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粘滞阻尼器翻译:中英文对照

发布时间:2011-06-25 21:54:47
 

粘滞阻尼器翻译:中英文对照

Viscous Damper

概述 Brief Introduction:

传统的结构抗(振)震是通过增强结构本身的抗(振)震性能(强度、刚度、延性)来抵御地震、风、雪、海啸等自然灾害的。由于自然灾害作用强度和特性的不确定性,传统的抗(振)震方法设计的结构又不具备自我调节能力,因此当地震来临,往往会造成重大的经济损失和人员伤亡。

Traditional structural seismic resistance is to resist natural disasters such as earthquake, wind, snow and tsunami etc by strengthening earthquake resistant behavior (intensity, stiffness, ductility) of structure itself. Due to uncertainty of natural calamities strength and feature, the structure devised by traditional quake-proof method does not have self adjusting ability. Therefore, it tends to result in grave economic losses and casualties as earthquake is forthcoming.  

粘滞阻尼器的研发和应用,等于给建筑或桥梁装上了“安全气囊”。在地震来临时,阻尼器最大限度吸收和消耗了地震对建筑结构的冲击能量,大大缓解了地震对建筑结构造成的冲击和破坏。

Development and application of viscous dampers equals to erect “Safety Air-bag” on buildings or bridges. When earthquake is approaching, dampers furthest absorb and consume impact energy of earthquake to building structure, alleviating greatly impact and destruction of earthquake to building structure.

JZN系列粘滞阻尼器,是应用粘性介质和阻尼器结构部件的相互作用产生阻尼力的原理设计、制作的一种被动速度相关型阻尼器。使用的介质为硅油。该介质具有粘温系数小、极低和极高温度下(-50℃~+250℃)性能稳定,抗辐射性能较好。同时它具有优良的电气绝缘性能和优良的抗臭氧、耐电晕、憎水防潮性能。

JZN series viscous dampers are passive velocity-dependent ones devised and manufactured based on the principle that interaction between viscous media and structural components of dampers are applied to generate damping force. Medium used is silicone oil. Such medium has the following features: small viscosity-temperature coefficient, stable performance at over low and high temperatures (-50 ℃ ~ +250 ℃), greater radiance resistant performance. Meanwhile, the medium has excellent electric insulating property and great ozone resistant, corona resistant, water-repellent and moisture resistant performance. 

我公司根据JG/T209-2007 “建筑消能阻尼器”的有关要求,在消化吸收国内外同类产品的基础上,自主研制、开发了JZN系列粘滞阻尼器,拥有自主专利,并且通过第三方权威试验机构的鉴定,产品的各项性能指标达到国内外同类产品的技术水平。

In the light of relevant requirements in JG/T209-2007 “Dampers for Vibration Energy Dissipation of Buildings”, our company independently developed and produced JZN series viscous dampers on the basis of digesting and absorbing congeneric products home and abroad, owning its own patent. Additionally, by appraisal of third-party authority, each performance index of the product reaches technological level of congeneric products home and abroad.

粘滞阻尼器的应用:Application of Viscous Damper

作为20世纪结构工程界结构减振系统成果之一的粘滞耗能阻尼器,近几十年来在建筑(包括桥梁)领域得以广泛的应用。粘滞耗能阻尼器的广泛应用不仅大大提高了结构的抗风抗震能力,而且与传统的结构抗震设计方法相比,节约了相当比例的成本。其应用领域包括:

高层建筑、桥梁、军工、核电、火电、石化、钢铁等行业管道和阀门。

Viscous energy dissipation damper consuming energy, as one of the great achievements of vibration reducing system in the 20th century in structural engineering industry, has been widely applied to architectural (including bridges) field for dozens of years. Its widespread application not only greatly improves wind resistant and quake-proof capacity of structure, but saves fairly high proportion of costs when compared with traditional anti-seismic design method. Application fields cover: pipelines and valves in such industries as high-rise buildings, bridges, military project, nuclear power, heat power, petrifaction and steel etc.

