Research of a Passive Safety Device to Increase the Reliability and Safety of Transport Processes During Logistics Transportation

Abstract

The current problem of increasing the safety of operation of freight vehicles and trailers is considered, associated with the need for timely detection of wheel malfunctions during movement. In particular, a particular danger is the blocking or jamming of trailer wheels, which can lead to deterioration of vehicle controllability, increased braking distance, intensive tire wear, increased fuel consumption and the occurrence of emergency situations. In the conditions of modern transport, where reliability, efficiency and safety are important, the issue of monitoring the technical condition of the chassis becomes particularly relevant.

A description of the device design and the principle of its operation are given. The proposed design allows you to quickly determine the fact of rotation or locking of the wheels, and also contributes to a better perception of the dimensions of the trailer, which is especially important when maneuvering in limited conditions and reversing. The device provides the ability to visually monitor the condition of the wheels during braking, which allows you to respond in a timely manner to the occurrence of dangerous situations. The main attention is paid to the study of the strength and stiffness of the key element - the rod, which operates under conditions of variable and cyclic loads. Calculations were made taking into account operational factors, in particular vibration, shock and aerodynamic effects. The analysis showed that the equivalent stresses and tangential stresses do not exceed the permissible values, which indicates a sufficient margin of strength, stiffness and durability of the structure during long-term operation.

Thus, the developed device is an effective, simple and economically feasible means of increasing the safety of freight vehicles and trailers. Its implementation allows to reduce the risk of dangerous situations on the road, increase the driver's awareness of the technical condition of the wheels, improve the conditions for driving the vehicle and reduce operating costs.