- Bibliography -- Chapter Fretting wear of bolted joint interfaces under random vibrations -- 4.1 Fretting test method under random excitation -- 4.1.1 Narrowband random process -- 4.1.2 Fretting wear test plan -- 4.1.3 Stability of random excitation -- 4.2 Contact parameter estimation -- 4.2.1 Data processing strategy -- 4.2.2 Contact parameter estimation method -- 4.3 Results and discussion -- 4.3.1 Effect of bolt preload -- 4.3.2 Effect of excitation level -- 4.3.3 Effect of surface roughness -- 4.4 Summary -- Bibliography -- Chapter A phenomenological modeling method for friction hysteresis -- 5.1 Introduction -- 5.2 Generalized Iwan model -- 5.2.1 The Iwan model and density function -- 5.2.2 Modeling method of generalized Iwan model -- 5.2.3 Effect of contact pressure distribution on friction -- 5.3 Analytical validation in a spherical contact -- 5.3.1 Mindlin analytical solution -- 5.3.2 Modeling sphere-on-sphere contact -- 5.3.3 Comparison with the analytical solution -- 5.4 Experimental validation in a plane contact -- 5.4.1 Modeling friction hysteresis in lap joints -- 5.4.2 Model validation -- 5.4.3 Model parametric analysis -- 5.5 Summary -- Bibliography -- Chapter Modeling friction hysteresis at bolted joint interfaces -- 6.1 Contact pressure at bolted joint interfaces -- 6.2 Modeling friction hysteresis -- 6.2.1 Sliding stress distribution -- 6.2.2 Iwan density function -- 6.2.3 Force-displacement relationship -- 6.3 Quasi-static experimental verification -- 6.4 Dynamics prediction of a bolted joint structure -- 6.4.1 The Gaul resonator -- 6.4.2 Dynamic response calculation method -- 6.4.3 Dynamic response -- 6.5 Summary -- Bibliography. Chapter A physics-based multi-scale friction model -- 7.1 The multi-scale modeling approach -- 7.1.1 Contact pressure -- 7.1.2 Fractal contact model -- 7.1.3 Normal contact -- 7.1.4 Tangential contact stiffness -- 7.1.5 Friction hysteresis -- 7.2 Experimental tests -- 7.2.1 Experimental method -- 7.2.2 Experimental results -- 7.3 Model validation and discussion -- 7.3.1 Model parameter estimation -- 7.3.2 Model validation -- 7.3.3 Effect of contact radius -- 7.3.4 Effect of interface discretization -- 7.4 Summary -- Bibliography -- Chapter Modeling of wear at bolted joint interfaces -- 8.1 Introduction -- 8.2 Wear-dependent contact parameters -- 8.3 Wear model -- 8.4 Influence of wear on the dynamic response -- 8.5 Summary -- Bibliography. |
| Record Nr. | UNINA-9911117379303321 |
|
Li Dongwu
|
||
| Bristol : , : Institute of Physics Publishing, , 2024 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||
Fretting Friction and Wear at Bolted Joint Interfaces
| Fretting Friction and Wear at Bolted Joint Interfaces |
| Autore | Li Dongwu |
| Edizione | [1st ed.] |
| Pubbl/distr/stampa | Bristol : , : Institute of Physics Publishing, , 2024 |
| Descrizione fisica | 1 online resource (151 pages) |
| Disciplina | 621.8 |
| Altri autori (Persone) | XuChao |
| Collana | IOP Ebooks Series |
| Soggetto topico |
Bolted joints
Friction |
| ISBN |
9780750362160
0750362162 |
| Formato | Materiale a stampa |
| Livello bibliografico | Monografia |
| Lingua di pubblicazione | eng |
| Nota di contenuto |
Intro -- < -- named-book-part-body& -- #62 -- < -- p& -- #62 -- Bolted joints are a widely used mechanical fastening method, found in various machines, automobiles, aerospace systems, and architectural structures. Bolted connections offer strong preload along with the advantages of easy disassembly and low cost. However, a small amount of relative motion at connection interfaces, known as & -- #x02018 -- fretting& -- #x02019 -- , can lead to wear, preload loss, and nonlinear mechanical behavior, which can significantly impact the service l -- Acknowledgments -- Author biographies -- Chao Xu -- Dongwu Li -- Symbols -- Chapter Introduction -- 1.1 Background -- 1.2 Interface fretting test technology -- 1.3 Friction and wear behavior at joint interfaces -- 1.4 Contact modeling of joint interfaces -- 1.4.1 Spring element -- 1.4.2 Thin layer element -- 1.4.3 Zero-thickness element -- 1.4.4 Friction hysteresis model -- 1.5 Contribution and organization of this book -- Bibliography -- Chapter Fretting test method for bolted joint interface -- 2.1 Fretting test apparatus -- 2.1.1 Description of the test apparatus -- 2.1.2 Excitation system -- 2.1.3 Measurement system -- 2.1.4 Bolted joint specimens -- 2.2 Performance analysis of the test apparatus -- 2.2.1 Typical experimental results -- 2.2.2 Repeatability -- 2.2.3 Effect of excitation frequency -- 2.3 Measurement accuracy analysis -- 2.3.1 Finite element contact analysis -- 2.3.2 Lumped-parameter model of bolted joint -- 2.3.3 Correction of experimental results -- 2.4 Summary -- Bibliography -- Chapter Fretting wear of bolted joint interfaces under harmonic vibrations -- 3.1 Fretting wear experimental method -- 3.1.1 Bolted joint specimens -- 3.1.2 Wear test plan -- 3.2 Friction hysteresis curves -- 3.2.1 Effect of bolt preload -- 3.2.2 Effect of excitation amplitude.