粘滞阻尼器的特点:Features of Viscous Damper: 

1.位移指示清晰明了,方便判断活塞在油缸中的位置;Clear displacement instruction is easily to judge the location of piston in hydro-cylinder;

2.外形简洁,结构对称、紧凑,安装便捷,安装空间小;Simple appearance, symmetrical and compact structure, easy installation and small installation space;

3.低速运动下的阻力小,不超过额定载荷的10%;Small resistance at a low speed of motion, less than 10% of rated load;

4.阻尼器的长度设计了±25mm的调节量,方便现场的安装。±25mm regulating variable is designed in the length of damper for purpose of easy installation in site;

5.耗能效率高,达到90%以上。High energy consuming efficiency up to over 90%;

6.阻尼器两端均装有关节轴承,利于施工安装和工作时的摆动(允许工作摆角±6°);Oscillating bearings are installed on both ends of damper, favorable for installing under construction and swing as operating (±6°operating pendular angle allowable);

7.液压介质使用稳定、抗燃、耐老化的硅油;密封件使用与介质相容性好的橡胶材料。Hydraulic medium uses stable, burning and aging resistant silicone oil; sealing element uses rubber materials having great compatibility with medium.  

 

表示方法:

阻尼器型式代码:基本型略;加长为W

表示阻尼器的行程,mm

表示阻尼器额定载荷,kN

表示液压粘滞阻尼器

Representation of Damper:

                       Model code: basic type omitted; length-extended is W;

                       Stroke: in mm;

                       Rated Load: in kN

                      Hydraulic Viscous Damper

标记示例:JZN500×±150-W

Example in Sign: JZN500×±150-W

表示:加长型粘滞阻尼器,额定载荷为500kN,行程为±150mm

Indication: length-extended viscous damper, rated load 500kN, stroke ±150mm.

主要尺寸和技术参数:Major Dimensions and Technical Parameters:

原理公式为:F=C×Vα

F :阻尼力(kN)

C :阻尼系数(kN/(mm/s) )

V :活塞运动的速度(mm/s)

α:速度指数,根据工程要求进行设计选定,一般在0.2~1之间取值。当α=1时,则为线性阻尼。

Principle formula: F = C × Vα

F: Damping force (kN)

C: Damping coefficient (kN / (mm / s)) 

V: Velocity of piston (mm/s)

α:velocity exponent, designed and selected according to the engineering requirements, value is generally taken between 0.2~1. Whenα=1, it is linear damping.

 

序号   额定载荷       外径                行程       销轴       长度

S/N    Rated Load   Outside Diameter (OD)    Stroke      Axis Pin      Length

根据现场安装需要设计 Designed according to field installation requirements.

 

 

粘滞阻尼器的选型Model Selection of Viscous damper

为使用户方便、快捷、正确的选用我公司生产的粘滞液压阻尼器产品,可按下述步骤进行选型设计。用户也可将安装节点的有关参数(包括膨胀位移量、工作冲程、最大阻尼力、阻尼系数、速度指数及安装尺寸等)提供给我公司,由我们为您选型及设计详细的安装图。

To make users select viscous hydraulic damper products produced by our company conveniently, quickly and correctly, lectotype design can be conducted according to the following steps. Users also can provide our company with relevant parameters of installation node (including the expansion displacement, working stroke, maximal damping force, damping coefficient, velocity exponent and installation dimensions etc.), we shall select model for you and design a detailed installation diagram.  

1. 选用液压阻尼器的一般注意事项:General Considerations on Selection of Viscous Hydraulic Damper 

a) 粘滞阻尼器载荷的选择:按安装节点的最大阻尼力≤额定载荷的原则选用。


b) 速度指数α可选范围为0.1~1,以抗震为主的阻尼器一般可选α<0.4;以抗风为主的一般可选α≥0.4。

 

Selection of load of vicious damper: selected pursuant to the principle that the maximal damping force of installation node≤rated load.


b) a selected range of velocity exponent α is 0.1~1, damper giving priority to earthquake resistance commonly selectsα<0.4; damper to wind resistance selectsα≥0.4.

 

 

2. 行程选择Stroke Selection

阻尼器行程的选择可根据安装节点的膨胀位移量和工作冲程的大小确定,同时考虑每边不小于20mm的行程裕度,一般建筑用阻尼器的冲程建议在±150mm以内,桥梁用阻尼器的行程略大于伸缩缝行程即可。

Stroke selection of dampers can be determined according to expansion displacement of installation node and working stroke size while more than 20mm of stroke margin at each side should be considered. Generally, it is suggested that stroke of damper for buildings be within ±150mm, and that stroke of damper for bridges be slightly larger than that of expansion joint.

