02991nam a2200421 4500 20260818113407.0 290798 th eng .b10271065 AIT Thesis no. ST-89-13 Rajaratnam, Praemachandran Far field shape functions for vibrations of elastic spaces Bangkok : Asian Institute of Technology, 1989 88 p. Thesis ; no. ST-89-13 A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1989 In this study the far field shape functions in the three different model of half spaces such as homogeneous half space a homogeneous full space and two homogeneous half spaces bonded together for the case of two dimensional a nd three dimensional problems are considered. The models are subjected to various harmonic vibrations such as inplane axisymmetric , asymmetric and antiplant axisymmetric , antisymmetric harmonic vibration for the case of two dimensional problem. In the case of three dimensional problem, the vibration cases considered are axisymmetric , asymmetric point load and pure torsion. For radiating element the shape functions are derived as the combination of above cases. It is found that the body wave solution can be separated into pressure and shear waves with the oscillating circular functions whose periods of oscillation are constant, which depends on underlying a nd overlying media pressure and shear wave nondimensionalized numbers. To get the approximate shape function in intermediate field, a calibration technique is suggested. Structural dynamics Finite element method Karasudhi, Pisidhi, Chairperson Ueda, Tamon, Examination Committee Pichai Nimityongskul, Examination Committee Norwegian Government (NORAD), Scholarship Donor Asian Institute of Technology. Thesis ; no. ST-89-13 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B18125 .b10271065 mnait s 240401 2 951012 m a s 0 mnait mnait mnarc 20 40 Barcode : 30050003064317 CREATED : 1995-10-14 RECORD # : i10334117 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050003064325 CREATED : 1995-10-14 RECORD # : i10334129 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160068762 CREATED : 2016-08-04 RECORD # : i12932103 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 43192 43192 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. ST-89-13 30050003064317 2026-08-18 11:34:07 1 2026-08-18 20 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. ST-89-13 30050003064325 2026-08-18 11:34:07 2 2026-08-18 20 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. ST-89-13 30050160068762 2026-08-18 11:34:07 1 2026-08-18 40