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Title: Development of a Simple Structured Artificial Muscle Using SMA Wire

Abstract

Artificial heart muscle using SMA wire is developed to assist weaken heartbeat. Simple structure design was adopted for large output force, large displacement and rapid cyclic motion of the actuator. The actuator was designed and fabricated from the viewpoint of heat transfer. Moving performance of the actuator was experimentally measured under 10N of loading condition. Under the maximum efficiency condition, the actuator shows cyclic motion with 1mm of displacement and time period of about 2 seconds in one cycle.

Authors:
; ;  [1]
  1. Institute of Fluid Science, Tohoku University, 2-1-1, Katahira, Aoba-ku, Sendai, 980-8577 (Japan)
Publication Date:
OSTI Identifier:
20798669
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 832; Journal Issue: 1; Conference: 2. international conference on flow dynamics, Sendai (Japan), 16-18 Nov 2005; Other Information: DOI: 10.1063/1.2204540; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACTUATORS; ALLOYS; ARTIFICIAL ORGANS; DESIGN; EFFICIENCY; HEAT TRANSFER; LOADING; MUSCLES; PERFORMANCE; SHAPE MEMORY EFFECT; WIRES

Citation Formats

Ibuki, Ryuta, Maruyama, Shigenao, and Komiya, Atsuki. Development of a Simple Structured Artificial Muscle Using SMA Wire. United States: N. p., 2006. Web. doi:10.1063/1.2204540.
Ibuki, Ryuta, Maruyama, Shigenao, & Komiya, Atsuki. Development of a Simple Structured Artificial Muscle Using SMA Wire. United States. doi:10.1063/1.2204540.
Ibuki, Ryuta, Maruyama, Shigenao, and Komiya, Atsuki. Fri . "Development of a Simple Structured Artificial Muscle Using SMA Wire". United States. doi:10.1063/1.2204540.
@article{osti_20798669,
title = {Development of a Simple Structured Artificial Muscle Using SMA Wire},
author = {Ibuki, Ryuta and Maruyama, Shigenao and Komiya, Atsuki},
abstractNote = {Artificial heart muscle using SMA wire is developed to assist weaken heartbeat. Simple structure design was adopted for large output force, large displacement and rapid cyclic motion of the actuator. The actuator was designed and fabricated from the viewpoint of heat transfer. Moving performance of the actuator was experimentally measured under 10N of loading condition. Under the maximum efficiency condition, the actuator shows cyclic motion with 1mm of displacement and time period of about 2 seconds in one cycle.},
doi = {10.1063/1.2204540},
journal = {AIP Conference Proceedings},
number = 1,
volume = 832,
place = {United States},
year = {Fri May 05 00:00:00 EDT 2006},
month = {Fri May 05 00:00:00 EDT 2006}
}
  • This paper presents the results of a research program sponsored by the European Commission through project WIND-CHIME (Wide Range Non-INtrusive Devices toward Conservation of HIstorical Monuments in the MEditerranean Area), in which the possibility of using advanced seismic protection technologies to preserve historical monuments in the Mediterranean area is investigated. In the current research, two outstanding Egyptian Mamluk-Style minarets, are investigated. The first is the southern minaret of Al-Sultaniya (1340 A.D, 739 Hijri Date (H.D.)), the second is the minaret of Qusun minaret (1337 A.D, 736 H.D.), both located within the city of Cairo. Based on previous studies on themore » minarets by the authors, a seismic retrofit technique is proposed. The technique utilizes shape memory alloy (SMA) wires as dampers for the upper, more flexible, parts of the minarets in addition to vertical pre-stressing of the lower parts found to be prone to tensile cracking under ground excitation. The effectiveness of the proposed technique is numerically evaluated via nonlinear transient dynamic analyses. The results indicate the effectiveness of the technique in mitigating the seismic hazard, demonstrated by the effective reduction in stresses and in dynamic response.« less
  • The electrostriction of composites consisting of dielectric particles embedded in a gel or elastomer is discussed. It is shown that when these particles are organized by a uniaxial field before gelation, the resulting field-structured composites are expected to exhibit enhanced electrostriction in a uniform field applied along the same axis as the structuring field. The associated stresses might be large enough to form the basis of a polymer-based fast artificial muscle.
  • The electrostriction of composites consisting of dielectric particles embedded in a gel or elastomer is discussed. It is shown that when these particles are organized by a uniaxial field before gelation, the resulting {ital field-structured} composites are expected to exhibit enhanced electrostriction in a uniform field applied along the same axis as the structuring field. The associated stresses might be large enough to form the basis of a polymer-based fast artificial muscle. {copyright} {ital 1999 American Institute of Physics.}
  • The autosomal recessive proximal spinal muscular atrophy (SMA) gene was mapped to the region 5q11.2-q.13.3 in 1990. Here, the authors present a large genetic linkage study of 100 SMA families and 11 CEPH families using 14 polymorphic simple sequence repeats (SSRs) and one RFLP in the region 5q11.2-q.13.3. The genetic interval between the closest SMA flanking loci D5S435 and D5S557 comprises 1 cM at z[sub max] = 27.94. Two recombinants were identified between the SMA gene and the closest telomeric marker D5S557. The first places the SMA gene centromeric to this marker; the second suggests a double recombinant at D5S557,more » which is very unlikely. More likely explanations are discussed in the paper. No recombinant was found between D5S435 and the SMA gene. They localized a recently described polymorphic marker, D5S351, close to the SMA. Due to its high PIC value of 0.70, it represents a very useful marker for prenatal diagnosis. In addition, they developed a new reverse primer for the nearest centromeric locus D5S435, a useful marker for prenatal diagnosis, which has been very difficult to amplify in the past. Three of the markers presented here are newly developed polymorphic SSRs (one tetranucleotide repeat, D5s507/W15CATT, and two dinucleotide repeats, D5S544/C88.2GT and D5S682/C88.3GT). These markers are too far from the SMA gene to be relevant for cloning; nevertheless, as part of the human genome project, they are contributing to the fine genetic mapping of the region 5q11.2-q.13.3. The most likely order of the loci based on two-point and multipoint linkage analyses as well as on specific recombination events and physical mapping studies is D5S76-D5S507-D5S6-D5S125-D5S680-D5S435-SMA-D5S557-D5S35 -15[prime]MAP1B-3[prime]MAP1B-JK53CA1/2-(D5S127-D5S39)-(D5S544-D5S682). In general, the genetic distances obtained from the SMA and CEPH families are comparable. 25 refs., 4 figs., 5 tabs.« less