粘滞阻尼器的试验Viscous Damper Test

公司试验机的能力:Capacity of corporate testing machine:

试验机最大行程:±500mm   最大动载速度:1200mm/s

最大动载力:3000kN         最高频率:5Hz(±10mm)

试验波形:正弦波、三角波、方波

Maximal Stroke: ± 500mm    Maximal dynamic load speed: 1200mm / s    
Maximal Dynamic Force: 3000kN    Highest Frequency: 5Hz (± 10mm)
Test Waveforms: sine, triangle, square wave 

阻尼器试验照片:Test Photos of Viscous Damper

理论曲线和试验曲线对比Comparison of the theoretical and experimental curves

60个循环疲劳试验曲线60 cyclic fatigue test curves

 

每台阻尼器出厂时须进行下述试验:Each damper as leaving factory needs undergoing the following tests:

1、低速运动阻力f低  Low speed resistance to motion-- f low

各种规格阻尼器的低速运动阻力f低应不大于其额定载荷的10%。

低速运动阻力f低 of various specifications of dampers should be less than 10% of rated load.

2、动力测试Dynamic Test

在阻尼器专用试验台上,按设计要求的速度和载荷完成振动试验,并作出以下曲线:On the exclusive test table of damper, vibration test is made according to speed and load required by design. And the following curves are made:

1) 阻尼力(额定载荷)、冲程和速度的时程曲线;Time curve of damping force (rated load), stroke and speed;

2) 拉、压双向冲程和阻尼力(额定载荷)的滞回曲线(要求在±15%的误差范围内);Hysteretic curve of pulling, pressing two-way stroke and damping force (rated load) (it is required to be within ±15% error range); 

 

粘滞阻尼器的安装设计Installation Design of Viscous Damper

根据两端的连接条件,粘滞阻尼器在出厂时可以做成两端球铰连接或一端球铰连接,一端法兰连接两种形式。

In terms of connecting condition of both ends, viscous damper as leaving factory can be made into spherical hinge connections at two ends or at one end.

粘滞阻尼器对密封性要求较高,将阻尼器端部做成球铰连接可以适应连接误差和平面外变形,保证阻尼器主要承受轴向力,避免过大的剪力和弯矩对密封性的不利影响。对于一端球铰连接,一端法兰连接的阻尼器,与法兰连接支撑的另一端也做成球铰连接。

Viscous damper has higher requirements on tightness. The ends of dampers can made into spherical hinge connections to adapt to error and transformation outside plane, ensuring major bearing axial force of dampers to avoid that overlarge shearing force and bending moment cause adverse impact on tightness. To spherical hinge connection at one end, damper of flange connections at one end and the other end supported by flange connections are made into spherical hinge connections.

一般的情况下,阻尼器的基本连接方式如图:

In common cases, fundamental connection type of damper can be seen in the figure:

(图示一)(Fig. 1)

 

1. 安装时机:Installation Time:

为避免被邻近设备、结构件意外碰伤或焊接时的飞溅物飞溅,阻尼器的安装应该在其邻近的设备、结构件安装结束后实施。

To avoid unexpected injuries by adjacent equipment, structural elements or splashing of objects as welding, installing damper should be made after adjacent equipment and structural elements finish erecting.

2. 安装步骤Installation Steps

安装前首先应核对安装节点的位置、安装尺寸、阻尼器的型号等是否符合设计图纸及文件的要求。Prior to installation, check first whether location of installation node, installation dimension and damper model etc meet the requirements of design drawing and documents.

A. 安装销座组件:Installation of Pin Boss Components 

根据安装图(或吊点图)的要求,将销座组件用螺栓或焊接方式固定在指定的生根梁上。

Pursuant to requirements in installation diagram (or points hanging diagram), pin boss components are fastened to the appointed rooting beam by bolts or in a welding way.

如采用焊接方式固定:焊接要求应符合设计文件规定;为避免销座扭曲变形,建议各条焊缝的层间焊接顺序如图所示。

In case of fastening in a welding way: welding requirements should be in accordance with stipulations of design documents; to avoid distorting of pin boss, it is suggested that the welding sequence of each welding line among lines be as shown in the figure.

