Investigation of the Effect of V-Clamp Band Design Parameters on the Bending and Axial Stiffness of the Flanged Joints
الموضوعات :
SeyyedAbdolSajjad Borhani
1
(
Department of Mechanical Engineering, Yadegar-e-Imam Khomeini (RAH) Shahr-e-Rey Branch, Islamic Azad University, Tehran, Iran
)
AliAkbar Lotfi neyestanak
2
(
Department of Mechanical Engineering, Yadegar-e-Imam Khomeini (RAH), Shahr-e-Rey Branch, Islamic Azad University, Tehran, Iran
)
Ali davar
3
(
Composite Research Centre, Malek Ashtar University, Tehran, Iran
)
الکلمات المفتاحية: Wedge, V-Clamp Band, Static Loading & Separation, Stiffness, Flange,
ملخص المقالة :
The main target of this paper is to obtain an optimum wedge angle for best static and dynamic performance of a V-shaped clamp band separation mechanism. For this purpose, by using the finite element method, the proper 3D model for V-clamp band mechanism has been modelled and analysed in Abaqus/Explicit solver. In order to study the effect of wedge angle on bending and axial stiffness of V-clamp joint, many quasi-static analyses with different wedge angles were accomplished so the relation between wedge angle and axial stiffness of V-clamp joint under symmetric bending loading is extracted. In the next step, dynamic analyses were accomplished so the relation between wedge angle and separation time (duration between trigging moment and the time of disconnecting between flanges and wedged clamps) is extracted. For verification, this project results have been compared with the results of other researches and good agreement is observed. The results show that the optimal wedge angle for obtaining maximum stiffness together with minimum spring back disconnection time for the V-clamp band mechanism is 20˚.
[1] Qin, Z., Cui, D., Yan, S., and Chu, F., Hysteresis Modeling of Clamp Band Joint with Macro-Slip, Mechanical Systems and Signal Processing, Vol. 66, 2016, pp. 89-110.
[2] Sahboun, S. M., Barrans, S. M., Simulating Torsional Slip in V-band Clamp Joints, Applied Mechanics and Materials, Vol. 798, 2015, pp. 53-58.
[3] Cui, D., Yan, S., Li, J., Qin, Z., and Guo, X., Dynamic Analysis of Satellite Separation Considering the Flexibility of Interface Rings, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Vol. 229, No. 10, 2015, pp. 1886-1902.
[4] Barrans, S. M., Khodabakhshi, G., and Muller, M., Classical and Numerical Approaches to Determining V-Section Band Clamp Axial Stiffness, Open Engineering, Vol. 5, No. 1, 2014, pp. 99-110.
[5] Li, J., Yan, S., and Tan, X., Dynamic-Envelope Analysis of Clamp-Band Joint Considering Pyroshock of Satellite Separation, Journal of Spacecraft and Rockets, Vol. 51, No. 5, 2014, pp. 1390-1400.
[6] Qin, Z. Y., Yan, S. Z., and Chu, F. L., Influence of Clamp Band Joint On Dynamic Behavior of Launching System in Ascent Flight, Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Vol. 228, No. 1, 2014, pp. 97-114.
[7] Qin, Z. Y., Yan, S. Z., and Chu, F. L., Analytical Modeling of Clamp Band Joint Under External Bending Moment, Aerospace Science and Technology, Vol. 25, No. 1, 2013, pp. 45-55.
[8] Li, J. L., Yan, S. Z., and Tan, X. F., Modeling and Simulation of Clamp Band Dynamic Envelope in a LV/SC Separation System, Applied Mechanics and Materials, Vol. 141, 2012, pp. 359-363.
[9] Qin, Z. Y., Yan, S. Z., and Chu, F. L., Dynamic Characteristics of Launch Vehicle and Spacecraft Connected by Clamp Band, Journal of Sound and Vibration, Vol. 330, No. 10, 2011, pp. 2161-2173.
[10] Qin, Z. Y., Yan, S. Z., and Chu, F. L., Dynamic Analysis of Clamp Band Joint System Subjected to Axial Vibration, Journal of sound and vibration, Vol. 329, No. 21, 2010, pp. 4486-4500.
[11] Rome, J., Goyal, V., and Martino, N., Techniques for Finite Element Analysis of Clamp Band Systems, In 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference 17th AIAA/ASME/AHS Adaptive Structures Conference 11th AIAA No, 2009, pp. 2353.
[12] Shoghi, K., Rao, H. V., and Barrans, S. M., Stress in A Flat Section Band Clamp, Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 217, No. 7, 2003, pp. 821-830.
[13] Klarer, P. R., Vaughn, M. R., Gilbride, J. F., Baty, R. S., and Adams, J. L., Design for an Internal Circular Compression Band Restraint Device (Marman Clamp, V-Band). Sandia national Laboratories, SAND2002-2744J, 2002.
[14] Lancho, M., Larrauri, J., and Gomez-Molinero, V., CRSS: A Separation System for Launching Very Heavy Payloads, Acta Astronautica, Vol. 47, No. 2-9, 2000, pp. 153-162.
