Transactions of Japan Society of Spring Engineers最新文献

Torque Characteristics of Spiral Spring Made of Ti-Ni Superelastic Alloy Wires 钛镍超弹性合金丝制螺旋弹簧的转矩特性

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.1

Hitoo TOKUNAGA, Toshiki FUTAWATARI, So WATANABE

{"title":"Torque Characteristics of Spiral Spring Made of Ti-Ni Superelastic Alloy Wires","authors":"Hitoo TOKUNAGA, Toshiki FUTAWATARI, So WATANABE","doi":"10.5346/trbane.2023.1","DOIUrl":"https://doi.org/10.5346/trbane.2023.1","url":null,"abstract":"The objective of this study is to develop a new spiral spring that exhibits unique deformation behavior. The properties of the spiral spring make it suitable for use not only as an energy storage element but also as an actuator or similar device. In the present study, a process for manufacturing a spiral spring made of Ti-Ni superelastic alloy wires was proposed. In addition, torque characteristics of the manufactured spiral spring were investigated by torque measurement tests. Rotational torque during wind and rewind processes at a constant rotational speed was monitored. In addition, torque measurement tests were repeated to investigate the effect of the number of wind and rewind processes on the torque characteristics. Two main results were obtained. First, the torque characteristics of the spiral spring show torque plateau behaviors, which are expected to produce a constant energy output. Second, the torque characteristic depends on the number of torque measurement tests. Torque values decrease with increasing number of repeated tests. These results for the spiral spring correspond to the superelastic behavior of the Ti-Ni alloy.","PeriodicalId":498557,"journal":{"name":"Transactions of Japan Society of Spring Engineers","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135950483","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

弁ばね材の焼入れとオイルテンパーによって生成する集合組織観察通过瓣膜材料的淬火和油轮生成的聚合组织观察

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.29

Ryuji ENOSHITA, Mitsuo NOTOMI

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減衰系に取り付ける並列型二重動吸振器の準最適数値解安装在衰减系统上的并联型双动吸振器的次最佳数值解

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.57

Toshihiko Asami

{"title":"減衰系に取り付ける並列型二重動吸振器の準最適数値解","authors":"Toshihiko Asami","doi":"10.5346/trbane.2023.57","DOIUrl":"https://doi.org/10.5346/trbane.2023.57","url":null,"abstract":"Multiplexing dynamic vibration absorber (DVA) provide better vibration control force compared to classical single-mass DVA. In fact, previous studies have shown that the vibration suppression performance of double-mass DVAs is superior to that of the single-mass DVA. In the optimal design of a parallel-type double-mass DVA, five dimensionless design parameters must be optimized. One of them is the mass ratio of two DVAs arranged in parallel. However, in many cases, especially in the parallel-type, the mass ratio of two DVAs cannot be set to the optimal value, because existing structures and machine parts are often used as DVA. This article investigates how the optimal values of other design parameters vary when the two DVA masses are set equal, and finally, how much the vibration suppression performance of the DVA deteriorates. The results of this study revealed that the performance degradation of the DVA was slight, and that few practical problems would arise. However, since this approximation reduces the number of parameters for the DVA from five to four, we had hoped the an algebraic solution rather than a numerical solution could be derived, but this was not possible.","PeriodicalId":498557,"journal":{"name":"Transactions of Japan Society of Spring Engineers","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135951114","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

巻フィルムチューブ式SMA人工筋肉アクチュエータ (SMA長方形断面素線コイルばね) SMA人造肌肉致动器(SMA长方形横截面螺旋弹簧)

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.77

Toshiya ISHIKAWA

引用次数: 0

高クロム鋼改良9Cr-1Moの供用中クリープ余寿命予測方法高铬钢改良9cr - 1mo的使用中蠕变寿命预测方法

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.91

Yuji NAKASONE

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板状Cu-Al-Mn形状記憶合金素子の座屈特性に及ぼす繰返し座屈変形の影響重复座屈变形对板状Cu-Al-Mn形状记忆合金元件的座屈特性的影响

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.21

Kyoya KAWAHARA, Yuki DOI, Hiroki CHO, Takumi SASAKI

{"title":"板状Cu-Al-Mn形状記憶合金素子の座屈特性に及ぼす繰返し座屈変形の影響","authors":"Kyoya KAWAHARA, Yuki DOI, Hiroki CHO, Takumi SASAKI","doi":"10.5346/trbane.2023.21","DOIUrl":"https://doi.org/10.5346/trbane.2023.21","url":null,"abstract":"The shape memory alloy (SMA) element that shows superelastic behavior exbibits negative stiffness during post-buckling deformation. Buckling deformation recover during unloading due to the shape memory effect. Thus, the negative stiffness region can be used continuously by the buckling of the shape memory alloy. The continuous availability of a negative stiffness region makes it possible to fabricate a passive vibration isolation mechanism with a quasi-zero stiffness structure composed of the combination of SMA elements and regular spring. Therefore, we devised and fabricated the passive vibration isolator using tape-shaped Ti-Ni SMA elements, and this isolator shows the excellent vibration characteristic. However, the physical properties of the Ti-Ni alloy strongly depend on the environmental temperature, which makes the operating temperature range of this vibration isolator very narrow. In this study, we focused on Cu-Al-Mn SMA with lower temperature dependence than Ti-Ni SMA and investigated their buckling characteristics and fatigue characteristics to evaluate their performance as vibration isolators. From the experimental results, it is considered that Cu-Al-Mn SMA exhibits favorable vibration-isolation properties over a wide environmental temperature range because of its smaller temperature dependence of buckling property and smaller stress hysteresis compared to Ti-Ni SMA. However, Cu-Al-Mn SMA has tendency of rapid decrease in reaction force after tens of thousands of cycles of buckling deformation fracturing shortly thereafter. This fracture was caused by intergranular fracture at the position where tensile stress is applied due to buckling deformation.","PeriodicalId":498557,"journal":{"name":"Transactions of Japan Society of Spring Engineers","volume":"314 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135951112","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Evaluation of Delayed Fracture Properties of Hydrogenated Surface Hardened JIS SCM420H 氢化表面硬化的JIS SCM420H延迟断裂性能评价

