Recent topics in ceramic actuators-to improve reliability and durability

Uchino, Kenji

doi:10.1109/isaf.1990.200215

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…For these actuators, delamination typically occurs within 10 5 to 10 6 cycles, well below the range required by most industries. 5,6 The failure modes of these actuation architectures are difficult to identify, research, and address since it is dependent upon the individual design. Most of the modeling effort has focused on capturing the stress distribution within conventional actuators.…”

Section: Introductionmentioning

confidence: 99%

Reliability Study of DEPP Functionally Graded Piezoceramic Actuators

Alexander¹,

Brei²,

Halloran³

2006

47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

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Section: Introductionmentioning
confidence: 99%

Reliability Study of DEPP Functionally Graded Piezoceramic Actuators
Alexander¹,
Brei²,
Halloran³
2006
47th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference
0
0
0
0
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“…Additionally, Uchino (1990Uchino ( , 1993 proposed signal control systems that would reduce electro-mechanical shocking of actuators caused by unnecessarily severe control signals. At AVX Corporation, process and design related parameters have been identified as the fundamental causes for early failures.…”

Section: Introductionmentioning
confidence: 99%

Reliability Studies on Electrostrictive Actuators
Kumar
¹
,
Randall
²
,
Hock
³

et al. 1994
Journal of Intelligent Material Systems and Structures
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Multilayer electrostrictive actuators have numerous applications. Frequently these applications involve harsh mechanical and electrical loads. Furthermore, it is typically expected that these loads be incurred for > 10 8 repetitions (ideally for an infinite number of cycles). This paper describes the electrical and electro-mechanical analyses used at AVX Corporation to assess the performance characteristics of multilayer ceramic actuators, and addresses the effects of electromechanical cycling on selected device properties.In this study, lead magnesium niobate based multilayer electrostrictive actuators were subjected to a.c. fields at rated device voltage. Capacitance, dissipation factor, displacement vs. voltage, displacement hysteresis, electro-mechanical quality factor, and resonant frequency were monitored as a function of electro-mechanical cycling. The actuators exhibited highly stable displacements throughout the investigation. Changes observed in other properties indicate a possibility of using them as NDE techniques to assess the actuator reliability.

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Recent topics in ceramic actuators-to improve reliability and durability

Cited by 2 publications

References 8 publications

Reliability Study of DEPP Functionally Graded Piezoceramic Actuators

Reliability Study of DEPP Functionally Graded Piezoceramic Actuators

Reliability Studies on Electrostrictive Actuators

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