force modify element_like beam

2. The BEAM statement implements a force in the same way the FIELD statementdoes, but the BEAM statement requires you to input only the values of the beam'sphysical properties, which Adams uses to calculate the matrix entries. For a forcerequest, the forces returned are the forces the J marker exerts upon the I marker.

3. The constitutive equations shown above define the forces and moments exerted on the I marker. These forces and moments are due to relative displacements andvelocities of the I marker with respect to the J marker. Because of force transfer,the reaction moments at the J marker are usually not the same as the appliedmoments at the I marker.

4. Normally, entity names are composed of alphabetic, numeric, or '_' (underscore) characters, and start with an alphabetic or '_' character. They may be any length. For more information, see Using Extended Names.

5. Normally, entity names are composed of alphabetic, numeric, or '_' (underscore) characters, and start with an alphabetic or '_' character. They may be any length. For more information, see Using Extended Names.

6. Specifies an integer used to identify this element in the Adams data file. When you use the FILE Adams_DATA_SET WRITE command, Adams View writes an Adams data file for your model. Adams requires that each modeling element be identified by a unique integer identifier. If you use this parameter to specify a non-zero identifier,Adams View will use it in the corresponding statement in the Adams data file. You may also enter zero as an identifier, either explicitly or by default. The next time you write an Adams file, Adams View will replace the zero with a unique, internallygenerated identifier. Adams View will permanently store this identifier with the element just as if you had entered it yourself. Normally, you would let all identifiers default to zero, and Adams View would generate the identifiers for you. You are never required to enter a non-zero identifier. You only need to specify it if, for some reason, you wish to control the Adams file output.

7. When an Adams Solver data file (.adm) is read into Adams View, all comments associated with a statement (from the end of the previous statement through the end of the current statement) are stored with the object. Comments in the data file can be associated with model. These comments must follow the title statement and be followed by the comment 'END OF MODEL COMMENTS'. This string must be uppercase. When an Adams Solver data file is written, the comments for an object are written before the statement corresponding to the object.

8. The y_shear_area_ratio is a correction factor for shear deflection in the y direction for Timeshenko beams. (Oden, J.T., and E. Ripperger. Mechanics of Elastic Structures, Second Edition, p. 351. New York: McGraw-Hill, 1981). This ratio is the area of the beam cross section divided by the area of the beam cross section that resists y-direction shear forces. If you want to neglect the deflection due toy-direction shear, set the ratio to zero.

9. z_shear_area_ratio is the correction factor for shear deflection in the z direction for Timeshenko beams. (Oden, J.T., and E. Ripperger. Mechanics of Elastic Structures, Second Edition, p. 351. New York: McGraw-Hill, 1981). This ratio is the area of the beam cross section divided by the area of the beam cross section that resists z-direction shear forces. If you want to neglect the deflection due to directionshear, set the ratio to zero.

10.  Specifies Young's modulus of elasticity for the beam material.

11.  Because the matrix_of_damping_terms matrix is symmetric, you need to specify only one-half of it. The following matrix shows the values to input: