JPH10317353A - Characteristic test method for fender - Google Patents
Characteristic test method for fenderInfo
- Publication number
- JPH10317353A JPH10317353A JP9131078A JP13107897A JPH10317353A JP H10317353 A JPH10317353 A JP H10317353A JP 9131078 A JP9131078 A JP 9131078A JP 13107897 A JP13107897 A JP 13107897A JP H10317353 A JPH10317353 A JP H10317353A
- Authority
- JP
- Japan
- Prior art keywords
- fender
- test
- test piece
- tensile
- characteristic curve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、船舶などの岸壁へ
の接岸時、および係留時に緩衝材として機能する防舷材
の、新規な特性試験方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a new method for testing characteristics of a fender functioning as a cushioning material when berthing to a quay of a ship or the like and when mooring.
【０００２】[0002]
【従来の技術】港湾の岸壁に船舶などを接岸する際、あ
るいは接岸した船舶などを岸壁に係留する際に緩衝材と
して機能する防舷材としては、種々のタイプのものが知
られているが、その中でもとくに、ゴム等の弾性材料に
よって形成された肉厚のソリッドタイプの防舷材が、構
造が簡単で壊れにくいために、広く一般に使用されてい
る。2. Description of the Related Art Various types of fenders are known as a fender that functions as a cushioning material when a ship or the like berths at a quay of a harbor or when a moored ship or the like is moored to the quay. Among them, in particular, a thick solid type fender made of an elastic material such as rubber is widely and generally used because its structure is simple and hard to break.
【０００３】たとえば弾性材料の新規な組成が、上記ソ
リッドタイプの防舷材に要求される安全基準を満たすか
否か、などを確認するために、従来は、製造した防舷材
を、常温で２〜８ｃｍ／ｍｉｎ程度の一定の圧縮速度で
圧縮した際の、圧縮量と反力との特性を求めて、その性
能を評価していた。[0003] For example, in order to confirm whether a new composition of an elastic material satisfies the safety standards required for the above-mentioned solid-type fenders, conventionally, manufactured fenders are subjected to room temperature. The characteristics of the amount of compression and the reaction force when compressed at a constant compression speed of about 2 to 8 cm / min were obtained, and the performance was evaluated.
【０００４】[0004]
【発明が解決しようとする課題】しかし、実際の防舷材
の使用条件は上記のように一定ではない。たとえば温度
は、地域やあるいは季節によって、およそ−３０〜＋６
０℃程度の範囲でばらつきがある。また船舶などの接岸
による防舷材の圧縮の速度も一定ではなく、およそ１０
〜３０ｃｍ／ｍｉｎ程度の範囲でばらつきを生じる。However, the actual use conditions of the fender are not constant as described above. For example, the temperature may be approximately -30 to +6 depending on the region or season.
There is variation in the range of about 0 ° C. In addition, the speed of compression of fenders due to berthing of ships is not constant,
Variation occurs in the range of about 30 cm / min.
【０００５】このため、より安全性の高い防舷材を設
計、製造するには、実際の使用条件に即した条件で試験
を行って、すなわち上記のような広い範囲で、測定時の
温度や圧縮速度などを種々変化させた際の、防舷材の反
力特性を求めて、防舷材の性能を評価するのが望まし
い。ところが実際の、高さが１ｍ程度もある巨大な、し
かも反力の大きな防舷材に対して上記の試験を行うの
は、試験機の性能が十分でないために困難である。[0005] For this reason, in order to design and manufacture a safer fender, a test is performed under conditions corresponding to actual use conditions, that is, the temperature and temperature at the time of measurement are measured in a wide range as described above. It is desirable to evaluate the performance of the fender by obtaining the reaction force characteristics of the fender when the compression speed and the like are variously changed. However, it is difficult to perform the above-described test on an actual large fender having a height of about 1 m and a large reaction force due to insufficient performance of the test machine.
