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公开(公告)号：KR101206044B1
公开(公告)日：2012-11-28
申请号：KR1020110009176
申请日：2011-01-31
Applicant: 한국과학기술원
Abstract: 본 발명은 층별로 가속도를 측정하고 측정된 가속도를 이용하여 간단하게 다층구조물의 층별 손상 정도를 평가할 수 있는 다층 구조물의 손상율 평가 방법을 제공하기 위한 것으로서, 탐지 대상이 되는 다층 구조물에 대하여 가속도계를 이용하여 복수 개의 층에서 일정시간 동안 가속도 신호를 측정하는 단계, 측정된 가속도 신호에 기초하여 복수 개의 층에 대한 모드유연도 행렬을 산출하는 단계, 산출된 모드유연도 행렬(Modal Flexibility Matrix)에 양전단력 유발 하중(Positive Shear Inspection Load)를 적용하여 상기 복수 개의 층 각각에 대한 모드유연도 기반 변위를 산출하는 단계, 서로 인접하는 상기 모드유연도 기반 변위와의 차이에 의해 상기 복수 개의 층 각각에 대해 층간 변위를 산출하는 단계, 상기 복수 개의 층 각각에 대하여 상기 모드유연도 기반 변위와 손상 전의 기준 모드유연도 기반 변위의 차이에 따른 층간 손상유발 변위(Damage-induced Inter-story Deflection)를 산출하는 단계 및 상기 복수 개의 층 각각에 대하여 층간 손상유발 변위의 층간 변위에 대한 비율로 층간 손상율을 산출하는 단계를 포함한다.
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公开(公告)号：KR1020120088088A
公开(公告)日：2012-08-08
申请号：KR1020110009176
申请日：2011-01-31
Applicant: 한국과학기술원
Abstract: PURPOSE: A method for evaluating a damage rate of a multi-story structure is provided to measure the acceleration per each story of a multi-story structure and to calculate damage-induced deflection with the acceleration per each story of a multi-story structure, thereby quantitively evaluating the damaged extent of each storey at a rate of damage-induced inter-story deflection and modal flexibility based deflection. CONSTITUTION: A method for evaluating a damage rate of a multi-story structure is as follows. Acceleration signals with respect to a multi-story structure are measured for predetermined time in several stories by using an accelerometer(S10). Modal flexibility matrixes with respect to several stories are calculated based on the measured acceleration signals(S20). Each modal flexibility based deflection of each story is calculated by applying a positive shear inspection load to a modal flexibility matrix(S30). Inter-story deflections of each story caused by a difference between the modal flexibility matrix deflections adjacent to each other are calculated(S40). Damaged-induced inter-story deflection of each stories caused by a difference between the modal flexibility based deflection and a reference modal flexibility based deflection are calculated(S50). An inter-story damage rate is calculated with a rate of the damaged-induced inter-story deflection with respect to the inter-story deflection per each story.
Abstract translation: 目的：提供一种评估多层结构损伤率的方法，以测量多层结构每个故事的加速度，并计算每层故事多层结构加速度的损伤引起的挠度， 从而以损伤诱导的层间偏转和基于模态柔性的偏转的速率定量评估每层的损伤程度。 构成：评估多层结构破坏率的方法如下。 通过使用加速度计，在几层故事中测量相对于多层结构的加速度信号（S10）。 基于所测量的加速度信号计算关于几个故事的模态灵活性矩阵（S20）。 通过对模态柔性矩阵应用正剪切检测载荷来计算每个故事的每个基于模态柔性的偏转（S30）。 计算由彼此相邻的模态灵活性矩阵偏差之间的差异引起的每个故事的故事间偏差（S40）。 计算由基于模态柔性的偏转与基于参考模态灵活性的偏转之间的差异导致的每个故事的损伤引起的故事间偏差（S50）。 层间破坏率是按每个故事相对于层间偏差的受损诱导的层间偏差的比率计算的。
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公开(公告)号：KR101209886B1
公开(公告)日：2012-12-10
申请号：KR1020110003925
申请日：2011-01-14
Applicant: 한국과학기술원
Abstract: 본발명은층별로가속도를측정하고측정된가속도를이용하여간단하게다층구조물의손상여부및 손상된부위를미리탐지할수 있는다층구조물의손상탐지방법을제공하기위한것으로서, 탐지대상이되는다층구조물에대하여가속도계를이용하여복수개의층에서일정시간동안가속도신호를측정하는단계, 측정된가속도신호에기초하여복수개의층에대한모드유연도행렬을산출하는단계, 산출된모드유연도행렬(Modal Flexibility Matrix)에양전단력유발하중(Positive Shear Inspection Load)를적용하여상기복수개의층 각각에대한모드유연도변위를산출하는단계및 상기복수개의층 각각에대하여상기모드유연도변위와손상전의기준모드유연도기반변위의차이에따른층간손상유발변위(Damage-induced Inter-story Deflection)를산출하고, 산출된층간손상유발변위와임계손상변위를비교하여, 상기층간손상유발변위가임계손상변위를초과하는지여부및 상기초과되는층 지점을탐지하는단계를포함한다.
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Patent Agency Ranking
公开(公告)号：KR1020140004857A
公开(公告)日：2014-01-14
申请号：KR1020120072060
申请日：2012-07-03
Applicant: 한국과학기술원
CPC classification number: F16L55/033 , F16L43/00
Abstract: The present invention relates to an elbow, and more specifically, to a soundproof elbow which prevents noise from the elbow by a vacuum space in a thick part of the elbow and installing a soundproof unit on both ends of the elbow. The soundproof elbow of the present invention includes the elbow, a vacuum unit, and the soundproof unit.
