Design Of Helmet Research Articles

Design, optimization and additive manufacturing of an innovative bike helmet using auxetic metastructures

Design, optimization and additive manufacturing of an innovative bike helmet using auxetic metastructures

Study of Design and Analysis of Motorcycle Helmet

Each year, nearly 900 individuals perish from head injuries, and over 50,000 sustain severe injuries due to the absence of helmets. This paper reviews various approaches for the conceptual design of a motorcycle helmet aimed at enhancing structural comfort, visibility, and safety, while also considering adjustable interior form to accommodate the rider's ergonomics. The use of a new material called Fiberglass Reinforced Plastic (FRP) is also explored. The analysis involves the use of the simulation software ANSYS to evaluate the helmet. A maximum force of 150 N is applied to the helmet to assess its performance under static and dynamic conditions. The simulation focuses on parameters such as total deformation, strain energy, and von-Mises stress across different scenarios in static conditions

Smart Helmet with A Head-Mounted Display, Solar Panel, and Natural Language Processing

In order to combat this problem, people don't usually wear helmets when riding a bike. However, in addition to serving as a safety device, helmets can also be used for much more. This will benefit the rider in many ways, including making the most of their time while riding, arriving at their destination efficiently, and riding safely by being aware of the most likely road conditions. The design of the smart helmet presented in this paper aims to achieve the aforementioned characteristics. It will do so by employing an Arduino UNO and HC-05 Bluetooth Module for a direct helmet-to-mobile connection, as well as speech inputs and speech outputs for more convenient communication with the helmet through Natural Language Processing (NLP) and a Heads-Up Display (HUD) for more detailed display output to the rider without diverting their attention from the traffic scene.

Design of a Drowsiness Prevention Helmet with Vibration and IoT-Based Theft Detection Alarms

Ensuring safety while riding a motorbike is an imperative task. Currently, safety products such as helmets have the capability to provide protection to users without the additional feature of issuing warnings. Consequently, a preemptive alert system is developed to offer timely notifications to drivers. The experimental setup involves the utilization of a Max30100 sensor that is linked to a microcontroller and integrated into a helmet. The objective of this final project is to offer a timely alert to the rider and utilize the Max30100 sensor for pulse detection in order to ascertain the normalcy of the rider's pulse. In instances where the rider encounters tiredness and fatigue, it is common for the pulse intensity to exhibit a reduction. The Blynk application presents the detection pulse findings on the smartphone screen, while the buzzer on the helmet will activate in response to vibrations and sounds once the pulse has diminished. Based on testing, the average pulse rate on quiet road conditions is 78.58 BPM. On busy road conditions, the average pulse rate is 73.25 BPM. While in traffic conditions, the average pulse rate is 73.5 BPM. The helmet theft detector uses a Sharp GP2Y0A21 sensor that can only detect object distances up to 10 cm.

Multimodal Interactive Evaluation and Optimization Design of Intelligent Helmet

Multimodal Interactive Evaluation and Optimization Design of Intelligent Helmet

PERANCANGAN HELM PROYEK DENGAN METODE INJECTION MOLDING PLASTIK MENGGUNAKAN CAD

Design of a helmet mold project with an injection molding process to provide a simulated picture of a product. The helmet design that will be realized is made of polymer material with an injection molding machine as the main tool. The use of the machine so that time efficiency becomes faster, the mold designed is only in the form of a core and cavity. The software used is Autodesk Inventor 2017 with HDPE (high density polyethylene) material. Making a futuristic helmet product design requires a design style that offers a modern, unique and unusual appearance. The purpose of this design is to be able to design project helmets that are more modern than before. The method used for the design of this project helmet is a simulation of fill analysis, fill time, confidence of fill, quality prediction to show the level of quality of the injection results. The test results of the fill time takes 11.67 seconds, the confidence of the filling capability is 100% filled, and the quality prediction of the product quality is very good 82.1%.

