Results 1 to 10 of about 34,486 (265)
Investigation of Displacement and Force Characteristics of Piezoelectric Multilayer Actuator for Active Preload Control System in Ultrasonic Motors [PDF]
MicromachinesThe paper represents both numerical simulations and experimental investigations of a piezoelectric active preload system that is foreseen to be applied to the active preload control system of rotors of ultrasonic piezoelectric motors.
Harsimran Singh Saini +2 more
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Study on Preload Monitoring of Ball Screw Feed Drive System Using Natural Frequency Detection [PDF]
한국정밀공학회지, 2018 This paper investigates the relationship between the preload level of a ball screw drive and the detected natural frequency of the system in an axial direction.
Tung Lam Nguyen +3 more
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Investigation of the effect of preload on the mechanical properties of fiber-reinforced geopolymer concrete [PDF]
مهندسی عمران شریف, 2022 Concrete may be loaded at an early age for a variety of reasons. This loading can have negative and sometimes destructive effects on the hardened properties of concrete.
A. Sadr Momtazi, K. Gholipour, R. Kohani
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Performance Evaluation of a Variable Preload Spindle by Using Linear Actuator [PDF]
한국정밀공학회지, 2017 Bearings having a small clearance during normal operation are selected. In some cases, bearings having a negative clearance when mounted are selected, to generate internal stress which enables achieving various effects.
Dong-Hyeon Kim +3 more
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JAI (Jurnal Anestesiologi Indonesia), 2014 Latar belakang : Pemberian preload untuk mencegah hipotensi pada anestesi spinal dapat mempengaruhi keseimbangan cairan tubuh. Tujuan : Untuk melihat perbedaan elektrolit plasma dan tekanan darah antara preload RAM dibandingkan dengan RL.
Ifar Irianto Yudhowibowo +2 more
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Analysis of Preload of Three-Stator Ultrasonic Motor
Micromachines, 2021 The pre-pressure device of the ultrasonic motor plays a vital role in the design of the entire motor structure, the contact state of the stator and rotor of the motor, dynamic properties of the stator, friction and wear characteristics of the rotor; even
Zheng Li +4 more
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Metals, 2021 The influence of the working load on the dynamic loading of the bolt was investigated in our study for two cases of flange joints. The analytical calculation according to the Verein Deutscher Ingenieure (VDI) 2230 recommendation and the numerical ...
Ivan Okorn +3 more
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An experimental study on the rotational accuracy of variable preload spindle-bearing system
Advances in Mechanical Engineering, 2018 The rotational performance of the spindle-bearing system has critical influence upon the geometric shape and surface roughness of the machined parts. The effects of preload and preload method on the rotational performance of the spindle-bearing system is
Gaofeng Hu +6 more
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Advances in Mechanical Engineering, 2017 The bearing preload plays an important role on the bearing performance, particularly the important characteristics of the bearing include bearing temperature increases, the bearing fatigue life, and ball skidding.
Yanfang Dong, Zude Zhou, Mingyao Liu
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Investigation of multiple spindle characteristics under non-uniform bearing preload
Advances in Mechanical Engineering, 2016 The non-uniform distribution load during machining and assembly process is crucial for spindle system, especially in complex working conditions. The conception of non-uniform preload adjustment approach was proposed and experimentally investigated in ...
Yanfei Zhang +4 more
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