Those with disabilities who have lost their legs must use a prosthesis to walk. However, traditional prostheses the disadvantage of being unable move and support human gait because there are no mechanisms or algorithms control them. This makes it difficult for wearer To overcome this problem, we developed an insole device wearable sensor real-time phase detection based on kNN (k-nearest neighbor) algorithm prosthetic control. The is used raw data obtained from pressure sensors in predict...

An alloy wheel is generally a symmetrically shaped part integral to vehicle because its weight and strength can improve driving performance. Therefore, design essential, novel method should be considered. Currently, the Multi-Additional Sampling Efficient Global Optimization (MAs-EGO) has been proposed widely implemented in various fields of engineering design. This study employed surrogate model maximize Expected Hypervolume Improvement (EHVI) for multi-objectives by increasing...

Following an arthroplasty, biomechanical evaluation of the knee joint is crucial because it plays a significant role in patient rehabilitation and physician follow-up. The sixty-two subjects, consisting 31 with normal knees who had undergone total evaluated kinetics joints during squatting using inverse dynamics analysis. Artificial intelligence based on XGBoost model was also used to predict data group squatting. result revealed that maximum force, moment, quadriceps force were higher than...

This study evaluates the distal femur morphology of Thai population using a three-dimensional (3D) measurement method, measuring distance between triangular point femoral 3D model. The model 360 obtained from 180 volunteers (90 males, 90 females; range 20–50 years, average 32.8 years) was created reverse engineering techniques computed tomography imaging data. Using identified landmark morphometric parameters evaluated included transepicondylar axis length (TEA), mediolateral (ML),...

This study evaluates the morphology of Thai proximal tibia based on three-dimensional (3D) models to design tibial component.The 3D 480 tibias were created using reverse engineering techniques from computed tomography imaging data obtained 240 volunteers (120 males, 120 females; range 20-50 years). Based measurements, a digital ruler was used measure distance between triangular points models. The morphometric parameters consisted mediolateral length (ML), anteroposterior width (AP), medial...

In Thailand, according to the bus accident statistics referred Department of Land Transport (DLT), highest risk represents frontal crash accidents. case crashworthiness, high- decker safety was regulation no.29 United Nations Economic Commission for Europe (ECE-R29). this study, impact analysis high-decker passenger structure based on ECE-R29 using Finite Element (FE) focused on. The energy absorption including total deformation cabin were evaluated. Three-dimensional FE model with- and...

The vehicle cornering behavior is an important performance in handling stability especially for the intercity bus. Accordingly, one of significant parameters concerns weight distribution which affected by center gravity (CG). In this paper, effect while varying turning radius compared and it should be expressed, interpreted understeer gradient influenced location CG. characteristic bus was modeled evaluated using multi-body dynamic analysis software. has been conducted under steady state...

This study proposes a parametric design and optimization technique for alloy wheels based on dynamic cornering fatigue test. A case of 13-inch diameter was considered the standard The effect width thickness wheel rim principal stress life minimizing weight is described each scenario. total twenty-seven experiment are created expanded in response surface sensitivity analysis using Finite Element Analysis (FEA) software. geometric parameter reveal to life. significantly displayed higher than...

Total knee replacement is a standard surgical treatment used to treat osteoarthritis in the knee. The implant complicated, requiring expensive designs and testing as well intervention. This research proposes technique concerning optimal conformity design of symmetric polyethylene tibial insert component for fixed-bearing total arthroplasty. Latin Hypercube Sampling (LHS) experiment was create 30 cases varied that influenced wear volume. combination finite element analysis surrogate model...

Recently, the Muscle-Computer Interface (MCI) has been extensively popular for employing Electromyography (EMG) signals to help development of various assistive devices. However, few studies have focused on ankle foot movement classification considering EMG at limb position. This work proposes a new framework two lower-limb position classify characteristics based normal walking cycles. For this purpose, we introduce human ankle-foot method using two-dimensional-convolutional neural network...

Interfragmentary movement (IFM) in bone formations during tibial shaft fracture stabilization is known to influence the outcome of healing, as well performance external fixation devices. Theoretically, construction stiffness a device, including pin insertion configuration, associated with stability. The objective this study investigate effect interfragmentary healing time using finite element analysis, particular regard for device. distance between and length on mechanical device was also...

The strength analysis of bus superstructure was extremely important that the manufacturer must take into account, especially in maximum stress as well construction stiffness. In this study, finite element (FE) model an intercity consisted chassis frame and body structure has been analyzed based on improved beam joint considerations. accuracy improvement type performed using equivalent stiffness T-junction modeling, then compared with shell volume elements. According to FE model, flexible...

The tibial insert conformity is one of the essential parameters concerned with contact stress distribution biomechanics characteristics in total knee arthroplasty (TKA). This study aimed to evaluate effect design on using Finite Element (FE) analysis. three-dimensional (3D) FE model posterior stabilized type TKA was analyzed according standard implant loading. 3k factorial experimental performed for response surface different curvatures consisting curve, partial flat, and flat sagittal...

Presently, large passenger vehicles are known to have high risk of an injury due accident and insufficient safety regulation. The strength seat is one important issues that affect level passenger. Therefore, suitable structure design the very prevent injuries life. This study was evaluate for bus according preliminary regulation Department Land Transport. Finite element analysis employed by using a static load. model simplified simulated. Stress impact scenario between seat-back back manikin...

Chassis strength and durability of local buses has been successively developed as many large automobiles due to reason for safe passenger transportation. This paper describes design method analysis chassis structure double deck bus. C-beam L-beam are created assembled frame by using CAD software. Finite element simulation is employed evaluate total deformation designed bus according reliable safety factor from engineering principle. Loading condition includes fully applied bending forces...

Since the vehicle accident is one of major causes dead and injury in Thailand, especially large passenger vehicle. The seat anchorage was often damaged lead to high number critical patient. To improve safety vehicle, should be investigated. aim this research analyze strength anchorages for bus according European standard ECE Regulation 80 using finite element method DOE(Design Experimental) approach. In study, boundary conditions on model structure were defined regulation. It expected that...