Helmet Stick Design for BC3 Paramlympic Bocia Games

Boccia is one of the fastest-growing Paralympic sports and one of the few sports to have an Olympic rival. The BC3 boccia class is intended for athletes with locomotor dysfunction so severe in all four extremities that they require assistance from assistants and aids in the form of ramps and helmets equipped with pointer sticks. Therefore, the design of the BC3 boccia stick helmet was carried out to meet the needs of the athletes. The design was carried out by action research methodology with the concept of design, static simulation, manufacturing, and the house of quality. The design is divided into three main parts: the helmet bracket, shaft, and lock with bearings using M4 and M8 bolts. Static and design simulations used Fusion 360 and Ansys 2021 R2 software to determine design strength value. Stainless steel material is used in the design, considering the material selection using the Ashby diagram method. The maximum displacement value produced by design is 0.006 mm, and the minimum safety factor is 9.15. The manufacturing results produced helmet products with adequate accuracy and safety standards. A house of quality (HOQ) of 39% indicates that it can meet consumer needs better than other products.

Perceived domains that could improve helmet wearing behaviour in two-wheeler riders: a cross sectional study among internet users residing in Tamil Nadu

Background: Road traffic accidents are major cause of morbidity and mortality. Correct helmet use can reduce fatal injuries of head and neck and death. The purpose of the study is to assess the knowledge, attitude and practice towards helmet wearing and to assess the barriers and facilitators of helmet wearing practice among internet users.Methods: An observational cross-sectional study was carried out among Internet users who rode motorcycle between August 1, 2020 to October 1, 2020. A pretested semi-structured online questionnaire was used to collect data for the study. The collected data was entered into Microsoft Excel Version 2019 and was analysed using SPSS version 26.Results: 29.9% had poor knowledge regarding helmets followed by 64.5% with moderate knowledge. 5.6% had good knowledge. With regard to attitude, only 5.5% had poor attitude while 66.4% and 27.9% had moderate and good attitude, respectively. Domains perceived by the participants influencing the helmet wearing behaviour included comfort (52.2%), legislative measures (38.5%), awareness (34.4%), design and quality of helmet (27.4%), cosmetic disadvantage (17.1%) and infrastructure (16.7%).Conclusions: Improving the knowledge and attitude among the participants would aid in promoting helmet wearing behaviour. Improving the comfortability while wearing helmet, more strict enforcement of laws for helmet wearing along with increasing the severity of them and increasing awareness through various means were the three most listed domains that could improve helmet wearing among two-wheeler riders.

Design and Development of Smart and Safe Helmet for Inhibiting COVID-19 Virus Infection: A Simple Idea for Solving the Big Crisis

Abstract: The coronavirus disease 2019 (COVID-19) has recently spread worldwide due to the SARS-CoV-2 virus and has been declared a pandemic. A possible solution to prevent or restrict the spread of the COVID-19 pandemic is proposed in this article. Uncontrolled spread of the virus through breathing is a major concern. It is ideal if the entry of the virus inside the human body is restricted, as prevention is better than cure. Use of a “Smart-HELMET” that allows uncontaminated air (virus/bacteria/microbes-free) to breathe is proposed. The design of the Smart-HELMET, its working mechanism, the chemistry and biology of the virus-cell interaction inside a human body are discussed in detail. The proposed ‘Smart-HELMET’ prevents the spread of any respiratory illness through breathing. This is the need of the hour until a medicine/vaccine is made available in in vivo condition.

Design and Analysis of Motor Cycle Helmet for Improved Safety

Road accidents are one of the most common and unavoidable problems in our society which costs our precious lives. Helmets of poor quality only give the lack of security, so helmets with more improvised design become the priority for two-wheelers. Our paper aims to design and prototype safety helmets for motorcycles with innovative design, which facilitates the user to wear it more comfortably. In addition to that, we analyze the improved design and optimize it. As safety is the primary criterion for the customers, we aim to produce the helmets by additive manufacturing with a customized design enabling ventilation, lightweight and increased stiffness. Additive manufacturing helps to fabricate complex designs with a combination of different materials. We will incorporate a mechanism that does not allow the two-wheeler to unlock unless the rider has a helmet. The outer casing would be durable and protect the user against impact. We have also planned to integrate the technology, which gives SOS signals to the nearby hospitals when the vehicle undergoes an accident. This is done by incorporating accelerometers in the helmet, so once the value reaches a certain limit, the emergency message is sent. By conventional manufacturing technologies, making customized helmet is very difficult. But, on the other hand, additive manufacturing facilitates fabricating complex design, which can have integrated sensors for safety purposes. Impact test analysis and airflow analysis will be performed on the helmet to validate the design. Therefore, in this paper, we are going to design and analyze the helmet with improved safety. Keywords: Helmet, motorcycle, optimization, safety, Fusion 360, Ansys, Arduino, 3D printing.

