对剪刀电缆的参数化建模和机械特性进行研究
Lijuan Zhao1,2,3, Haining Zhang1, Feng Gao4
1School of Mechanical Engineering, Liaoning Technical University, Fuxin, China.
PloS one
|May 30, 2024
概括
通过参数建模优化剪切机电缆设计,可以提高机械性能和疲劳寿命. 这项研究确定了最优的距离直径比率和延伸配置,以提高在恶劣条件下的耐用性.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 电气工程 电气工程
背景情况:
- 剪切机电缆面临着巨大的挑战,因为它们存在巨大的变形和恶劣的环境,影响机械性能和疲劳寿命.
- 当前的参数建模技术与层接触度,螺旋曲线生成和绝缘和外的不规则表面构造作斗争.
研究的目的:
- 为解决剪切机电缆设计中的参数建模挑战.
- 研究各种设计参数对剪切机电缆的拉伸和曲性能的影响.
- 优化电缆结构以提高机械性能和延长疲劳寿命.
主要方法:
- 用参数建模来递归生成螺旋曲线并构建不规则的表面.
- 通过不同的距离直径比率,延伸方向和单丝特性来研究拉伸和曲性能.
- 使用Ncode预测疲劳寿命,并根据曲测试结果进行验证.
主要成果:
- 观察到应力非线性增加,随着电源和控制导体中距离直径比率的增加.
- 确定了最佳的距离直径比:电缆为6,控制导体为5,电源导体为14.
- 更细的单丝纤维通过增加横截面填充比率来提高拉伸和曲性能.
结论:
- 优化的剪刀电缆设计证明了更好的疲劳寿命,运行高达15.12e4周期.
- 与平行链条相比,反链条提供了一个更稳定的结构,与平行链条相比,压力相对较高.
- 该研究为设计更强大,更耐用的剪刀电缆提供了一个框架,用于要求更高的应用.
相关概念视频
01:13Cable Subjected to Its Own Weight
448
Overhead power transmission lines rely on cables to carry electricity across large distances. To ensure the stability and functionality of these lines, it is crucial to understand the shape and tension experienced by the cables under the influence of their weight.
A generalized loading function is employed to analyze a cable subjected to its own weight. This function considers the force acting along the cable's arc length rather than its projected length, providing a more accurate...
A generalized loading function is employed to analyze a cable subjected to its own weight. This function considers the force acting along the cable's arc length rather than its projected length, providing a more accurate...
448
01:24Cable Subjected to a Distributed Load
675
The analysis of suspension bridges is a complex and critical process that involves multiple factors, including the shape and tension of the main cables. The main cables of suspension bridges are subjected to distributed loads, which result in changes in tensile forces and deformation of the cable. These loads must be carefully considered to ensure that the bridge is safe and capable of supporting the weight of different loads.
675
01:29Cable: Problem Solving
327
When dealing with a cable that is fixed to two supports and subjected to uniform loading, it is crucial to determine the maximum tension in the cable. This process can be broken down into several key steps, as outlined below:
327
01:28Cable Subjected to Concentrated Loads
819
Flexible cables are commonly used in various applications for support and load transmission. Consider a cable fixed at two points and subjected to multiple vertically concentrated loads. Determine the shape of the cable and the tension in each portion of the cable, given the horizontal distances between the loads and supports.
819
01:31Energy Stored In A Coaxial Cable
1.4K
A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic...
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic...
1.4K
01:16Design of Transmission Shafts
290
The design of a transmission shaft is governed by two primary specifications: the power it transmits and its rotational speed. These parameters guide the selection of the shaft's material and cross-sectional dimensions, ensuring that the material's maximum shearing stress remains within the elastic limit while transmitting the desired power at the given speed. The system's power is intrinsically linked to the applied torque. The torque applied to the shaft can be calculated by...
290