Building Flex Body Models - Kxcad.net

More documents

Recommendations

Info

32 Adams/Flex • If all invariants except 5 and 9 exist in the modal neutral file (MNF), and mesh coarsening has been performed, the matrices INVAR5 and INVAR9 cannot be created and may not appear in the matrix file. • If the flexible body has a preload, the file will contain an additional PRELOAD matrix. • If the flexible body has modal loads defined, the file will contain an additional MODLOAD matrix. • If the flexible body has a generalized damping matrix specified, the file contains an additional GENDAMP matrix. As you can see, there can be as few as 12 or as many as 17 matrices, currently. The 14 standard matrices list the selected modes and nodes, invariants, and pertinent segments of the mode shapes. The 14 matrices are: • GENSTIFF • INVAR1 • INVAR2 • INVAR3 • INVAR4 • INVAR5 • INVAR6 • INVAR7 • INVAR8 • INVAR9 • T_MODE • R_MODE • SELNOD • SELMOD The following shows the first part of a matrix file. The end of the matrix file that is not shown contains matrix data. You generate a matrix file by translating an MNF file. You use the translator available through the . The matrix file is in AdamsMAT format, and you should only create it using the translator. For information on creating an MNF, see Translating FE Model Data. For information on using the Adams/Flex toolkit, see Translating an MNF into a Matrix File.
Matrix File Writing Flexible Body Statements Building Flex Body Models You need to create several statements in your dataset: FLEX_BODY, MARKER, and MATRIX, as explained in the next sections below.Example dataset contains an example of a dataset containing the necessary statements. You can copy the text of the dataset to a text editor so you can use it as a start to your dataset. • Creating the FLEX_BODY Statement • Creating MARKER Statements • Creating the MATRIX Statement Example Dataset Containing Flexible Body Statements FLEX_BODY/1 , MATRICES = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 , INVARIANTS = T:T:T:T:T:T:T:T:F , CRATIO = USER(.01,100,.1,500,1) ! MARKER/39 , FLEX_BODY = 1 , NODE_ID = 21 ! MARKER/40 , FLEX_BODY = 1 33
Page 1 and 2: Building Flex Body Models Building
Page 3 and 4: Building Flex Body Models • To se
Page 5 and 6: Flexible Connector Limitations in A
Page 7 and 8: Creating Massless Links Manually Bu
Page 9 and 10: Building Flex Body Models Adams/Vie
Page 11 and 12: Building Flex Body Models Replacing
Page 13 and 14: 2. From the Build menu, point to Fl
Page 15 and 16: Building Flex Body Models and Node
Page 17 and 18: • Icon size • Exact position in
Page 19 and 20: Aligning Replacement Body Building
Page 21 and 22: Building Flex Body Models applicati
Page 23 and 24: Verifying Flexible Bodies Building
Page 25 and 26: Building Flex Body Models To use th
Page 27: Steps in Using Adams/Solver and Ada
Page 31 and 32: Building Flex Body Models Note: Inc

Building Flex Body Models - Kxcad.net

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?