Design and Fabrication of Natural Helmet

Design and Fabrication of Natural Helmet

Component design of foldable helmet for motorcycle usage: Strength analysis under static loading

A helmet is used to protect the head of motorcycle rider especially when an accident happens by absorbing the impact/crash load. In Indonesia, wearing a helmet when riding a motorcycle is obligated by the constitution. Hence, in line with the quick growth of online motorbike and taxi service, carrying a personal helmet has become a common need. Yet, it becomes troublesome to carry and store the helmet due to its big size. This paper introduces a primary design idea of a foldable helmet for motorcycle rider by fulfilling the safety standard of SNI (Indonesian National Standard). The proposed helmet uses hinge components that allow the folding mechanism. Strength analysis of the hinge-pin lock system is discussed in this paper. From the result, it was confirmed that the foldable helmet could withstand a loading requirement of 3000 N at the joint system (hinge) as required by SNI. The proposed folding mechanism can reduce a helmet volume up to 50% smaller than the non-foldable one. Furthermore, this study is expected to give contribution to the engineering product design.

Design of Intelligent Firefighter Helmet Based on AR Technology

Traditional firefighter helmet has the disadvantages of poor shading and lack of flexibility. AR is the process of computing 3d coordinate points according to the image points of real objects, and then superimposing “virtual + real” surreal scenes based on real scenery through the calculation simulation of the processor. The AR firefighter helmet is a new type of firefighting protective that uses AR technology in traditional firefighter helmet. Intelligent firefighter helmet based on AR technology uses 3D simulation imaging technology, thermal camera tracking technology, human-computer interaction technology, and code recognition technology to maximize the effect of realistic fire scenes. It can enable firefighters to see the real situation in the scene of heavy smoke and improve the efficiency of rescue. Therefore, firefighter helmets with AR equipment represent the future development trend of firefighter helmet. This paper discusses the theory, value, technical operation, design and development of intelligence. The research on the fireman’s helmet based on augmented reality technology has leading advantages and application value.

Designing a compact helmet for a motorcycle

The paper considers the issues of increasing the passive safety of motor vehicles. The designs of modern helmets are shown, the positive and negative sides are considered, and the systems of their certification are considered. Aspects of creating compact helmets and a conceptual folding helmet are discussed. The design of a folding helmet, the material for making it, is proposed.

Effect of uncompensable heat from the wildland firefighter helmet

Heat accumulation from wearing personal protective equipment can result in the development of heat-related illnesses. This study aimed to investigate factors of heat stress with and without a US standard issue wildland firefighter helmet. Ten male subjects finished a 90-min exercise protocol in a heat chamber (35°C and 30% relative humidity), with standard issue meta-aramid shirt and pants and a cotton t-shirt, and either with or without a wildland firefighter helmet. A randomised crossover design was implemented, with a minimum 2-week washout period. Heart rate, physiologic strain index, perceived head heat, head heat and skin blood flow of the head and neck were measured. At the conclusion of the 90-min trial, heart rate, physiological strain index, core temperature, rating of perceived exertion and perceived head heat showed a main effect of time (P < 0.05). Perceived head heat and head heat exhibited a main effect of trial (P < 0.05). The change in physiologic strain was positively correlated with the change in skin blood flow of the head (r = 0.72, P = 0.02). These data suggest that the current wildland firefighter helmet contributes to heat accumulation. The design of the wildland firefighter helmet lacks ventilation, which, from these data, may result in metabolic alterations and perceived discomfort.

