Purpose

This study proposes a tensegrity-based traction structure with D-bar dual cable units. It is used to connect the airship and the ground to stabilize the airship.

Design/methodology/approach

The mathematical models and dynamic models of the D-bar dual cable (hereafter referred to as DD cable) unit of the tensegrity-based traction structure are established. Based on the minimum mass method, the mass of the DD cable unit in the critical state (cable member is yielding, or bar member is buckling or yielding) is analyzed. Then, the tensile strength of the DD cable unit and single cable unit under the same condition is compared using the control variate method. Finally, based on ANSYS dynamic simulation, the stability of the two structures under the same external force disturbance was tested.

Findings

Expressions for the minimum mass of the DD cable unit under different failure conditions are solved. Dynamic simulation results show that the capacity of resisting disturbance of the DD cable unit is much better than that of the single cable unit under the same wind speed. So, we find a structure more suitable for the fixed connection of an airship.

Originality/value

This study helps to provide theoretical reference and thinking for the practical application of the traction structure with a D-bar dual cable unit.

中文翻译：

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基于张拉整体的牵引结构的动力学分析

目的

本研究提出了一种基于张拉整体的 D 型双索单元牵引结构。用于连接飞艇和地面，稳定飞艇。

设计/方法论/途径

建立了张拉整体牵引结构D型杆双索（以下简称DD索）单元的数学模型和动力学模型。基于最小质量法，对DD索单元在临界状态（索件屈服，或杆件屈曲或屈服）的质量进行了分析。然后，采用控制变量法对相同条件下DD电缆单元和单电缆单元的抗拉强度进行了比较。最后基于ANSYS动力仿真，测试了两种结构在相同外力扰动下的稳定性。

发现

求解了不同失效条件下DD电缆单元的最小质量表达式。动态仿真结果表明，在相同风速下，DD电缆单元的抗扰动能力明显优于单电缆单元。因此，我们找到了一种更适合飞艇固定连接的结构。

原创性/价值

本研究有助于为D型杆双索单元牵引结构的实际应用提供理论参考和思考。