Improving Throughput of Power-Constrained GPUs Using Dynamic Voltage/Frequency and Core Scaling

2011 ◽  
Author(s):  
Jungseob Lee ◽  
Vijay Sathisha ◽  
Michael Schulte ◽  
Katherine Compton ◽  
Nam Sung Kim
Keyword(s):  
Dynamic Voltage ◽  
Voltage Frequency

scholarly journals Investigation of the Dynamic Breakdown of a Dielectric Elastomer Actuator Under Cyclic Voltage Excitation

2021 ◽  
Vol 8 ◽  
Author(s):  
Xuejing Liu ◽  
Yu Xing ◽  
Wenjie Sun ◽  
Zhouqiang Zhang ◽  
Shengqi Guan ◽  
...  
Keyword(s):  
Dielectric Elastomer ◽  
Cycle Number ◽  
Factors Affecting ◽  
Dynamic Excitation ◽  
Dielectric Elastomer Actuators ◽  
Dynamic Voltage ◽  
Voltage Frequency ◽  
Smart Actuator ◽  
Underlying Mechanisms ◽  
Power Law Equation

The dielectric elastomer (DE) is a new kind of functional polymer that can be used as a smart actuator due to the large deformation induced by voltage excitation. Dielectric elastomer actuators (DEAs) are usually excited by dynamic voltages to generate alternating motions. DEAs are prone to premature breakdown failure during the dynamic excitation, while the research on the breakdown of DEAs under cyclic voltage excitation is still not fully revealed. In this paper, the dynamic breakdown behaviors of DEAs made from VHB4910 film were experimentally investigated. The factors affecting the breakdown behavior of DEAs under dynamic voltages were determined, and the relevant changing laws were summarized accordingly. The experimental results show that under dynamic voltage excitation, the critical breakdown voltage of DEAs were augmented slowly with voltage frequency and showed a substantial dispersion. In addition, the maximum cycle numbers before breakdown were significantly affected by voltage parameters (such as frequency, amplitude, waveform). Finally, the underlying mechanisms of breakdown under cyclic voltages were discussed qualitatively, a power-law equation was proposed to characterize the maximum cycle number for the dynamic breakdown of DEAs, and related parameters were fitted. This study provides a new path to predict the service life of DEAs under dynamic voltage.

Allocation of energy-efficient tasks in cloud using dynamic voltage frequency scaling

2017 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Sanjay Kumar Jena ◽  
Bibhudatta Sahoo ◽  
Sambit Kumar Mishra ◽  
Sampa Sahoo ◽  
Md Akram Khan
Keyword(s):  
Energy Efficient ◽  
Frequency Scaling ◽  
Dynamic Voltage ◽  
Voltage Frequency
Sign in / Sign up

Export Citation Format

Share Document