VIBRATION ANALYSIS OF 2-PR (PA) U- 2-PR (PA) R NEW PARALLEL MECHANISM

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MAHBOUBKHAH MEHRAN; PAKZAD SAJJAD; HOMAYOUN SADEGHI MORTEZA; ETTEFAGH MIR MOHAMMAD

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Journal: INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY Year:2018 | Volume:11 | Issue:2 Page(s): 47-56

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Title

VIBRATION ANALYSIS OF 2-PR (PA) U- 2-PR (PA) R NEW PARALLEL MECHANISM

Author(s)

MAHBOUBKHAH MEHRAN | PAKZAD SAJJAD | HOMAYOUN SADEGHI MORTEZA | ETTEFAGH MIR MOHAMMAD | Issue Writer Certificate

Keywords

MODAL TEST

PARALLEL MECHANISM

VIBRATION ANALYSIS

Abstract

Parallel kinematic machines, are closed loop structures which have more accuracy, stiffness and ability to withstand high loads. In this paper the vibration equations of the new PARALLEL MECHANISM, that has higher stiffness because of parallelogram system and fixed length pods, have been derived by analytical approach. Whereas the proposed mechanism is applied as a machine tools, its vibrational behavior investigation has key impact factor. All the kinematic chains of the mechanism have been taken into consideration to achieve the coupled system of equations. To extract mechanism natural frequencies, modal analysis is carried out using three methods including analytical, finite element (FEM) and experimental method on PARALLEL MECHANISM which has four degrees of freedom including three linear motion along the x, y and z axes and a rotary motion about x axis. Finally the natural frequencies and mode shapes obtained from analytical, experimental and FEM were compared. It is worth noting that all the frequencies obtained from three methods had little differences.

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APA: Copy

MAHBOUBKHAH, MEHRAN, PAKZAD, SAJJAD, HOMAYOUN SADEGHI, MORTEZA, & ETTEFAGH, MIR MOHAMMAD. (2018). VIBRATION ANALYSIS OF 2-PR (PA) U- 2-PR (PA) R NEW PARALLEL MECHANISM. INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY, 11(2), 47-56. SID. https://sid.ir/paper/715976/en

Vancouver: Copy

MAHBOUBKHAH MEHRAN, PAKZAD SAJJAD, HOMAYOUN SADEGHI MORTEZA, ETTEFAGH MIR MOHAMMAD. VIBRATION ANALYSIS OF 2-PR (PA) U- 2-PR (PA) R NEW PARALLEL MECHANISM. INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY[Internet]. 2018;11(2):47-56. Available from: https://sid.ir/paper/715976/en

IEEE: Copy

MEHRAN MAHBOUBKHAH, SAJJAD PAKZAD, MORTEZA HOMAYOUN SADEGHI, and MIR MOHAMMAD ETTEFAGH, “VIBRATION ANALYSIS OF 2-PR (PA) U- 2-PR (PA) R NEW PARALLEL MECHANISM,” INTERNATIONAL JOURNAL OF ADVANCED DESIGN AND MANUFACTURING TECHNOLOGY, vol. 11, no. 2, pp. 47–56, 2018, [Online]. Available: https://sid.ir/paper/715976/en

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