Corrigendum to

Abstract

The authors would like to point out three writing mistakes that have been found after the publication of the original paper: Equation (13) should be written as: 1 (Formula presented.) to correctly represent the intended column vector of the element's degrees of freedom. Equation (49) and (50) should be written as: 2 (Formula presented.) to keep the vector format consistent across the terms. The derivations afterwards are not affected by this change. Equation (63) should have no minus sign on the second term of the second row, that was a typographical error. The correct Equation (63) should be written as: 4 (Formula presented.) The above mistakes appear only in the writing of the manuscript, not in the actual implementation of the method. Hence, the results and conclusions in the original paper remain unchanged. ACKNOWLEDGMENT The authors would like to thank Mr. Zhe Han from Nanjing University of Aeronautics and Astronautics for pointing out some of the above mistakes.