dihedral_style_harmonic.txt
b93436e48b86lammm-devel

dihedral_style_harmonic.txt
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			"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c

			:link(lws,http://lammps.sandia.gov)
			:link(ld,Manual.html)
			:link(lc,Section_commands.html#comm)

			:line

			dihedral_style harmonic command :h3

			[Syntax:]

			dihedral_style harmonic :pre

			[Examples:]

			dihedral_style harmonic
			dihedral_coeff 1 80.0 1 2 :pre

			[Description:]

			The {harmonic} dihedral style uses the potential

			:c,image(Eqs/dihedral_harmonic.jpg)

			The following coefficients must be defined for each dihedral type via the
			"dihedral_coeff"_dihedral_coeff.html command as in the example above, or in
			the data file or restart files read by the "read_data"_read_data.html
			or "read_restart"_read_restart.html commands:

			K (energy)
			d (+1 or -1)
			n (integer >= 0) :ul

			[Restrictions:]

			Dihedral styles can only be set for atom styles that allow dihedrals to be
			defined.

			This dihedral style is part of the "molecular" package. It is only
			enabled if LAMMPS was built with that package. See the "Making
			LAMMPS"_Section_start.html#2_2 section for more info.

			[Related commands:]

			"dihedral_coeff"_dihedral_coeff.html

			[Default:] none