PERFORMANCE MODELING OF A SMART MATERIAL HYDRAULIC ACTUATOR

被引：0
|
作者：
Larson, John R. [1 ]
Dapino, Marcelo J. [1 ]
机构：
[1] Ohio State Univ, Dept Mech & Aerosp Engn, Smart Mat & Struct Lab, Columbus, OH 43210 USA
来源：
PROCEEDINGS OF THE ASME CONFERENCE ON SMART MATERIALS, ADAPTIVE STRUCTURES AND INTELLIGENT SYSTEMS, VOL 2 | 2012年
关键词：
PUMP DEVELOPMENT; DESIGN; VALVES; NICKEL;
D O I：
暂无
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Smart Material Hydraulic Actuators (SMEHAs) allow high-energy-density materials, such as piezoelectrics and magnetostrictives, to be used to develop compact, high-power actuators. Hydraulic rectification using check valves converts the high-frequency, small-displacement motion of a smart material to large displacements of a hydraulic actuator. In this paper, the performance of a magnetostrictive actuator is evaluated over a range of input frequencies and loading conditions and compared to model results of the overall system. The system's dynamic performance is found to depend highly on the response of both the check valves used to rectify the motion of the smart material driver and the fluid system, including the passages connecting the smart material pump to the output hydraulic cylinder. Using AMESim, a model is developed for the response of the system and compared to experimental results.
引用
收藏
页码：497 / 503
页数：7
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