Structure and calculations of the test stand for piston hydraulic cylinder trials Alexander Rybak, Besarion Meskhi, Dmitry Rudoy, Anastasiya Olshevskaya, Alexey Pelipenko, Yuliya Serdyukova, Svetlana Teplyakova, Ivan Ovchinikov and Alexey Prutskov E3S Web Conf., 583 (2024) 03015 Published online: 25 October 2024 DOI: 10.1051/e3sconf/202458303015