【０００６】そこで、たとえば図５にみるように、実際
の防舷材と同じ弾性材料にて形成した、防舷材の、高さ
１０ｃｍ程度の模型９０を、圧縮試験機の固定盤９１と
可動盤９２との間に固定し、前記のように実際の使用に
即して温度、圧縮速度などの条件を種々変化させつつ、
図中白矢印で示すように可動盤９２を動作させて、模型
９０を圧縮試験して得られた反力特性から、実際の防舷
材の反力特性を比定している。For example, as shown in FIG. 5, a model 90 having a height of about 10 cm made of a fender made of the same elastic material as an actual fender is mounted on a fixed plate 91 of a compression tester and movable. It is fixed between the panel 92 and the temperature, the compression speed, and other conditions according to actual use as described above.
As shown by the white arrow in the drawing, the movable plate 92 is operated, and the reaction force characteristics of the actual fender are determined from the reaction force characteristics obtained by performing a compression test on the model 90.
【０００７】しかしこの場合には、模型を、実際の防舷
材とそっくりそのままの形状に、きわめて正確に縮尺し
なければならず、その製造に時間と手間とコストがかか
るという問題がある。本発明の目的は、より簡単、確実
かつ安価に、実際の防舷材の性能を比定しうる、新規な
防舷材の特性試験方法を提供することにある。However, in this case, there is a problem that the model must be very accurately reduced to the same shape as the actual fender, and it takes time, labor and cost to manufacture the model. SUMMARY OF THE INVENTION An object of the present invention is to provide a new method for testing the characteristics of a fender, which can more easily, reliably and inexpensively determine the performance of an actual fender.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するた
め、発明者らは、模型を用いた試験方法に代わる新たな
試験方法を求めて、種々検討を行った。その結果、防舷
材と同じ弾性材料にて形成した輪状の試験片を、一対の
引張部材間に架けわたした状態で引張試験して測定した
引張応力の、特定の試験条件の変化に対する特性曲線
が、実際の防舷材における、あるいは従来の、防舷材の
模型における、同じまたは同種の条件の変化に対する圧
縮時の反力の特性曲線とよく一致するため、防舷材の反
力特性を比定するのに有効であることを見いだし、本発
明を完成するに至った。Means for Solving the Problems In order to solve the above problems, the present inventors have conducted various studies in search of a new test method which can replace a test method using a model. As a result, the characteristic curve of the tensile stress measured by performing a tensile test on a ring-shaped test piece formed of the same elastic material as the fender while being stretched between a pair of tensile members, with respect to changes in specific test conditions However, since it is in good agreement with the characteristic curve of the reaction force at the time of compression of the same or similar conditions in the actual fender or the conventional model of the fender, the reaction characteristics of the fender are The inventors have found that it is effective to make a comparison, and have completed the present invention.
【０００９】すなわち本発明の防舷材の特性試験方法
は、弾性材料にて形成される防舷材の、圧縮時の反力
の、特定の条件の変化に対する特性を、同じ弾性材料に
て形成した輪状の試験片を一対の引張部材間に架けわた
した状態で引張試験した際の、上記と同じまたは同種の
試験条件の変化に対する引張応力の特性曲線から比定す
ることを特徴とするものである。That is, according to the method for testing the characteristics of a fender made of an elastic material, the characteristics of the fender made of an elastic material with respect to a change in a specific condition of a reaction force at the time of compression are formed of the same elastic material. When a tensile test is performed with a ring-shaped test piece stretched between a pair of tensile members, the characteristic is determined from a characteristic curve of tensile stress with respect to a change in the same or similar test conditions as described above. is there.
【００１０】上記構成からなる、本発明の特性試験方法
によれば、複雑な形状の模型などを使用することなく、
単なる輪状の試験片を、一対の引張部材間に架けわたし
た状態で引張試験するだけで、簡単、確実かつ安価に、
実際の防舷材の性能を比定することが可能となる。According to the characteristic test method of the present invention having the above configuration, without using a model having a complicated shape or the like,
A simple, reliable, and inexpensive test can be performed simply by stretching a simple ring-shaped specimen between a pair of tension members.
It is possible to compare the performance of the actual fender.
