HyperMesh载荷集解释-RADIOSS (Bulk Data Format)- OptiStruct

Load Collectors   RADIOSS (Bulk Data Format), OptiStruct Specific load collectors are used for specialized loading cards, such as EIGRL, SPCADD, GRAV, RLOAD, DTABLEi, etc. Specific load collectors have card images, which can be edited to do the following: ? Group other load collectors together for simultaneous application in a single subcase. ? Provide special information for a specific analysis type (such as modal analysis, or frequency response analysis).     General boundary conditions, listed above, should not be collected into specific load collectors.  Organizing loads and constraints into a specific load collector may result in an error termination. The following is a list of RADIOSS (Bulk Data Format), OptiStruct cards, which are represented as Specific load collectors. Supported Cards Solver Description Supported Parameters HyperMesh Notes CMSMETH Defines the method, frequency upper limit, and number of modes to be used in component mode synthesis for flexibly-body preparation solution sequence. DLOAD Defines a dynamic loading condition for frequency response problems as a linear combination of load sets defined via RLOAD1 and RLOAD2 entries, or for transient problems as a linear combination of load sets defined via TLOAD1 and TLOAD2 entries. EIGRL Defines data needed to perform real eigenvalue analysis (vibration or buckling) with the Lanczos Method. FATDEF Defines elements, and associated fatigue properties, for consideration in a fatigue analysis. FATEVNT Defines loading events for fatigue analysis. FATLOAD Defines fatigue loading parameters. FATPARM Defines fatigue analysis parameters. FATSEQ Defines a loading sequence for fatigue analysis. FREQ Defines a set of frequencies to be used in the solution of frequency response problems. FREQ1 Defines a set of frequencies to be used in the solution of frequency response problems by specification of a starting frequency, frequency increment, and the number of increments desired. FREQ2 Alternative form of frequency list. Defines a set of frequencies to be used in the solution of frequency response problems by specification of a starting frequency, final frequency, and the number of logarithmic increments desired. FREQ3 Frequency List, Alternate Form 3. Defines a set of frequencies for the modal method of frequency response analysis by specifying the number of frequencies between modal frequencies. FREQ4 Frequency List, Alternate Form 4. Defines a set of frequencies for the modal method of frequency response analysis by specifying the amount of "spread" around each modal frequency and the number of equally spaced frequencies within the spread. FREQ5 Frequency List, Alternate Form 5. Defines a set of frequencies for the modal method of frequency response analysis by specification of a frequency range and fractions of the natural frequencies within that range. GRAV Defines the gravity vectors for use in determining gravity loading for the structural model. INVELB Defines initial velocity in a multi-body situation. LOAD Defines a static load as a linear combination of load sets defined via FORCE, MOMENT, FORCE1, MOMENT1, PLOAD, PLOAD1, PLOAD2, PLOAD4, RFORCE, and GRAV entries. MBACT Defines the entity/set to be activated in the multi-body system for the subsequent simulation. Represented in HyperMesh as a specific load collector. MBDEACT Defines the entity/set to be deactivated in the multi-body system for the subsequent simulation. Represented in HyperMesh as a specific load collector. MBLIN Defines the parameters for a multi-body system linear analysis. MBSEQ Defines the simulation sequence for the multi-body solver. MBSIM Defines the parameters for a multi-body simulation. MBSIMP Parameters for subsequent multi-body simulation. Represented in HyperMesh as a specific load collector. MLOAD Defines a multi-body as a linear combination of load sets defined via GRAV, MBFRC, MBFRCC, MBFRCE, MBMNT, MBMNTC, MBMNTE, MBSFRC, MBSFRCC, MBSFRCE, MBSMNT, MBSMNTC, MBSMNTE. MOTION Defines a multi-body as a combination of motion sets defined via MOTNJ, MOTNJC, MOTNJE, MOTNG, MOTNGC, MOTNGE MPCADD Multi-point constraint set combination. NLPARM Defines parameters for nonlinear static analysis iteration strategy. PFAT Defines element properties for fatigue analysis RFORCE Defines a static loading condition due to a centrifugal force field. RLOAD1 Defines a frequency-dependent dynamic load of the form for use in frequency response problems. RLOAD2 Defines a frequency-dependent dynamic load of the form: for use in frequency response problems. SOLVTYP Defines the solver to be used for static analysis. Represented in HyperMesh as a specific load collector. SPCADD Single-point constraint set combination. TABDMP1 Defines modal damping as a tabular function of natural frequency. TABLED1 Defines a tabular function for use in generating frequency-dependent and time-dependent dynamic loads. TABLED2 Dynamic Load Tabular Function, Form 2. Defines a tabular function for use in generating frequency-dependent and time-dependent dynamic loads. Also contains parametric data for use with the table. TABLED3 Dynamic Load Tabular Function, Form 3. Defines a tabular function for use in generating frequency-dependent and time-dependent dynamic loads. Also contains parametric data for use with the table. TABLED4 Dynamic Load Tabular Function, Form 4.Defines the coefficients of a power series for use in generating frequency-dependent and time-dependent dynamic loads. Also contains parametric data for use with the table. TABLEFAT Defines y values of each point on the loading time history. TABLEM1 Defines a tabular function for use in generating temperature-dependent material properties. TABLEM2 Material Property Table, Form 2. Defines a tabular function for use in generating temperature-dependent material properties. Also contains parametric data for use with the table. TABLEM3 Material Property Table, Form 3. Defines a tabular function for use in generating temperature-dependent material properties. Also contains parametric data for use with the table. TABLEM4 Material Property Table, Form 4. Defines coefficients of a power series for use in generating temperature-dependent material properties. Also contains parametric data for use with the table. TEMPD Defines a temperature value for all grid points of the structural model that have not been given a temperature on a TEMP entry. TLOAD1 Defines a time-dependent dynamic load or enforced motion of the form: for use in transient response analysis. TLOAD2 Defines a time-dependent dynamic excitation or enforced motion of the form: for use in a transient response problem, where TSTEP Defines time step intervals at which a solution will be generated and output in transient analysis.