B、测量两销座孔间的距离L和阻尼器销头孔间距L1,确定其偏差。Measure clearance L of the two pin boss holes and clearance L1 of damper pin head holes, determine its deviation;

C、必要时调节阻尼器上的调节螺母,使L=L1。If necessary, adjust regulating nuts on damper to make L=L1;

D、将阻尼器的两端通过销轴与销座安装在一起。Both ends of damper are installed together by axis pin and pin boss.

E、旋紧阻尼器的调节螺母。销座采用膨胀螺栓锚固的,旋紧所有的螺母。Screw up regulating nuts on damper; pin boss is anchored by expansion bolt, screw up all nuts.

粘滞阻尼器的检查和维护Inspection and Maintenance of Viscous Damper

使用阻尼器的主要目的是防止偶发事件(地震、风载等)对结构造成破坏,因而阻尼器在运行期间必须保证随时都处于良好功能状态。为此阻尼器须进行在役期间检查。The major purpose of using dampers is to prevent accidental events (earthquake, wind load etc) from destroying structures. Thus, damper must ensure in great functional state at any time during operation. So damper must conduct inspection in service.

(一)定期检查Periodic Inspection

1.定期检查一般规定:General provision of periodic inspection:

1)定期检查须由熟悉或了解液压阻尼器的人员进行;Periodic inspection should be made by personnel knowing or getting familiar with hydraulic dampers;

2)第一次检查应该在阻尼器安装后,工程交付前进行;以后每年应至少进行一次检查;The first inspection should be made after damper is erected and before project is handed over; inspection from now on should be made at least once every year; 

3)定期检查的结果要做好记录,并归档以供下次定期检查及全面检查时参考。Record the results of periodic inspections and file for reference as next periodic inspection and overall checkup.

2.定期检查的主要项目: Major projects of periodic inspection:

1)检查阻尼器的铭牌数据、安装位置、元件连接,是否符合安装图(或吊点图)的有关规定,若不符则应重新安装;Check whether nameplate date of damper, installation location and components connection meet relevant regulations of installation diagram (or points hanging diagram), if non-conformance, re-installation is needed;

2)检查阻尼器的零、部件是否有缺失,如有丢失应立即装上新零件;Check whether there are missing parts, components of damper, if missing, erect new parts immediately;

3)检查承载元件包括附近钢结构是否有异常变形现象;Check whether bearing elements (including adjacent steel structure) have unusual and deformed phenomena;

4)销座组件焊缝是否有裂纹,焊角高度k是否符合设计要求,如有上述情况应及时返修;各紧固件是否拧紧。Check whether the welding lines of pin boss components have fissures and welded angle height k meets design requirements or not, if conditions above exist, repair them timely; check whether all fastening pieces are screwed up or not;

5)检查阻尼器活塞位置,行程裕度是否符合设计使用要求;Check whether piston location of damper and stroke margin meet operating requirements of design;

6)检查阻尼器是否有渗漏油现象,如有应及时通知制造厂进行维修;Check whether damper has oil leaking condition, if existent, inform the manufacturer promptly to repair;

(二)全面检查 Overall Inspection

阻尼器经过几年的运行以后,阻尼器内部的液压介质、密封件也会发生不同程度的老化,相对滑动的零件之间也会产生不同程度的磨损;因而,在正常工况下,当阻尼器运行5年后,建议进行一次全面检查。全面检查的一般规定如下:

After several years’ operation, hydraulic medium and sealing elements inside the damper also have different degrees of aging, and abrasion is also caused among relative sliding parts; therefore, in normal working condition, it is suggested to conduct an overall inspection after running 5 years. General regulations of overall inspection are as follows:

1.一般情况下,全面检查应预先制订检查计划;并由专业制造厂家进行;

In general condition, overall inspection should formulate checkup planning in advance; and professional manufacturers will carry out;

2.由工程项目人员根据阻尼器运行工况,每种型号的阻尼器任选2台,从现场安装位置拆卸下来,作性能试验。对于性能试验不合格的产品,应解体检查。分析不合格原因,并给出不合格品的处理建议--维修或更换。

According to operational states of damper, project personnel select 2 each type of dampers and take down site installation locations to make performance test. For qualified products in the performance test, they should be disintegrated to check. Unqualified causes are analyzed and handling suggestions on unqualified products are given—maintenance or replacement.

3.全面检查后或更换的阻尼器的性能均应满足原设计使用要求。Damper performance after overall inspection or replacement should meet operating requirements of the original design. 

 

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