【００１１】[0011]
【発明の実施の形態】以下に本発明を、その実施のため
に用いる試験片、および試験装置の一例を示す図面を参
照しつつ説明する。まず図２(a)(b)にみるようにこの例
の試験片１は、その全体を、試験すべき防舷材と同じ弾
性材料により輪状に、詳しくは、一対の半円部１１、１
１間を、これと同じ幅と厚みを有する一対の直線部１
２、１２で繋いだ長円形の輪状に、一体形成することで
構成されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings showing an example of a test piece and a test apparatus used for carrying out the present invention. First, as shown in FIGS. 2 (a) and 2 (b), the test piece 1 of this example is entirely formed into a ring shape using the same elastic material as the fender to be tested.
1 between a pair of straight portions 1 having the same width and thickness.
It is constituted by being integrally formed in an oval ring shape connected by 2 and 12.
【００１２】試験片１の、上記各部の寸法（半円部１１
の半円の径、直線部１２の長さ、上記両部の幅、厚み）
はとくに限定されず、後述する試験装置の大きさなどに
あわせて、適宜の寸法に設定すればよい。上記の試験片
１は、たとえば弾性材料がゴムである場合、未加硫のゴ
ムに加硫剤などの各種添加剤を添加した、防舷材と同じ
組成のゴム組成物を、上記の形状、寸法に対応した型内
に仕込んで加硫することにより製造される。The dimensions (semicircular portion 11) of each part of the test piece 1
The diameter of the semicircle, the length of the straight portion 12, the width and thickness of both portions)
The size is not particularly limited, and may be set to an appropriate size according to the size of a test device described later. For example, when the elastic material is rubber, the test piece 1 is obtained by adding a rubber composition having the same composition as that of the fender, in which various additives such as a vulcanizing agent are added to unvulcanized rubber, in the above-described shape, It is manufactured by charging in a mold corresponding to the dimensions and vulcanizing.
【００１３】加硫に際しては、試験片１の引張応力の特
性曲線を、実際の防舷材の、圧縮時の反力の特性曲線と
よく一致させるべく、試験片１を構成するゴムの加硫度
が、防舷材を構成するゴムの加硫度と等しくなるように
加硫の条件を設定する、つまりゴムに対して等価の加硫
を行うのが望ましい。ただしゴムの加硫度と、引張応
力、反力との関係が明らかで、試験片１の引張応力の特
性曲線から、実際の防舷材の、圧縮時の反力の特性曲線
を容易に比定しうる場合にはこの限りでない。At the time of vulcanization, the rubber constituting the test piece 1 is vulcanized so that the characteristic curve of the tensile stress of the test piece 1 matches the characteristic curve of the reaction force at the time of compression of the actual fender. It is desirable to set the vulcanization conditions so that the degree of vulcanization is equal to the degree of vulcanization of the rubber constituting the fender, that is, to perform equivalent vulcanization on the rubber. However, the relationship between the degree of vulcanization of rubber, tensile stress and reaction force is clear. From the characteristic curve of the tensile stress of test piece 1, the characteristic curve of the reaction force of actual fenders during compression can be easily compared. This is not the case when it can be determined.
【００１４】つぎに、上記試験片１を引張試験するため
の、図１の試験装置について説明する。図の試験装置
は、試験片１を架けわたす引張部材としての一対の円形
のプーリ２１、２２をそれぞれ、連結部材３３、３４を
介して、引張試験機の固定盤３１と可動盤３２に連結す
ることで構成されている。Next, the test apparatus shown in FIG. 1 for performing a tensile test on the test piece 1 will be described. In the test apparatus shown in the figure, a pair of circular pulleys 21 and 22 as tension members for bridging the test piece 1 are connected to a fixed plate 31 and a movable plate 32 of a tensile tester via connecting members 33 and 34, respectively. It is composed of
【００１５】上記のうちプーリ２１、２２はともに、そ
の外径が、試験片１の、半円部１１、１１の内径と同寸
法に形成されており、図にみるようにその外周に当該半
円部１１、１１を接触させた状態で、試験片１が架けわ
たされる。また両プーリ２１、２２は、引張試験前の初
期状態において、架けわたされた試験片１に張力がかか
らないように、その中心間の距離が、試験片１の、直線
部１２の長さと同寸法に設定される。The pulleys 21 and 22 have the same outer diameter as the inner diameters of the semicircular portions 11 and 11 of the test piece 1. The test piece 1 is hung with the circular portions 11 and 11 in contact with each other. In the initial state before the tensile test, the distance between the centers of the pulleys 21 and 22 is the same as the length of the linear portion 12 of the test piece 1 so that no tension is applied to the stretched test piece 1. Is set to
【００１６】つぎにこの状態で、図中白矢印で示すよう
に可動盤３２を動作させて試験片１を引張試験すると、
その結果として、試験片１の、特定の伸びに対する引張
応力が測定される。この操作を、前述したように広い範
囲で、試験条件を種々変化させて繰り返すことにより、
引張応力の特性曲線が求められる。Next, in this state, when the movable platen 32 is operated as shown by a white arrow in the figure and the test piece 1 is subjected to a tensile test,
As a result, the tensile stress of the test piece 1 for a specific elongation is measured. This operation is repeated by changing the test conditions in a wide range as described above,
A characteristic curve of the tensile stress is determined.
