P3M-2 Dynamic Analysis and Optimal Design of a Novel Small 2-D Planar Ultrasonic Motor

Author(s):  
R. Liu ◽  
C. Li ◽  
S. Xu
2014 ◽  
Vol 529 ◽  
pp. 410-414
Author(s):  
Cang Zhao ◽  
Guang Li Song ◽  
Lei Xu

By combining the industrial design software UG and finite element dynamic analysis software ANSYS/LS-DYNA, the paper respectively designs the non-linear knitting cams with polynomial curves, and simulates the loop-forming process in the interaction between the cams and needles. Based on comparative analyses, it’s thereby concluded that the polynomial curve has the best performance and is significantly superior to the cam curve composed of straight-lines and circular-arcs; the elements with higher stresses are located above the butt of needle jack and the joint of the jack and latch needle; and the polynomial curve is effective in lowering the maximum stress of the needle.


Author(s):  
H. Ashrafeiuon ◽  
N. K. Mani

Abstract This paper presents a new approach to optimal design of large multibody spatial mechanical systems. This approach uses symbolic computing to generate the necessary equations for dynamic analysis and design sensitivity analysis. Identification of system topology is carried out using graph theory. The equations of motion are formulated in terms of relative joint coordinates through the use of velocity transformation matrix. Design sensitivity analysis is carried out using the Direct Differentiation method applied to the relative joint coordinate formulation for spatial systems. Symbolic manipulation programs are used to develop subroutines which provide information for dynamic and design sensitivity analysis. These subroutines are linked to a general purpose computer program which performs dynamic analysis, design sensitivity analysis, and optimization. An example is presented to demonstrate the efficiency of the approach.


2003 ◽  
Vol 105 (3) ◽  
pp. 247-254 ◽  
Author(s):  
Xiaopeng Wang ◽  
Chong Jin Ong ◽  
Chee Leong Teo ◽  
Sanjib K. Panda

2009 ◽  
Author(s):  
Da Xu ◽  
Jian-xun Zhao ◽  
Jun-biao Hu ◽  
Hua Li ◽  
Chuan-you Wang ◽  
...  

2015 ◽  
Vol 8 (3) ◽  
pp. 639-663 ◽  
Author(s):  
A. Kaveh ◽  
A.A. Aghakouchak ◽  
P. Zakian

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