Bicycle Safety Mechanism Design

Cycling is the use of bicycles for sport, recreation or even transport purposes. Cycling has brought significant long term health benefits to the cyclists. As cycling is getting more popular, there have been a surging number of cyclists globally in recent years. However, cycling does possess a certain kind of risk to the rider. From the extensive literature studies, it has been found that cycling can result in traumatic injuries due to the upper extremities injuries. For instance: skull fractured, brain damage and shoulder fractured. Lower extremities including knee injury, hip injury are relatively less fatal. Despite there are many safety precautions that have been suggested by experts like wearing a helmet, glove and knee pad, it was found in research that more solutions are needed to further reduce the risk of bicycling injuries. The aim of this research is to identify the common part of bicycle frame damage and design a safety mechanism to reduce the damage and ultimately reduce cyclist’s injury. It has been noticed that there are many studies showing that the part of the bike frame that usually incur damage is located at the bicycle fork. Thus, the linear static analysis on the bicycle fork was done to identify the critical point of a normal bicycle fork damage using Ansys software. It was found that the critical point was located at the junction where fork blades attach with the steerer tube. Moreover, a safety mechanism is going to be designed using Solidworks software and simulate through finite element analysis. The damage result of the fork with safety mechanism will then be compared with the original fork results. This report shows how the designed safety mechanism reduces the bicycle fork damage. The safety mechanism that is designed to the fork is expected to give extra support to the fork blades therefore at least 50% of safety factor improvement on the critical point of the bicycle fork.