【００１７】かかる特性曲線は、前記のように実際の防
舷材における、あるいは従来の、防舷材の模型におけ
る、同じまたは同種の条件の変化に対する圧縮時の反力
の特性曲線とよく一致する。すなわち後述する実施例の
結果より明らかなように、試験片１の、引張試験時の温
度の変化に対する引張応力の特性曲線は、防舷材または
その模型の、温度の変化に対する反力の特性とよく一致
し、また引張試験時の引張速度の変化に対する引張応力
の特性曲線は、防舷材の、圧縮速度の変化に対する反力
の特性とよく一致する。Such a characteristic curve, as described above, is in good agreement with the characteristic curve of the reaction force of the actual fender or of a conventional model of the fender under compression with respect to changes in the same or similar conditions. . That is, as is clear from the results of the examples described later, the characteristic curve of the tensile stress with respect to the temperature change at the time of the tensile test of the test piece 1 is the same as the reaction force characteristic with respect to the temperature change of the fender or its model. The characteristic curve of the tensile stress with respect to the change in the tensile speed during the tensile test matches well with the characteristic of the reaction force of the fender with respect to the change in the compression speed.
【００１８】したがって上記試験片１の、引張応力の特
性曲線を測定すれば、防舷材の反力特性を比定すること
ができる。なお図の例では、前述したように試験片１は
長円形の輪状であったが、これは円形であっても、ある
いはその他の形状であってもよい。またその場合には、
試験装置の引張部材を、前記のように引張試験前の初期
状態において、架けわたした試験片に張力がかからない
形状および配置とするのが望ましい。Therefore, if the characteristic curve of the tensile stress of the test piece 1 is measured, the reaction force characteristic of the fender can be determined. In the example shown in the figure, the test piece 1 has an oval ring shape as described above, but this may be a circular shape or another shape. In that case,
As described above, it is desirable that the tension member of the test apparatus has a shape and an arrangement in which no tension is applied to the bridged test piece in the initial state before the tensile test.
【００１９】たとえば試験片を円形の輪状とした場合に
は、一対の引っ張り部材をそれぞれ半円形として、引張
試験前の初期状態において、半円の弦同士が当接するよ
うに配置するのが好ましい。For example, when the test piece is formed in a circular ring shape, it is preferable that the pair of pulling members are each formed in a semicircular shape so that the semicircular chords abut against each other in an initial state before the tensile test.
