Design Consideration for Precise Cable Drive

Lu, Ya Fei; Fan, Da Peng; Sheng, De Jun; Zhang, Zhi Yong

doi:10.4028/www.scientific.net/amr.305.37

Cited by 11 publications

(8 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Precise cable drive 1–4 is a flexible frictional transmission method that transmits power from drive capstans to driven pulleys by a properly preloaded transmission medium. Owing to its many advantages, such as lightweight, high efficiency, and simplicity, it has been widely used in the fields of free space laser communication.…”

Section: Introductionmentioning

confidence: 99%

Design and performance analysis of a many-to-one configuration precise cable drive mechanism with high precision and large torque

Xie

Tan

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

Precise cable drive is a flexible frictional transmission method that transmits power from drive capstans to driven pulleys by a properly preloaded transmission medium. Since most of precise cable drive mechanism with high pointing precision proposed in previous studies suffer from low transmission stiffness and small output torque, this paper presents a novel many-to-one configuration precise cable drive mechanism (MCCDM) with high precision and large torque. The design methods of many-to-one configuration are studied including the system optimal design and cable wrapping design. The transmission characteristics of the developed configuration are analyzed, considering transmission capacity, transmission backlash, and transmission stiffness. The corresponding parameter sensitivities are also investigated. Moreover, a prototype of the MCCDM has been built, with which a series of experiments are carried out. It is noted that the developed mechanism has a motion range of ±2 rad. The steady-state error to a step reference of 1 rad amplitude is only 1.39 µrad and the position resolution is better than 0.5 µrad. This mechanism could achieve maximum output torque of 35 Nċm with compact size and light weight. It has reached a considerable toque-to-weight ratio of 8.997 N·m/kg. The experimental results show that the self-excited oscillation and backlash are dominant nonlinear effects in the MCCDM system. It shows that the self-excited oscillation is a function of the rotational displacement in such a system, with the highest peak at 0.1669 cycle/mrad and the amplitude of 34.63 µrad. The backlash could be measured about 60 µrad under exciting of a small amplitude and low frequency sinusoidal signal. The proposed technologies could have strong technological implications in some special applications such as antenna servo system.

show abstract

Section: Introductionmentioning

confidence: 99%

Design and performance analysis of a many-to-one configuration precise cable drive mechanism with high precision and large torque

Xie

Tan

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…Furthermore, as the weight and space is premium on such vehicles, it is desirable that the mechanisms could be as compact and lightweight as possible. 3 Precise cable drive 4–7 is an elegantly transmission mode. Owing to its many advantages, such as high efficiency, flexible layout, and lightweight, it has been widely used in the EOTS.…”

Section: Introductionmentioning

confidence: 99%

Analytical and experimental research on transmission backlash in precise cable drive for an electro-optical targeting system

Xie

Zhang

et al. 2019

Advances in Mechanical Engineering

View full text Add to dashboard Cite

Due to transmission backlash of precise cable drive in electro-optical targeting system, it is difficult to predict force and pointing precisely during target detection. This article aims to develop a rigorous model for predicting the cable tension and transmission backlash of precise cable drive in electro-optical targeting system to better evaluate the performance in the preliminary design stages. The model of transmission backlash in different phase is established by satisfying the system’s geometric and equilibrium constraints, which is applicable to cable drive systems with any external load, pretension, and motion trajectories. Simulations are conducted to reveal the changes of cable deformation, cable tension, and deflection angles. The model is validated by experiments using a suitable experimental setup, predicting transmission backlash with the error level of 8.27%. The sensitivities of the preload force and external load are tested, and corresponding results are in good agreement with the theoretical ones. The backlash plunges dramatically when the preload force is small and flattens out when the preload force is larger than the threshold value. A proper preload force should be applied to keep the backlash in stable state. The threshold value could be predicted by the proposed model. The method presented in this article could provide a theoretic guide for system design and nonlinearity compensation.

show abstract

“…Precise cable drive (Lu et al, 2011;Lu, 2013;Lu and Fan, 2013;Fan et al, 2018) is an elegant transmission mode and has many advantages of high efficiency, flexible layout, besides being lightweight. These properties make precise cable drive widely used in the acquiring tracking and pointing (ATP) applications (Ren and Stephens, 2015), such as free space laser communication system (Sofka, 2007;Korevaar and Bloom, 1993), satellite remote sensing platform (Li et al, 2015;Zhang et al, 2013) and hybrid active vision robot (Dankers and Zelinsky, 2004;Sutherland et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

“…Single-Input Single-Output (SISO) spur gear configuration (Lu et al, 2011;Sofka, 2007) is the most common layout of the precise cable drive mechanism, due to its merits including elegant simplicity, low inertia and high efficiency. But this configuration suffers from low torque-to-weight ratio and loose structure.…”

Section: Introductionmentioning

confidence: 99%

Compact design of a novel precise cable drive mechanism with high precision and large torque-to-weight ratio

et al. 2019

View full text Add to dashboard Cite

Abstract. Precise cable drive is an elegant transmission mode and has many advantages of high efficiency, flexible layout, besides being lightweight. Since the common layout, Single-Input Single-Output (SISO) spur gear configuration, suffers from low torque-to-weight ratio and loose structure, this paper proposes a novel transmission configuration with large torque-to-weight and compact size. It combines the advantages of Multiple-Input Single-Output (MISO) configuration and bevel gear configuration. The design methods and transmission kinematics of the novel configuration are studied. An analytical model is developed for characterizing the transmission backlash of the proposed configuration, which is derived by simultaneous satisfying system's constitutive relation, equilibrium, and geometric constraints. Parametric sensitivities are carried out to investigate the influence of the major design parameter on the transmission characteristics. At last, a prototype of MISO with bevel gear configuration cable drive mechanism (MBCDM) is built, with which a series of experiments are carried out. This mechanism could achieve maximum output torque of 3.3 Nm with considerable toque-to-weight ratio of 9.649 Nm kg−1. The experimental results show that the transmission backlash and ripple torque are dominant nonlinear effects in the MBCDM system. It shows that the ripple torque is connected with the rotational displacement, with the highest peak at 694.3 cycle rad−1 and the amplitude of 24.67 µrad. The transmission backlash experimental results are in good agreement with simulation ones, with the error level of 4.14 %.

show abstract

Design Consideration for Precise Cable Drive

Cited by 11 publications

References 2 publications

Design and performance analysis of a many-to-one configuration precise cable drive mechanism with high precision and large torque

Design and performance analysis of a many-to-one configuration precise cable drive mechanism with high precision and large torque

Analytical and experimental research on transmission backlash in precise cable drive for an electro-optical targeting system

Compact design of a novel precise cable drive mechanism with high precision and large torque-to-weight ratio

Contact Info

Product

Resources

About