Results 31 to 40 of about 2,542,287 (293)

A Dynamic Analysis of a Flexible Rotor in Ball Bearings with Nonlinear Stiffness Characteristics

open access: yesInternational Journal of Rotating Machinery, 1997
This paper presents an effective analysis approach for a flexible rotor in ball bearings with nonlinear stiffness characteristics to obtain realistic dynamic behavior results.
Dong-Soo Lee, Dong-Hoon Choi
doaj   +1 more source

Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing

open access: yesSensors, 2014
The objective of the present study was to deal with the rotordynamics of the rotor of an ultra-high speed PM type synchronous motor-generator for a 500 W rated micro gas turbine generator.
Do-Kwan Hong   +4 more
doaj   +1 more source

Predicting Maximal Oxygen Uptake Using the 3-Minute All-Out Test in High-Intensity Functional Training Athletes

open access: yesSports, 2020
Maximal oxygen uptake (VO2max) and critical speed (CS) are key fatigue-related measurements that demonstrate a relationship to one another and are indicative of athletic endurance performance.
Joshua D. Dexheimer   +5 more
doaj   +1 more source

On shock waves in solids [PDF]

open access: yes, 2007
This paper describes some recent theoretical results pertaining to the experimentally-observed relation between the speed of a shock wave in a solid and the particle velocity immediately behind the shock. The new feature in the present analysis is the
Knowles, James K.
core   +1 more source

Evaluation of Critical Speed for Active Steering Bogie Prototype [PDF]

open access: yes한국정밀공학회지, 2017
Critical speed analysis was conducted for a active steering bogie prototype, developed to improve the curving performance of railway vehicles. The critical speed for the design concept was about 169.2k m/h. To validate the analysis result, we performed a
Hyun Moo Hur, Joon-Hyuk Park
doaj   +1 more source

Influence of the Technical Condition of the Running System of Articulated Buses on Stability of Their Straight-Line Motion

open access: yesCommunications, 2023
Among the most important operational properties of articulated buses, ensuring their safety, it is necessary to note the course stability of traffic (CST), as often the loss of CST of a vehicle is accompanied by an accident.
Volodymyr Sakhno   +6 more
doaj   +1 more source

Critical speed analysis of rotors [PDF]

open access: yes, 1970
General frequency equation is developed for both forward and backward precession of rigid rotors in undamped bearings on flexible foundations. As well as major critical speeds, nonsynchronous critical speeds that may result from bearing defects can be ...
Cavicchi, R. H.
core   +1 more source

Forces on Centrifugal Pump Impellers [PDF]

open access: yes, 1985
Forces are exerted on a centrifugal pump impeller, due to the asymmetry of the flow caused by the volute of diffuser, and to the motion of the center of the impeller whenever the shaft whirls. Recent work in the measurement of these forces as a function
Acosta, Allan   +3 more
core   +1 more source

Real‐World Pediatric Blinatumomab Administration: Access to Outpatient Care Delivery and Impact of a Hospital‐Dispensed Model

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Blinatumomab has been shown to be highly effective for patients with pediatric B‐ALL and has recently become standard of care therapy. Due to its past use in the clinical trial setting, there is limited information available about real‐world administration.
Katelyn Oranges   +12 more
wiley   +1 more source

Threshold Crack Speed Controls Dynamical Fracture of Silicon Single Crystals [PDF]

open access: yes, 2007
Fracture experiments of single silicon crystals reveal that after the critical fracture load is reached, the crack speed jumps from zero to [approximate]2 km/sec, indicating that crack motion at lower speeds is forbidden.
Buehler, Markus J.   +3 more
core   +1 more source

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