‘Perfect’ Spring Equilibrators for Rotatable Bodies

1989 ◽  
Vol 111 (4) ◽  
pp. 451-458 ◽  
Author(s):  
D. A. Streit ◽  
B. J. Gilmore
Keyword(s):  
Potential Energy ◽  
Infinite Number ◽  
Orientation Angle ◽  
The Other ◽  
Design Approach ◽  
Energy Functions ◽  
Potential Energy Functions ◽  
Rigid Link ◽  
Design Options

A new equilibrator design approach based on system potential energy functions is presented. This approach was used to discover a group of spring equilibrators which perfectly balance a rotatable rigid link at every orientation angle through 360 deg of link rotation. Springs are connected between a rotatable link and ground, where one end of each spring is connected to the rigid link and the other end of each spring is connected to ground. The rigid link is connected to ground by a pin joint and is free to rotate about that joint. The conditions for existence and the design equations for all equilibrators which fall into this category are developed and presented. Three designs appear to offer unique advantages over the infinite number of design options available.

Approximations for the inner branch of potential curves of diatomic molecules

1988 ◽  
Vol 66 (4) ◽  
pp. 763-766 ◽  
Author(s):  
Y. P. Varshni
Keyword(s):  
Potential Energy ◽  
Diatomic Molecules ◽  
The Other ◽  
Potential Curve ◽  
Energy Functions ◽  
Potential Energy Functions ◽  
Potential Curves

Three potential energy functions are examined with respect to their ability to reproduce the inner branch of the potential curve for 43 molecular states. Two of the states turn out to be unusual. In the remaining 41 cases, it is found that a potential proposed by the author gives the least error in 28 cases and is close to the least error in another six. The potential curves of NaAr(X) and XeCl(X) are very different from those of the other 41 states considered in this paper. The Born–Mayer potential appears to provide a reasonable representation of the inner branch of the potential curve for XeCl(X).

Potential energy functions for the ground state surfaces of SO2 and S2O

1985 ◽  
Vol 56 (4) ◽  
pp. 839-851 ◽  
Author(s):  
J.N. Murrell ◽  
W. Craven ◽  
M. Vincent ◽  
Z.H. Zhu
Keyword(s):  
Potential Energy ◽  
Ground State ◽  
Energy Functions ◽  
Potential Energy Functions

scholarly journals Reconstructing potential energy functions from simulated force-induced unbinding processes

1997 ◽  
Vol 73 (3) ◽  
pp. 1281-1287 ◽  
Author(s):  
M. Balsera ◽  
S. Stepaniants ◽  
S. Izrailev ◽  
Y. Oono ◽  
K. Schulten
Keyword(s):  
Potential Energy ◽  
Energy Functions ◽  
Potential Energy Functions ◽  
Simulated Force

Relationships Among Potential-Energy Functions

2004 ◽  
Vol 36 (2) ◽  
pp. 161-165 ◽  
Author(s):  
Francisco M. Fernández ◽  
Eduardo A. Castro
Keyword(s):  
Potential Energy ◽  
Energy Functions ◽  
Potential Energy Functions

scholarly journals A test of ab initio-generated, radial intermolecular potential energy functions for five axially-symmetric, hydrogen-bonded complexes B⋯HF, where B = N2, CO, PH3, HCN and NH3

2021 ◽  
Vol 23 (12) ◽  
pp. 7271-7279
Author(s):  
Anthony C. Legon
Keyword(s):  
Hydrogen Bond ◽  
Potential Energy ◽  
Ab Initio ◽  
Intermolecular Potential ◽  
Axially Symmetric ◽  
Energy Functions ◽  
Potential Energy Functions ◽  
Acceptor Atom ◽  
Bonded Complexes ◽  
Hydrogen Bonded

Radial P.E. functions of hydrogen-bonded complexes B⋯HF (B = N2, CO, PH3, HCN and NH3) have been calculated ab initio at the CCSD(T)(F12C)/cc-pVTZ-F12 level as a function of the hydrogen-bond length r(Z⋯H), where Z is the H-bond acceptor atom of B.

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