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Use of CAD system to determine the stability of machines and devices under static and quasi-static load

Dudek Marek

Mining Machines

2025

vol. 43

79--91

For the conformity assessment process, the manufacturer is required to determine the stability of the machine/device, for issuing the declaration of conformity. The manufacturer should determine the stability of the machine/device already at the designing stage. Also, the users of older machines, must assess their safety in terms of stability and, if necessary, implement safety measures. The process of determining the stability of machines and devices under static and quasi-static load, using computer techniques is presented. A method of automating the calculation of stability assessment using a CAD software (Autodesk AutoCAD) and text editor (Microsoft Word) is discussed. The methodological assumptions of the problem are presented, and the developed solution is given. Automatically generated report (DOCX file), from stability assessment process of selected machine/device, containing both the input data and the results of the simulations and stability calculations are the final output of the developed tool. The database of the tool can be easily expanded by new classes of machines/devices. The computer tool was developed in English, which additionally increases its accessibility. Described method was used to calculate the longitudinal and transverse stability of the transportation platform transporting the longwall powered roof support. The example shows determination of limit angles of loss of stability, both for longitudinal and transverse inclinations. Developed software can be used by the following groups: students, manufacturers/designers of machines/devices and professionals involved in conformity assessment process