Results 181 to 190 of about 183,967 (321)

The impact of multidirectional excitation on the stick-slip vibration characteristics of a drill string. [PDF]

Sci Rep
Hongshan Z, Wenchang W, Kaixian A.
europepmc   +1 more source

Vibration transmission through rolling element bearings in geared rotor system, part 1 [PDF]

A mathematical model is proposed to examine the vibration transmission through rolling element bearings in geared rotor systems. Current bearing models, based on either ideal boundary conditions for the shaft or purely translational stiffness element ...
Lim, Teik Chin, Singh, Rajendra
core   +1 more source

A Study for the Characteristics of Torsional Vibration Damping in Diesel Engines

JOURNAL OF THE MARINE ENGINEERING SOCIETY IN JAPAN, 1984
Shoichi Iwamoto, Katsuhiko Wakabayashi, Yasunori Mukawa   +2 more
openaire   +3 more sources

The Pier Luigi Nervi's concrete structure of Palazzetto dello Sport: Modeling and dynamic characterization

Structural Concrete, EarlyView.
Abstract This paper presents a numerical and experimental study aimed at the modeling and dynamic characterization of the reinforced concrete structure of the Palazzetto dello Sport in Rome, designed and by Pier Luigi Nervi with Annibale Vitellozzi, and built by Nervi & Bartoli contractors in 1956‐57.
Jacopo Ciambella, Gianluca Ranzi, Francesco Romeo   +2 more
wiley   +1 more source

Study on the vibration characteristic of crankshaft of single cylinder compressor based on crosshead settlement

Jixie qiangdu
The acceleration of the reciprocating parts of the compressor with the crosshead settlement fluctuates violently, and the comprehensive piston force becomes larger, which leads to the increase of the vibration amplitude of the crankshaft and the ...
HUANG Zhiqiang, WANG Cheng, LI Tao, ZHANG Guoxu, LI Gang   +4 more
doaj  

Study on the Low-Damage Material Removal Mechanism of Silicon Carbide Ceramics Under Longitudinal-Torsional Ultrasonic Grinding Conditions. [PDF]

Micromachines (Basel)
Liu J, Ma Z, Yan Y, Yuan D, Wang Y.
europepmc   +1 more source

Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods

Structural Concrete, EarlyView.
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley   +1 more source

Electrostatically actuated MEMS resonators for magnetic and electric field sensing: a review. [PDF]

Microsyst Nanoeng
Koh D, Jung Y, Kim J.
europepmc   +1 more source

Axial muscle‐fibre orientations in larval zebrafish

Journal of Anatomy, Volume 246, Issue 4, Page 517-533, April 2025.
In 4 days post‐fertilization zebrafish larvae, the fast axial muscle fibres follow helical trajectories that taper towards the tail. Adjacent muscle fibres form substantial angles relative to each other to accommodate this pattern. Using a novel semi‐automatic method, we quantified 3D fibre angles over the whole muscle volume.
Noraly M. M. E. van Meer, Johan L. van Leeuwen, Henk Schipper, Martin J. Lankheet   +3 more
wiley   +1 more source

End Surface Grinding Machinability of Zirconia Ceramics via Longitudinal-Torsional Coupled Vibration Rotary Ultrasonic Machining. [PDF]

Micromachines (Basel)
Chen F, Bie W, Li K, Ma X.
europepmc   +1 more source