Development of Intelligent Wire Rope with Self-Diagnostic Function

具有自诊断功能的智能钢丝绳的研制

• 批准号: 14350534
• 负责人: HANASAKI Koichi
• 金额: $ 4.67万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14350534/
• 关键词: Wire Rope; Self-Diagnostic Function; Nondestructive Testing; Deterioration Diagnosis; Suspender Rope; Magnetic Testing; Non-Contact Ultrasonics; 資源開発

At the first stage of the development of intelligent-wire ropes having self-diagnosis function, we studied the feasibility of using electric cable layered inside steel wire rope as a monitoring element for the deterioration of wire rope. We carried out tensile test, bending fatigue test, and tensile fatigue test for several kind of electric cables, and steel wire ropes with the electric cables inside:1) Manufacturing conditions of electric cables, such as wire. diameter, pitch length, hardness of covering material, have strong influence to their tensile strength, deformability and fatigue strength.2) These facts indicated that we can easily select the strength of electric cables suitable for monitoring the deterioration of steel wires with the electric cable as diagnostic element.3) The variation in resistance of electric cables layered inside the steel wire rope corresponded well with the progress of rope deterioration.Relevant to the diagnosis of wire rope integrity, we also developed NDT method for suspender ropes in suspension bridges. We carried out the field test using the NDT system:4) Our magnetic NDT system can evaluate the corrosion of suspender ropes quantitatively continuously along the rope. The accuracy of the evaluation were confirmed by examination of retired suspender ropes5) Corrosion of suspender rope were not uniformly distributed along its length.6) Magnetostrictive non-contact generation and detection of ultrasonic wave can be used for the NDT of suspender ropes. And the degradation of end-attachment of suspender rope. can be evaluated from the attenuation of ultrasonic wave.

在开发具有自诊断功能的智能钢丝绳的第一阶段，我们研究了使用钢丝绳内分层的电缆作为钢丝绳劣化监测元件的可行性。我们对几种电缆和内有电缆的钢丝绳进行了拉伸试验、弯曲疲劳试验和拉伸疲劳试验：1）电线等电缆的制造条件。包覆材料的直径、节距、硬度等对其抗拉强度有较大影响，变形能力和疲劳强度。2）这些事实表明，以电缆为诊断元件，我们可以轻松选择适合监测钢丝劣化的电缆强度。3）钢丝绳内部电缆电阻的变化与钢丝绳的劣化过程有很好的对应关系，对于钢丝绳完整性的诊断，并发展了悬索桥吊索无损检测方法。4）磁性无损检测系统能够对吊索的腐蚀情况进行沿着连续的定量评价。通过对已退役吊索的检测，验证了评价的准确性。5）吊索的腐蚀沿长度沿着分布不均匀。6）超声波的磁致伸缩非接触产生和检测可用于吊索的无损检测。吊索端部附着力退化。可以从超声波的衰减来评估。

项目成果

塚田和彦, 浅井新輔, 守谷敏之, 角 和夫, 石井一知, 登 隆司: "磁歪超音波法による吊橋ハンガーロープ端末定着部の検査について"表面探傷技術による健全性診断に関するシンポジウム講演論文集. 107-112 (2004)

Kazuhiko Tsukada、Shinsuke Asai、Toshiyuki Moriya、Kazuo Kado、Kazutomo Ishii、Takashi Noboru：“利用磁致伸缩超声波法检查悬索桥吊绳末端锚具”利用表面探伤技术进行完整性诊断的研讨会论文集107 -112（2004年）。 ）

塚田和彦, 守谷敏之, 菅原公理, 小川和也, 前田善宏, 明石良男: "磁気検査にもとづく長大吊橋ハンガーロープの腐食度評価"表面探傷技術による健全性診断に関するシンポジウム講演論文集. 101-106 (2004)

Kazuhiko Tsukada、Toshiyuki Moriya、Akihiro Sukawara、Kazuya Okawa、Yoshihiro Maeda、Yoshio Akashi：“基于磁力检测的长悬索桥吊索腐蚀程度评估”表面探伤技术健康诊断研讨会论文集101。 -106（2004年）

K.Tsukada, T.Moriya, M.Sugawara, K.Ogawa, Y.Maeda, Y.Akashi: "Magnetic Nondestructive Evaluation of Corrosion in Suspender hopes in Suspension Bridges"Proc.of Symp.on Diagnosis of Structural Integrity by Surface NDT Method. 101-106 (2004)

K.Tsukada、T.Moriya、M.Sugara、K.Okawa、Y.Maeda、Y.Akashi：“悬索桥悬索腐蚀的磁性无损评估”Proc.of Symp.on Diagnosis of Structural Integrity by Surface NDT

K.Tsukada, S.Asai, T.Moriya, K.Sumi, K.Ishii, T.Nobori: "Magnetostrictive Ultrasonic NDT for End Attachment of Suspender Ropes in Suspension Bridges"Proc.of Symp.on Diagnosis of Structural Integrity by Surface NDT Method. 107-112 (2004)

K.Tsukada、S.Asai、T.Moriya、K.Sumi、K.Ishii、T.Nobori：“悬索桥悬索端部附件的磁致伸缩超声波无损检测”Proc.of Symp.on Diagnosis of Structural Integrity by Surface