ABSTRACT Most of Indonesia's territory is water, so sea transportation plays an important role in people's lives. This transportation is a ship. Ships function as a service for transporting goods and passengers. In addition, ships are also often used in industry, mining and trade. This has resulted in increasing ship production every year. Along with the increase in ship production, the need f…
ABSTRAC ABSTRACABSTRAC T This study aims to evaluate the oxidation stability and tribological characteristics of palm oil-based Trimethylolpropane (TMP) synthetic ester (Palm Methyl Ester (PME)) as a bio-lubricant. The synthesis process was carried out through two-stage transesterification using Trimethylolpropane (TMP) as reactant and sodium methoxide as catalyst, with variations in reaction …
ABSTRACT This study focuses on the design and manufacture of a three-wheeled motorcycle chassis using the Design For Manufacture (DFM) method approach. DFM is a method used to design products by considering ease and efficiency in the manufacturing process. In this study, the DFM approach aims to optimize the chassis design so that the manufacturing process becomes simpler, faster, and lower pr…
ABSTRACT A three-wheeled motorcycle is a type of transportation used to support human activities and transport goods, developed as an adaptation of the two-wheeled motorcycle. The transmission system functions to transfer the engine's rotational power to the wheels, allowing the vehicle to operate as intended. The transmission system must be designed properly to avoid issues during operation. …
ABSTRACT Lubrication is used to reduce friction so that the surface of the object does not wear out. Currently, the raw material for making lubricants is mineral oil. The continuous use of mineral oil will have a negative impact on the environment because it is toxic and non-biodegradable. Therefore, renewable lubricants that are safe for the environment are needed, namely, biolubricants. Biol…
ABSTACK Lubrication is an attempt to reduce friction between two adjacent surfaces. Lubricants are usually petroleum-based, which are non-renewable and difficult to biodegrade. Alternatively, vegetable oils such as palm oil can be used as they are a renewable energy source. However, pure palm oil has a low oxidation stability so it cannot be directly used as a lubricant. Oxidation stabilit…
ABSTRACT Three-wheeled motorcycles are essential transportation for commercial activities, especially in hard-to-reach areas. Modifying two-wheeled motorcycles into three-wheeled ones requires an efficient and easy-to-assemble frame design. This study applies the Design For Assembly (DFA) method to simplify the design and improve assembly efficiency. The results show that the theoretical ass…
ABSTRACT This study aims to design and analyze the structural strength of a weighbridge using the finite element method. A weighbridge is a device composed of various components arranged to measure the weight of vehicles, ranging from light vehicles to heavy vehicles, either unloaded or loaded. The weighbridge consists of several main components, one of which is the frame. The frame uses W…
ABSTRACT This study aims to develop and test a fixed-wing unmanned aerial vehicle (UAV) with multirole capabilities. The UAV is designed to perform various missions, such as mapping, monitoring, and payload dropping, with a focus on analyzing flight performance and evaluating the propulsion system. The research process includes UAV design, prototype development, and flight performance testing,…
ABSTRACT This research aims to design and analyze the structural strength of a rigid frame for a 1:10 scale motor grader using the Pahl and Beitz method. A motor grader is a vital piece of equipment in the construction industry, primarily used for leveling soil surfaces. One of its key components is the frame, which plays a critical role in ensuring the grader's performance and operational…
ABSTRACT A motor grader is a type of tractor with a drive in the form of a tire wheel that uses a blade whose slope can be adjusted to level the land surface, as well as to form the road body (leveling and grading) which is usually used in road projects to create a certain slope of a road section. This research aims to design and manufacture a motor grader with a steering and traveler moti…
ABSTRACT Heavy equipment is designed to facilitate human work that has a large enough scale, where this type of work is closely related to the soil. The types of work carried out by heavy equipment include land cultivators, soil diggers, transporters, movers, compactors, and final placement (finishing). The motor grader itself is included in the category of heavy equipment with a type of soil …
ABSTRACT Fixed wing UAV is a type of unmanned aircraft that has fixed wings to its body. The fixed wing UAV designed by the Riau University Flying Robot Team previously had weaknesses and was inefficient in various situations. To improve efficiency and high responsiveness in complex situations, this study will design a fixed wing UAV that is capable of carrying out multirole missions with …
ABSTRACT Motor grader is a heavy equipment that has the function of leveling and forming surfaces, peeling soil, spreading light materials, etc. The motor grader's driving tool is the tire wheel located behind the body. In order to understand the movement of the motor grader, it is not possible for us to make it like the original. Therefore, researchers will design a transmission system to dri…
ABSTRACT The global energy crisis has become a major concern in recent times. The world's dependence on fossil fuels causes serious environmental problems such as global warming and air pollution. Vortex turbines are a tool used to convert natural energy potential into renewable energy. One part of a vortex turbine is the basin. Basins are basins that have the function of regulating flow …
ABSTRACT Acoustics is the study of sound including its production, transmission and effects. Sound is the result of the vibration of objects in the form of an analog signal with amplitude that can change continuously with time and propagate through the air. Pipes and piping systems are very important in industry as they play a vital role in regulating fluid flow from one location to another ef…
ABSTRACT Piping system is one of the important components commonly used to move fluid between one equipment to another equipment to pass certain processes or flow fluid between one plant to another plant which usually passes through several areas. Damage to the piping system can cause personal injury, facility damage, environmental damage, and economic loss. Several factors cause damage to pip…
ABSTRACT Aluminium is widely used in everyday applications, including beverage cans and automotive components. The increasing use of aluminium correlates with increasing amounts of waste if not managed properly. Metal casting is one solution for waste processing. The pouring temperature in metal casting greatly influences the final result. This research aims to investigate the impact of castin…
ABSTRACT Used cooking oil is oil that has been used in the frying process. Consumption of used cooking oil has a negative impact on human health, in addition to improper disposal of used cooking oil resulting in environmental pollution. One way to overcome this waste is by processing it into wax material for investment casting patterns by adding chemicals in the form of stearin. This study aim…
ABSTRACT The development of a generator set for the electricity needs of street vendors is an effort to provide solutions to limited electricity access in certain locations. Street vendors often face challenges in providing sufficient electrical power for lighting and operating electronic devices. This study aims to design a generator set based on free energy that is efficient, reliable, and e…