对于拉弯构件问题，本文也作了论述。
The Problem of bars subjected to axial tension and bending is also described here.
我去海外旅行的途中，为了防止琴颈被弦拉弯，经常将吉他的弦放松。
Whenever I travel overseas, I always detune the guitar and take the tension off the neck.
介绍了转台拉弯机的工作原理及控制特点，研究了其力和位移的PID控制模型。
This paper introduces the working principle and controlling characteristic and studies the PID control models of the force and displacement of the rotary Stretch-bending former.
对比了多点拉弯件的轮廓曲线和目标轮廓曲线，验证了多点拉弯成形技术的成形精度。
The shaping accuracy was validated by comparing the target of curve with the outline curve on the formed parts.
根据成形极限图和规定最大回弹超差量来调整变形模式，找到优化的变形模式和拉弯轨迹。
Deformation mode is adjusted according to forming limit diagram (FLD) and maximum springback error, so the optimized one can be found, which in turn optimizes the stretch bending trajectory.
加工项目：剪板、折弯、拉弯、卷弯、卷圆、焊接、钻孔攻牙等，客户来图来料加工服务。
Processing projects: shearing, bending, stretch bending, roll bending, roll round, welding, drilling and tapping, customer sample processing services.
文章论述了在设计中采用钢屋架下弦两节点下悬吊双槽钢作为分布梁避免钢屋架下弦拉弯工作。
The double groove steel is suspended under the two nodes of bottom chord of steel roof truss to prevent the bottom chord from stretch bending.
介绍了液压拉弯机的结构和液压原理，着重阐述了用电液伺服系统控制拉伸油缸拉紧力的设计过程。
The structure and the principle of the hydraulic pull-bending machine based on electrohydraulic servo system were introduced. And the design of the stretching force in the system was mainly addressed.
本文从双向弯曲、拉弯、扭弯等组合变形方面详细推导了应变能公式，得出组合应变能为各基本应变能之和。
In this paper, the formula of strain energy is derived in detail form the combined deformation like bidirectional bending, tension-bending and torsion-bending deformation. Result illustrates th...
自主开发的拉弯式液压成排弯管机具有结构简单、可靠，可弯管屏形状复杂，还可校正管屏、造价低廉等特点。
Hydraulic type row tube bender is simple in structure, reliable which can bend and correct complicated platen with low cost.
回弹是弯曲成形中普遍存在的现象，实践证明采用拉弯工艺可以有效地减小回弹，从而达到提高成形精度的目的。
Springback is a common phenomenon in bending process. It has been proved that stretch bending can decrease the springback effectively, which can improve the forming precision.
在“拉弯”作用的情况下，卸载回弹后的曲率半径随着拉力的增大而单调减小，因此拉力的作用有助于减小回弹。
After unloading and resiling, the curvature radius of CT decreases monotonously along with stretch increasing. As a result, stretch is helpful to reducing resilience.
运用VC编制了通用计算程序，计算结果表明：该算法稳定，适合于各种拉弯模具外形曲线，计算效率及精度高。
Meanwhile a general calculation program has been developed with VC. The result shows that the algorithm is steady, which has high efficiency and precision, and is adaptive to convex dies.
采用数据文件插补和在线插补两种方案，解决了拉弯机位移控制中任意曲线的插补问题，实现了任意曲线轨迹的精确控制。
To solve the interpolation problem of random curve, the schemes of data file interpolation and on-line interpolation are used, which proves to be accurate.
文章运用模块化思想设计了几何仿真和物理仿真集成的数控拉弯机仿真系统，提出了拉弯过程几何仿真、碰撞检测及物理仿真的实现方法。
This paper applies the modularization thinking in designing the NC stretch bending machine simulation system, that is an integration system of geometric and physical simulation.
本文采用有限元模拟的方法，结合金属成形的塑性变形理论，深入分析了拉弯的成形机理，建立了用于转台式拉弯成形模拟的有限元模型。
By using finite element simulation method and plastic distortion theory, the author analyzes the principle of the stretch bending forming and builds finite element model of rotary stretch bending.
他们在尘土飞扬的大道上拐过那个看不见塔拉农场的弯以后，布伦特勒住马，在一丛山茱萸下站住了。
When they had rounded the curve of the dusty road that hid them from Tara, Brent drew his horse to a stop under a clump of dogwood.
计算结果显示，不同细观骨料模型具有相似的规律，即随预静载增大，混凝土动弯拉强度上升，至一定峰值后回归到静载强度。
The law shows that, along with the static pre-load increasing, the dynamical bending strength of concrete would go up to a peak value and then move downward to the static strength.
研究掺聚醋酸乙烯水泥砂浆的轴拉和轴压应力—应变关系、抗弯性能以及长期粘结抗弯强度。
This paper delivered the relationships of uniaxial tensile and compressive stress with strain and bending properties, and felt-bending strength of cement mortar with polyvinyl acetate (PVAC).
对受弯构件受拉翼缘外侧粘贴FRP后的界面剪应力和界面剥离应力进行了分析。
The interfacial shear stress and peel stress between the FRP and the surface of tension flange were analyzed when the FRP was bonded to the tension flange of the bending members.
通过典型路面结构模式的计算分析，得出柔性路面层底最大弯拉应力发生的位置，有助于简化设计过程。
Through the analyzing and calculating of representative pavement structure, it is helpful for simplifying the design process to get the maximal bend stress position of flexible pavement.
棕榈藤是热带地区宝贵的非本质林产品，其柔韧、抗拉和抗弯等特点使其成为编织和制作藤制品家具的主要原料。
Rattan is valuable non - wood product in tropical areas, it has characters of pliable and tough, bending resistance, is main material of weaving and furniture making.
研究表明在超载重载条件下高等级沥青路面结构设计中以基层底部弯拉应力为设计指标控制较为合理。
The research results show that the flexible-tensile stress under the basement is the suitable design control index for the asphalt pavement structure of expressway under overload.
分析中包括了搭板的几何尺寸、材料因素、地基非均匀、枕梁及沥青加铺层对搭板弯拉应力及变形的影响。
The influence of geometric size, material properties of the slabs, inhomogeneous subgrade, sleeper beam and bituminous overlay on the bending stresses and deflection is investigated.
计算结果表明：当纵坡增大时，弯沉与层底拉应力的增幅并不十分明显，而剪应力的增幅则比较显著。
The results show deflection and increase in bottom stress level is not very obvious, but the increase of shear stress are more significant with the increase of longitudinal.
本文主要研究钢筋混凝土轴心受拉和受弯等构件中两根主生裂缝之间的钢筋与混凝土的结合(过去常称为粘结或握裹)与滑移关系。
The bond and slip relationship between the rebar and the concrete within a segment bounded by two primary cracks in a reinforced concrete tension member or a flexural member is studied.
对层布式钢纤维混凝土的弯拉强度进行了试验研究，并对其增强机理做出了简要的分析。
In this paper, the flexural-tensile strength of layered steel fiber reinforced concrete was studied, and its reinforcement mechanism was analyzed briefly.
在试验的基础上对钢筋高强陶拉砼构件在纯扭和弯扭作用下的受力和变形性能进行了研究。
Based on the experimental results, this paper studies the strength and deformation of reinforced high strength haydite aggregate concrete member in torsion and bending.
根据试验获得的结果，综合地分析了其极限弯拉强度和弯拉弹性模量；
Based on the testing results, ultimate flexural strength and flexural Young's modulus have been studied.
根据试验获得的结果，综合地分析了其极限弯拉强度和弯拉弹性模量；
Based on the testing results, ultimate flexural strength and flexural Young's modulus have been studied.
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