Ngày nhận bài: 13-06-2025 / Ngày duyệt đăng: 17-06-2026 / Ngày xuất bản: 27-08-2026
In Vietnam’s local markets, motorcycles are widely used for transporting agricultural products. During transportation, it is desirable to determine the load of the products without unloading them from the vehicle in order to avoid product deterioration and improve handling efficiency. However, vehicle motion induces dynamic loads that may affect weighing accuracy. This study investigated the effect of vehicle speed on the dynamic load of a motorcycle used for agricultural product transportation. A four-degree-of-freedom oscillation model of the motorcycle was developed and analyzed in MATLAB/Simulink. Simulations were carried out for operating speeds ranging from 3 to 25 km/h under road conditions representative of local markets in Vietnam. The results show that dynamic load increases with vehicle speed and is strongly influenced by road surface irregularities. The findings provide a basis for improving the accuracy of on-vehicle weighing systems for agricultural products and support the development of locally manufactured weighing equipment for agricultural logistics applications.
