Measurement of Mechanical and Electrical Energy Flows in the Semiactive Piezoelectric Shunt Damping System

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24220%2F10%3A%230001735" target="_blank" >RIV/46747885:24220/10:#0001735 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Measurement of Mechanical and Electrical Energy Flows in the Semiactive Piezoelectric Shunt Damping System
Original language description
A semiactive vibration control system with a piezoelectric element and a negative impedance circuit was successfully realized. Properly set negative impedance can change the effective elasticity of the piezoelectric element and, therefore, it can changethe ratio between transmitted, reflected and absorbed energy of the mechanical vibrations. Reflecting or absorbing the incident vibration energy results in the complete mechanical isolation of a given object. Recent efforts are focused on broadening theeffective frequency range and improving the energy consumption efficiency of such systems. Energy consumption efficiency is an important factor in battery-powered service-free applications. The paper presents results of a theoretical analysis of the mechanical energy flow in the vibration control system. Results of the theoretical analysis are compared with results of measurements taken on the system composed of the bulk piezoelectric actuator connected to the negative impedance control
Czech name
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Czech description
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Project
<a href="/en/project/GA101%2F08%2F1279" target="_blank" >GA101/08/1279: Modern methods for noise and vibration suppression using piezoelectric materials</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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