نتایج جستجو برای: clamping force

تعداد نتایج: 192948  

2017
Giseo Park Seibum B. Choi

The electromechanical brake (EMB) is expected to be utilized for future brake systems due to its many advantages. In this paper, keeping commercialization of EMB in mind, a new EMB clamping force controller is proposed to overcome the limitations of an existing controller, namely, extra cost for sensor installation and response delay. To design the controller, both mechanical parts and electric...

2015
B Tesfa

Many industrial structures associated with railway infrastructures rely on a large number of bolted joint connections to ensure safe and reliable operation of the track and trackside furniture. Significant sums of money are spent annually to repair the damage caused by bolt failures and to maintain the integrity of bolted structures. In the U.K., Network Rail (the organization responsible for r...

2014
Johannes Rieger Andreas Isacsson Maximilian J. Seitner Jörg P. Kotthaus Eva M. Weig

Clamping losses are a widely discussed damping mechanism in nanoelectromechanical systems, limiting the performance of these devices. Here we present a method to investigate this dissipation channel. Using an atomic force microscope tip as a local perturbation in the clamping region of a nanoelectromechanical resonator, we increase the energy loss of its flexural modes by at least one order of ...

2010
Huifang Wang Shuyi Wang Ying Zhou Jie Tan

Reliability of medical instruments such as hemostats is extremely important because these instruments are used in patients who are in critical condition. Clamping force of hemostats, as an important parameter of hemostats, should be detected. However, it could not be tested directly. In order to test it, a testing system has been put forward. The system is comprised of sensor, acquisition card,...

2012
Philipp Blumenthal Annika Raatz

Even though significant progress has been made in the field of micro production and the development of miniaturized micro production-machines in the last ten years, an explicit consideration of clampingdevices has not taken place. The requirements for clamping technology in the manufacturing of microparts and the manufacturing of macroscale parts are highly different. Special clamping devices f...

Anil B. Shinde Shivaji G. Chavan,

Presents article is deal with optimization of the fixture for end milling process, the most important objective being the minimization of work piece deformation by changing the layout of fixture elements and the clamping forces. The main objective of this work has been the optimization of the fixtures Work piece deformation subjected to clamping forces for End milling operation. The present ana...

2005
D. M. Brouwer B. R. de Jong J. Van Dijk

⎯ A design is presented for a large force (0.5 mN) high precision MEMS clamping mechanism. The clamp is part of a MEMS TEM sample manipulator, which needs to be fixed un-powered once positioned. The elastic deformation of the clamp suspension has been optimized to not influence the TEM sample manipulator position during clamping. The dimensions of the elastic elements have been further optimize...

Journal: :The International Journal of Advanced Manufacturing Technology 2022

The aeronautic manufacturing industry has been seeking to enhance competitiveness and product quality by applying the Industry 4.0’s technologies. Particularly, on roadmap of digital twin era, a way achieve reduction in time thus production cost is obtain prediction models main elementary assembly operations functions within aircraft process, such as clamping force applied temporary fasteners a...

Journal: :Nano letters 2014
Mehmet Aykol Bingya Hou Rohan Dhall Shun-Wen Chang William Branham Jing Qiu Stephen B Cronin

We investigate the role of weak clamping forces, typically assumed to be infinite, in carbon nanotube mechanical resonators. Due to these forces, we observe a hysteretic clamping and unclamping of the nanotube device that results in a discrete drop in the mechanical resonance frequency on the order of 5-20 MHz, when the temperature is cycled between 340 and 375 K. This instability in the resona...

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