【００２０】[0020]
実施例 〈試験片の作製〉実際の防舷材に使用したのと同じ未加
硫のゴム組成物を、試験片の形状、寸法に対応した８個
取りの型（縦３００ｍｍ、横３００ｍｍ、厚み５０ｍ
ｍ）内に仕込み、防舷材の加硫と等価の条件で加硫し
て、図２(a)(b)に示す形状を有し、半円部１１の内径が
１０ｍｍ、直線部１２の長さが５０ｍｍ、上記両部の幅
が５ｍｍで、かつ両部の厚みが２ｍｍの、長円形の輪状
の試験片１を８個、作製した。 〈引張試験〉図１に示す構造を有し、引張部材としての
一対のプーリ２１、２２の外径が、試験片１の、半円部
１１の内径と同じ１０ｍｍで、かつプーリ２１、２２の
中心間の距離が、引張試験前の初期状態において、試験
片１の、直線部１２の長さと同じ５０ｍｍに設定された
試験装置の、上記一対のプーリ２１、２２間に、前項で
作製した試験片１を、プーリ２１、２２の外周に半円部
１１、１１を接触させた状態で架けわたした。Example <Preparation of test piece> The same unvulcanized rubber composition as used in the actual fenders was molded into an eight-piece mold (300 mm long, 300 mm wide, and thickness corresponding to the shape and size of the test piece). 50m
m), and vulcanized under the same conditions as the vulcanization of the fender, having the shape shown in FIGS. 2 (a) and 2 (b). Eight elliptical ring-shaped test pieces 1 having a length of 50 mm, a width of both portions of 5 mm, and a thickness of both portions of 2 mm were prepared. <Tension Test> The pulleys 21 and 22 having the structure shown in FIG. 1 have a pair of pulleys 21 and 22 each having an outer diameter of 10 mm, which is the same as the inner diameter of the semicircular portion 11 of the test piece 1. In the initial state before the tensile test, the test prepared in the preceding paragraph between the pair of pulleys 21 and 22 of the test apparatus in which the test piece 1 is set to the same length of 50 mm as the length of the linear portion 12 of the test piece 1 The piece 1 was hung with the semicircular portions 11 and 11 in contact with the outer peripheries of the pulleys 21 and 22.
【００２１】つぎに、上記試験装置の可動盤３２を図中
白矢印で示すように動作させて引張試験を行い、試験片
１の、３０％の伸びに対する引張応力を測定した。上記
の測定を、温度を−３０℃から＋６０℃まで、１０℃ず
つ変化させて繰り返し行って、＋２０℃における引張応
力を１としたときの、各温度における引張応力比を図３
に＋印で示す。Next, the movable plate 32 of the test apparatus was operated as indicated by a white arrow in the figure to perform a tensile test, and the tensile stress of the test piece 1 with respect to 30% elongation was measured. The above measurement was repeated while changing the temperature from −30 ° C. to + 60 ° C. in steps of 10 ° C., and the tensile stress ratio at each temperature when the tensile stress at + 20 ° C. was set to 1 is shown in FIG.
Is indicated by a + sign.
【００２２】また上記の測定を、引張速度を０．１０％
／sec.（１秒間あたりの試験片の伸び量）から１００％
／sec.まで数段階で変化させて繰り返し行って、引張速
度１．０％／sec.における引張応力を１としたときの、
各引張速度における引張応力比を図４に×印で示す。 従来例 〈防舷材の模型の作製〉実際の防舷材に使用したのと同
じ未加硫のゴム組成物を、模型の形状、寸法に対応した
型内に仕込み、防舷材の加硫と等価の条件で加硫して、
図５に示す形状を有し、全体の高さｈが１０ｃｍ、脚部
９０ａの厚みｔが２５ｍｍの、防舷材の模型９０を作製
した。 〈圧縮試験〉前項で作製した防舷材の模型９０を、図５
に示すように、圧縮試験機の固定盤９１と可動盤９２と
の間に固定した。詳しくは、防舷材の模型９０の、両脚
部９０ａの先端（図において下端）をそれぞれ、図示し
ないボルトによって可動盤９２に固定した。In the above measurement, the tensile speed was set to 0.10%
/ Sec. (Elongation of test piece per second) to 100%
/ Sec. Is repeated in several steps until the tensile stress at a tensile speed of 1.0% / sec.
The ratio of the tensile stress at each tensile speed is shown by a cross in FIG. Conventional example <Preparation of fender model> The same unvulcanized rubber composition used for the actual fender was charged into a mold corresponding to the shape and dimensions of the model, and the fender was vulcanized. Vulcanized under the same conditions as
A fender model 90 having the shape shown in FIG. 5 and having an overall height h of 10 cm and a thickness t of the leg 90 a of 25 mm was produced. <Compression test> The model 90 of the fender prepared in the preceding section was
As shown in (1), the compression tester was fixed between a fixed plate 91 and a movable plate 92. More specifically, the tips (bottom ends in the figure) of both legs 90a of the model 90 of the fender were fixed to the movable platen 92 by bolts (not shown).