3.3 Wear test results and discussion -- 3.3.1 Evolution of hysteresis loops -- 3.3.2 Evolution of bolt preloads -- 3.3.3 Evolution of contact parameters -- 3.3.4 Worn surfaces -- 3.4 Summary -- Bibliography -- Chapter Fretting wear of bolted joint interfaces under random vibrations -- 4.1 Fretting test method under random excitation -- 4.1.1 Narrowband random process -- 4.1.2 Fretting wear test plan -- 4.1.3 Stability of random excitation -- 4.2 Contact parameter estimation -- 4.2.1 Data processing strategy -- 4.2.2 Contact parameter estimation method -- 4.3 Results and discussion -- 4.3.1 Effect of bolt preload -- 4.3.2 Effect of excitation level -- 4.3.3 Effect of surface roughness -- 4.4 Summary -- Bibliography -- Chapter A phenomenological modeling method for friction hysteresis -- 5.1 Introduction -- 5.2 Generalized Iwan model -- 5.2.1 The Iwan model and density function -- 5.2.2 Modeling method of generalized Iwan model -- 5.2.3 Effect of contact pressure distribution on friction -- 5.3 Analytical validation in a spherical contact -- 5.3.1 Mindlin analytical solution -- 5.3.2 Modeling sphere-on-sphere contact -- 5.3.3 Comparison with the analytical solution -- 5.4 Experimental validation in a plane contact -- 5.4.1 Modeling friction hysteresis in lap joints -- 5.4.2 Model validation -- 5.4.3 Model parametric analysis -- 5.5 Summary -- Bibliography -- Chapter Modeling friction hysteresis at bolted joint interfaces -- 6.1 Contact pressure at bolted joint interfaces -- 6.2 Modeling friction hysteresis -- 6.2.1 Sliding stress distribution -- 6.2.2 Iwan density function -- 6.2.3 Force-displacement relationship -- 6.3 Quasi-static experimental verification -- 6.4 Dynamics prediction of a bolted joint structure -- 6.4.1 The Gaul resonator -- 6.4.2 Dynamic response calculation method -- 6.4.3 Dynamic response -- 6.5 Summary -- Bibliography. Chapter A physics-based multi-scale friction model -- 7.1 The multi-scale modeling approach -- 7.1.1 Contact pressure -- 7.1.2 Fractal contact model -- 7.1.3 Normal contact -- 7.1.4 Tangential contact stiffness -- 7.1.5 Friction hysteresis -- 7.2 Experimental tests -- 7.2.1 Experimental method -- 7.2.2 Experimental results -- 7.3 Model validation and discussion -- 7.3.1 Model parameter estimation -- 7.3.2 Model validation -- 7.3.3 Effect of contact radius -- 7.3.4 Effect of interface discretization -- 7.4 Summary -- Bibliography -- Chapter Modeling of wear at bolted joint interfaces -- 8.1 Introduction -- 8.2 Wear-dependent contact parameters -- 8.3 Wear model -- 8.4 Influence of wear on the dynamic response -- 8.5 Summary -- Bibliography. |
| Record Nr. | UNINA-9911154291203321 |
| Li Dongwu | ||
| Bristol : , : Institute of Physics Publishing, , 2024 | ||
| Materiale a stampa | ||
| Lo trovi qui: Univ. Federico II | ||
| ||