Composite design and thermal comfort evaluation of safety helmet with phase change materials cooling

Higher temperature and humidity will adversely affect the thermal comfort of helmet users. In order to improve the comfort level of the helmet and obtain an optimal cooling helmet model, four kinds of helmet models were established by using phase change material, heat-absorbing cooling technology, and fan cooling technology. Through the air conditioning system, the working states of four kinds of helmet models in the thermal environment of 30 ? were simulated, and the thermal comfort of four kinds of helmet models was evaluated. The results show that: high temperature environment is an important factor affecting the cooling effect of fan helmet fan, Under high temperature environment, the helmet with fan cooling technology has a certain cooling effect in the early stage, but after 30 minutes, the cooling effect becomes worse and worse. Under high temperature environment, phase change materials safety helmet has a good cooling effect, but poor ventilation results in the excreted sweat clinging to the scalp and hair, resulting in a poor user experience. There are defects in using phase change material heat absorption cooling technology or fan cooling technology alone. The helmet combines phase change material heat absorption cooling technology with fan cooling technology, so that the cooling effect and internal thermal environment stability of the helmet are the best, and the thermal sensation of human body is the best. Therefore, the helmet is an optimal design model.

Design And Implementation Of Smart Helmet Using IoT

Now a days road accidents are occurring very frequently in our daily life because motor cyclists are not wearing of helmet. To Avoid those road accidents motor cyclists can have to wear helmet. By Wearing it riders can have to save their life up to some instant. This Project is to improve the safety of riders. The design of this smart helmet is to detect the user can wear helmet or not. Not only but also the helmet can detect the user is alcoholic or not. If user is alcoholic the ignition gets OFF. Only the ignition gets ON when user can wear helmet and user is not alcoholic .Even user met with an accident by using GPS and GSM the location can share to contact members .By using IOT the data of user can send to cloud for monitoring of activities like wearing of helmet, alcoholic and accident condition.

Design and development of crash helmet from Musa-Paradisiaca’s fiber as a reinforced composite

Abstract This research aimed at developing crash helmet from musa-paradisiaca’s (plantain) fiber (MPF) as a reinforced composite material which tends to remedy the problem of heavy weight conventional metallic materials. The helmet was produced by hand lay-up method using plaster of Paris as the mould. The fiber used was extracted from a plantain pseudo-stem which was harvested in a local plantation and polyester resin was used as the matrix which was infused to reinforce the composite. Finite Element Analysis (FEA) was used to simulate the performance of the helmet developed. It was observed from the experiment that the plantain fibers reinforced with polyester composite exhibited superior properties which is a good alternative for the conventional materials.

Experimental investigation on the thermal and moisture mapping of cricket helmets using microsensor technology

Based on microsensor technology, a novel test rig was developed for the first time to measure real-time multi-point temperatures and relative humidities inside a cricket helmet worn by a human subject for obtaining the corresponding thermal and moisture mapping. Two types of helmets with and without ventilation openings were investigated to visualise the hot and wet spots clearly inside the helmet. The results show the clear influence of ventilation openings on effective reduction of the temperature as well as the relative humidity inside the helmet. Also, the subjective data were linked to the digital temperature and relative humidity measurements for possible assisting design of helmet with improved thermal comfort. The technology developed is a useful measurement approach to other head gears such as safety, fire fighter and motorcycle helmets, and further to study microclimate environments in close contact with human body.

Subject-Specific, Non-Invasive Helmet-Restraint RF Coil for Awake, Non-Human Primate MR Imaging

The purpose of this study was to develop a non-invasive restraint helmet integrated with an radio frequency (RF) coil for awake-behaving non-human primate MR imaging. To prevent image-corrupting motion, the head needs to be immobilized, which is currently achieved via invasive surgical headpost implants. In this work, an RF coil holder was integrated into the design of a subject-specific helmet to place the coil in closest distance to the head for improved signal-to-noise ratio (SNR). Additive manufacturing was used to print the helmet based upon computed tomography images of the subject. A single channel transmit/receive loop coil was designed using electromagnetic simulations loaded with a voxel-based monkey head model. The Rhesus macaque used in this study underwent behavioral training based on positive reinforcement before engaging in MR imaging. Imaging was performed using the helmet coil, which was successful in immobilizing the macaque head in an awake, unanesthetized subject. Results showed improved SNR by approximately 30% compared to a loop coil used with an implanted head post, and minimal motion artifact in structural imaging. The non-invasive helmet coil eliminates the need for permanently implanting monkeys with a headpost, provides the necessary head immobilization, and allows the use of more subjects for neuroimaging studies.