【００２３】つぎに、上記圧縮試験機の可動盤９２を図
中白矢印で示すように動作させて圧縮試験を行い、模型
９０の、５２．５％の圧縮に対する反力を測定した。上
記の測定を、温度を−３０℃から＋６０℃まで、１０℃
ずつ変化させて繰り返し行って、＋２０℃における反力
を１としたときの、各温度における反力比を図３に□印
で示す。Next, a compression test was performed by operating the movable platen 92 of the compression tester as shown by the white arrow in the figure, and the reaction force of the model 90 against 52.5% compression was measured. The above measurement was performed at a temperature of -10C from -30C to + 60C.
The reaction force ratio at each temperature, when the reaction force at + 20 ° C. was set to 1 by repeatedly changing the reaction force at each temperature, is indicated by a square in FIG.
【００２４】また上記の測定を、圧縮速度を０．１０％
／sec.（１秒間あたりの模型の圧縮量）から１００％／
sec.まで数段階で変化させて繰り返し行って、圧縮速度
１．０％／sec.における反力を１としたときの、各圧縮
速度における反力比を図４に○印で示す。 結果 上記図３および図４にみるように、実施例における輪状
の試験片の引張応力の特性曲線は、従来例である防舷材
の模型の反力の特性曲線とほぼ一致しており、このこと
から本発明の防舷材の特性試験方法によれば、従来の模
型を用いた方法に比べてより簡単、確実かつ安価に、実
際の防舷材の性能を比定できることが確認された。In the above measurement, the compression rate was set to 0.10%
/ Sec. (Amount of compression of the model per second) to 100% /
The reaction force ratio at each compression speed when the reaction force at a compression speed of 1.0% / sec. is set to 1 by repeatedly performing the process in several steps up to sec. Results As shown in FIGS. 3 and 4 above, the characteristic curve of the tensile stress of the ring-shaped test piece in the example almost coincides with the characteristic curve of the reaction force of the model of the conventional fender. From this, it was confirmed that according to the method for testing the characteristics of the fender according to the present invention, the performance of the actual fender can be more easily, reliably, and inexpensively compared to the method using the conventional model.
【００２５】[0025]
【発明の効果】以上、詳述したように本発明によれば、
複雑な形状の模型などを使用することなく、単なる輪状
の試験片を、一対の引張部材間に架けわたした状態で引
張試験するだけで、簡単、確実かつ安価に、実際の防舷
材の性能を比定できるという特有の作用効果を奏する。As described in detail above, according to the present invention,
Simple, reliable, and inexpensive performance of actual fenders by simply performing a tensile test with a ring-shaped test piece stretched between a pair of tensile members without using a model with a complicated shape, etc. Has a specific effect of being able to determine.
【図１】本発明の、防舷材の特性試験方法を実施するた
めの、試験装置の一例を示す図である。FIG. 1 is a diagram showing an example of a test apparatus for performing a method for testing the characteristics of a fender according to the present invention.
【図２】上記試験装置に用いる試験片の一例を示す図で
あって、同図(a) は正面図、同図(b) は側面図である。FIGS. 2A and 2B are diagrams showing an example of a test piece used in the test apparatus, wherein FIG. 2A is a front view and FIG. 2B is a side view.
【図３】本発明の実施例において求められた、温度の変
化に対する引張応力比の特性曲線と、防舷材の模型を用
いた従来例において求められた、温度の変化に対する反
力比の特性曲線とを示すグラフである。FIG. 3 shows a characteristic curve of a tensile stress ratio with respect to a change in temperature obtained in the embodiment of the present invention, and a characteristic of a reaction force ratio with respect to a change in temperature obtained in a conventional example using a model of a fender. It is a graph which shows a curve.
