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Ahmed Elgamal and Nissreen Elfaris
The tunnel boring method (TBM) is a widely used and effective tunneling technology in various rock mass quality circumstances. A ?faulted rock mass? can range from a highly fractured rock mass to a sheared weak rock mass, making the ground conditions cha...
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Yuanyuan Zhang, Chunling Ren, Haodong Meng and Yong Wang
To enhance the dynamic performance of half-vehicle seat systems and reduce vibrations in both the vertical and pitching directions, a nonlinear energy sink inerter (NESI) can be introduced and aligned with lightweight design principles. A dynamic model o...
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Dongyang Yu, Jianfei He, Feihu Peng, Cheng Qian, Ying Zang, Minghua Zhang, Wenwu Yang, Guoxiang Zeng, Jianpeng Chen, Wei Qin and Zaiman Wang
To elucidate the vibrational characteristics of power chassis in paddy fields, we examined the Yanmar VPG6G rice transplanter across diverse terrains, including paddy fields, dry land, and concrete roads. Vibrational acceleration measurements, taken in l...
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Roberto Sañudo, Marina Miranda, Borja Alonso and Valeri Markine
Sleeper spacing has been a taboo subject throughout the railway?s history. Safety concerns related to the structural integrity have been the main causes of not addressing this matter. There are no specific and clear recommendations or guidelines in relat...
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Michael Thome, Ould el Moctar and Thomas E. Schellin
Comparative hydrodynamic loads caused by a focused wave acting on differently sized slender vertical cylinders placed in a wave canal were predicted at model scale using an unsteady Reynolds-averaged Navier?Stokes (URANS) solver and the Morison equation....
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Chiara Bedon
Knowledge of body motion features and walk-induced effects is of primary importance for the vibration analysis of structures, especially low-frequency slabs and lightweight and/or slender systems, as well as for clinical applications. Structurally speaki...
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Abdollah Malekjafarian, Eugene J. OBrien, Paraic Quirke, Daniel Cantero and Fatemeh Golpayegani
This paper presents an innovative numerical framework for railway track monitoring using acceleration measurements from sensors installed on a passenger train. A numerical model including a 10 degrees of freedom train passing over a three-layer track is ...
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Jorge Braulio Cossío Durán,José Leomar Fernandes Júnior
Pág. 147 - 159
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Purnendu Mondal and Subramaniam Arunachalam
The comfort level of the human occupant inside a dynamic vehicle is dependent on the level of vibration generated inside the different segments of the human body. Some technologies have been developed to provide the final level of vibration inside an aut...
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Oleksij Fomin,Alyona Lovska,Viktoria Kudelya,Iryna Smyrnova
Pág. 33 - 41
The bearing structure of a covered rail wagon has been improved to enable firing from it at motion. The covered wagon of model 11?217 was chosen as a prototype. To enable firing in the vertical plane, it has been proposed to use a sliding roof, which con...
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