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.7

Shin UEDA, Lei HE, Takamoto ITOH

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Analysis on Large Deformation in a Slender Beam subjected to Eccentric Compressive Load (In Case of a Slender Beam with Non-Rotation Fixed Supports) 偏心压缩荷载作用下细长梁的大变形分析(非旋转固定支承细长梁)

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.49

Atsumi OHTSUKI, Isao AOKI

{"title":"Analysis on Large Deformation in a Slender Beam subjected to Eccentric Compressive Load (In Case of a Slender Beam with Non-Rotation Fixed Supports)","authors":"Atsumi OHTSUKI, Isao AOKI","doi":"10.5346/trbane.2023.49","DOIUrl":"https://doi.org/10.5346/trbane.2023.49","url":null,"abstract":"The large deformation behavior of flexible thin wires when subjected to axial compressive load has already been analyzed and applied to Young’s modulus measuring method for thin wires. However, from the viewpoint of material testing, it is necessary to analyze the effect of offset compression on Young’s modulus measurement. Therefore, this paper deals with a nonlinear analysis on large deformation when axial compression is applied to an offset beam fixed at both ends. Using the elliptic integral, analytical solutions of relations among arc length s, horizontal distance ξ, deflection η, curvature 1/R, bending moment M and bending stress σ, etc. were derived. Furthermore, the large deformation state was theoretically calculated using the analytical theory, and the effect of the offset amount on the buckling load was clarified. In addition, in order to confirm the effectiveness of the analytical theory, a large deformation experiment using a PVC (polyvinyl chloride) thin plate beam was carried out. As a result, the analytical theory' prediction and the large deformation experiment result were in good agreement. On the other hand, some typical deformation states are represented graphically so that the large deformation can be easily understood visually. In this paper, the offset beam is defined as the condition where both fulcrums are not on the same straight line.","PeriodicalId":498557,"journal":{"name":"Transactions of Japan Society of Spring Engineers","volume":"357 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135950480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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超音波ショットピーニングによる傾斜機能TiNi形状記憶合金の機能特性の改善超声波剪切的倾斜功能，改善TiNi形状记忆合金的功能特性

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.99

Ryosuke MATSUI, Takashi MIYAMOTO, Yuta HAMAKAWA, Kanehisa HATTORI

{"title":"超音波ショットピーニングによる傾斜機能TiNi形状記憶合金の機能特性の改善","authors":"Ryosuke MATSUI, Takashi MIYAMOTO, Yuta HAMAKAWA, Kanehisa HATTORI","doi":"10.5346/trbane.2023.99","DOIUrl":"https://doi.org/10.5346/trbane.2023.99","url":null,"abstract":"In this study, the authors proposed a functionally-graded TiNi shape memory alloy to expand the application range of TiNi shape memory alloys. The manufacturing process of the functionally-graded TiNi shape memory alloy consists of powder metallurgy, hot rolling, and ultrasonic shot peening. The effects of the hot rolling and the ultrasonic shot peening on various properties were clarified. The main results obtained in this study are as follows: (1) Vickers hardness is increased by the hot rolling and the ultrasonic shot peening. The main causes of this phenomenon are consolidation of hot rolling and work hardening effect in the ultrasonic shot peening. (2) The ultrasonic shot peening introduces compressive residual stress of up to 300 MPa in the surface layer of the sintered material. (3) Each peak obtained by differential scanning calorimetry shifts to lower temperatures side with increasing Ni composition. This is consistent with the well-known trend in a general TiNi shape memory alloy. Furthermore, the ultrasonic shot peening hardly changes this trend. In other words, the ultrasonic shot peening has almost no effect on the transformation properties of the TiNi shape memory alloy. (4) The ultrasonic shot peening work-hardens the hot-rolled sintered TiNi shape memory alloy. The effect is higher especially in the Ni-rich region, and as a result, the functionally-graded property of the deformation resistance becomes clearly visible.","PeriodicalId":498557,"journal":{"name":"Transactions of Japan Society of Spring Engineers","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135950482","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Development of Thick Copper Covered Wire 粗铜包线的研制

Transactions of Japan Society of Spring Engineers Pub Date : 2023-03-31 DOI: 10.5346/trbane.2023.17

Kenta MATSUOKA, Akihito HOSHIMA, Hiromu IZUMIDA, Mitsuhiro KIMURA

引用次数: 0