【図４】本発明の実施例において求められた、引張速度
の変化に対する引張応力比の特性曲線と、上記従来例に
おいて求められた、圧縮速度の変化に対する反力比の特
性曲線とを示すグラフである。FIG. 4 is a graph showing a characteristic curve of a tensile stress ratio with respect to a change in tensile speed obtained in an example of the present invention and a characteristic curve of a reaction force ratio with respect to a change in compression speed obtained in the conventional example. It is.
【図５】従来の、防舷材の模型を用いた反力特性の測定
方法の一例を示す図である。FIG. 5 is a diagram showing an example of a conventional method for measuring reaction force characteristics using a model of a fender.
１ 試験片 ２１、２２ 引張部材 1 Test pieces 21, 22 Tensile members
Claims (3)
の反力の、特定の条件の変化に対する特性を、同じ弾性
材料にて形成した輪状の試験片を一対の引張部材間に架
けわたした状態で引張試験した際の、上記と同じまたは
同種の試験条件の変化に対する引張応力の特性曲線から
比定することを特徴とする防舷材の特性試験方法。The characteristics of a fender made of an elastic material with respect to a change in a specific condition of a reaction force at the time of compression are measured by using a ring-shaped test piece made of the same elastic material between a pair of tension members. A characteristic test method for a fender, characterized in that the characteristic is determined from a characteristic curve of a tensile stress with respect to a change in the same or similar test conditions as described above when a tensile test is carried out in a state where the fender is stretched.
に対する引張応力の特性曲線から、防舷材の、温度の変
化に対する反力の特性を比定する請求項１記載の防舷材
の特性試験方法。2. The fender according to claim 1, wherein the characteristic of the reaction force of the fender against the temperature change is determined from the characteristic curve of the tensile stress with respect to the temperature change in the tensile test of the ring-shaped test piece. Material property test method.
変化に対する引張応力の特性曲線から、防舷材の、圧縮
速度の変化に対する反力の特性を比定する請求項１記載
の防舷材の特性試験方法。3. The method according to claim 1, wherein the characteristic of the reaction force of the fender against the change of the compression speed is determined from the characteristic curve of the tensile stress of the ring-shaped test piece with respect to the change of the tensile speed during the tensile test. Test method for fender characteristics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9131078A JPH10317353A (en) | 1997-05-21 | 1997-05-21 | Characteristic test method for fender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9131078A JPH10317353A (en) | 1997-05-21 | 1997-05-21 | Characteristic test method for fender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10317353A true JPH10317353A (en) | 1998-12-02 |
Family
ID=15049481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9131078A Pending JPH10317353A (en) | 1997-05-21 | 1997-05-21 | Characteristic test method for fender |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10317353A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014641A (en) * | 2008-07-07 | 2010-01-21 | Bridgestone Corp | Rubber tensile testing method and test strip used for the same |
| CN105928761A (en) * | 2016-06-28 | 2016-09-07 | 华南理工大学 | Uniaxial tensile test measurement method for water gel material based on test piece in shape of Chinese character HUI |
| CN109506888A (en) * | 2019-01-03 | 2019-03-22 | 上海交通大学 | Surging fender simulator for the test of floating support mounting water pool model |
| CN114279871A (en) * | 2021-12-22 | 2022-04-05 | 江苏安锦橡胶有限公司 | A strength test device for rubber fender |
-
1997
- 1997-05-21 JP JP9131078A patent/JPH10317353A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010014641A (en) * | 2008-07-07 | 2010-01-21 | Bridgestone Corp | Rubber tensile testing method and test strip used for the same |
| CN105928761A (en) * | 2016-06-28 | 2016-09-07 | 华南理工大学 | Uniaxial tensile test measurement method for water gel material based on test piece in shape of Chinese character HUI |
| CN109506888A (en) * | 2019-01-03 | 2019-03-22 | 上海交通大学 | Surging fender simulator for the test of floating support mounting water pool model |
| CN109506888B (en) * | 2019-01-03 | 2024-04-26 | 上海交通大学 | A heave fender analogue means for floating support installation pond model test |
| CN114279871A (en) * | 2021-12-22 | 2022-04-05 | 江苏安锦橡胶有限公司 | A strength test device for rubber fender |
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