.hist file

The .hist file is an OptiStruct ASCII format results file.

File Creation

This file is created when an optimization is performed. Creation of this file is controlled by the I/O Option DESHIS.

File Contents

This file contains the iteration history of the objective function, maximum constrain violation, design variables, DRESP1 type responses, and DRESP2 type responses. Contents of this file are controlled by the I/O Option HISOUT.

File Format

The section outlines the format of the .hist OptiStruct ASCII file.

The file uses the following format:
iteration Objective Max_Const_Violation Design_variables DRESP1s DESP2s
Data
Description
iteration
Iteration number.
Objective
The value of the objective function.
Max_Const_Violation
Maximum constraint violation in %.
Design_variables
Value of the design variables. Each design variable is given its own column.
DRESP1s
The value of the DRESP1s. Each DRESP1 type response is given its own column.
DRESP2s
The value of the DRESP2s. Each DRESP2 type response is given its own column.

Comments

  1. The value of each design variable, DRESP1 response and DRESP2 response, is provided in its own column.