Abstract translation: 本发明涉及一种肘部，更具体地说，涉及一种隔音弯头，其能够通过肘部的较厚部分中的真空空间防止来自肘部的噪音，并在肘部的两端安装隔音单元。 本发明的隔音弯头包括弯头，真空单元和隔音单元。
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公开(公告)号：KR1020130085577A
公开(公告)日：2013-07-30
申请号：KR1020120006440
申请日：2012-01-20
Applicant: 한국과학기술원
IPC: F16L55/033 , F16L9/21 , F16L43/00
CPC classification number: F16L55/033 , F16L43/00 , F16L55/02754
Abstract: PURPOSE: An elbow pipe with an anti-noise member is provided to prevent fluid from being directly contacted to the inner surface of the elbow pipe by dispersing the fluid with an anti-noise member installed inside the elbow pipe, thereby preventing impact noise generated when the fluid impacts on the inner wall of the elbow pipe. CONSTITUTION: An elbow pipe (10) comprises an anti-noise member (100) and multiple through-holes (110). The anti-noise member is a conical funnel shape and is installed inside the elbow pipe. The top of the anti-noise member is positioned in an inlet pipe. The through-holes are formed along the outer circumference of the anti-noise member.
Abstract translation: 目的：提供具有防噪声构件的肘管，以通过将安装在肘管内的抗噪声构件分散流体来防止流体与弯管的内表面直接接触，从而防止流体在肘管内产生的冲击噪声 流体冲击肘管内壁。 构成：肘管（10）包括防噪声构件（100）和多个通孔（110）。 防噪声构件是锥形漏斗形状，并安装在弯管内。 防噪声构件的顶部位于入口管中。 通孔沿着抗噪声部件的外周形成。
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公开(公告)号：KR1020130077272A
公开(公告)日：2013-07-09
申请号：KR1020110145893
申请日：2011-12-29
Applicant: 한국과학기술원
IPC: F16L55/033 , F16L43/00 , F16L9/21
CPC classification number: F16L55/033 , F16L9/21 , F16L43/00
Abstract: PURPOSE: A vacuum noise preventing type elbow is provided to improve the efficiency of reducing noise by effectively blocking noise while preventing the degradation of the performance of the elbow even in long-term usage. CONSTITUTION: A vacuum noise preventing type elbow (EL) includes a vacuum unit (VA) which is formed into a hollow space of a vacuum state on an area of a thickness portion of an outer curved unit (OT) of the elbow. The transmission of noise generated inside the elbow is blocked by the vacuum unit. The vacuum unit is formed into a shape having a predetermined width lengthways along the curved surface of the outer curved unit. The vacuum unit is formed on a thickness portion of the outer curved unit.
Abstract translation: 目的：提供一种防止真空噪音的弯头，通过有效地阻挡噪声来提高降低噪音的效率，同时防止长期使用时弯头的性能下降。 构成：真空噪声防止型弯头（EL）包括真空单元（VA），该真空单元（VA）在弯头的外弯曲单元（OT）的厚度部分的区域上形成为真空状态的中空空间。 肘内产生的噪音传输被真空装置阻挡。 真空单元形成为沿着外弯曲单元的弯曲表面具有预定宽度的形状。 真空单元形成在外弯曲单元的厚度部分上。
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公开(公告)号：KR1020120082574A
公开(公告)日：2012-07-24
申请号：KR1020110003925
申请日：2011-01-14
Applicant: 한국과학기술원
Abstract: PURPOSE: A method for detecting damage of a multi-story structure is provided to measure acceleration per each story and to detect partial damages of the each story in advance by calculating a damage-induced inter-story deflection with a simple method. CONSTITUTION: A method for detecting damage of a multi-story structure is as follows. Acceleration signals are measured for the predetermined time in several stories of a measurement object multi-story structure by using an accelerometer(S10). Modal flexibility matrices with respect to the several stories based on the measured acceleration signals is calculated(S20). The positive shear inspection load is applied to the modal flexibility matrices so that modal flexibility base deflections with respect to each story are calculated(S30). A damage-induced inter-story deflection caused by a difference of a reference modal flexibility base deflection before being damaged and the modal flexibility base deflection with respect to each layer(S40). The calculated damage-induced inter-story deflection and a critical damage deflection are compared so that a point of the layer where the damage-induced inter-story deflection exceeds and whether the damage-induced inter-story deflection is exceeded or not are detected(S50).
Abstract translation: 目的：提供一种用于检测多层结构损伤的方法，以便通过简单的方法计算损伤引起的层间偏差，来预测每个故事的加速度，并预先检测每个故事的部分损伤。 构成：多层结构的损伤检测方法如下。 通过使用加速度计，在测量对象多层结构的几个故事中测量加速度信号的预定时间（S10）。 计算出相对于基于所测量的加速度信号的几个故事的模态灵活性矩阵（S20）。 将正剪切检测载荷应用于模态柔性矩阵，从而计算相对于每个故事的模态柔性基础偏移（S30）。 由损伤之前的参考模态柔性基础偏转和相对于每个层的模态柔性基础偏转引起的损伤引起的层间偏转（S40）。 比较计算的损伤引起的层间偏转和临界损伤偏转，以便检测损伤引起的层间偏转超过的层的一个点以及是否超过损伤引起的层间偏转。 S50）。
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