Piezoelectric materials can convert mechanical energy into electrical energy. These have the potential to provide reliable and cost-effective replacements of sources. It ultimately reduce fuel costs in vehicles. The use piezoelectric pneumatic tires enables capturing waste cars because deformations tires. An experimental setup was designed constructed simulate movement pressure inside tire a ca...

Parametric estimation of cause-specific hazard functions in a competing risks model is considered. An approximate likelihood procedure for estimating parameters of cause-specific hazard functions based on competing risks data subject to right censoring is proposed. In an assumed parametric model that may have been misspecified, an estimator of a parameter is said to be consistent if it converge...

Proyek infrastruktur jalan sebagian besar menggunakan alat berat. Alat berat harus digunakan secara efisien sehingga perlu mengetahui kemampuan alat, jenis-jenis keterbatasan serta biaya operasional alat. Produktivitas bergantung pada jenis atau tipe metode kerja, kondisi medan waktu yang diperlukan untuk menyelesaikan suatu pekerjaan. Penelitian ini bertujuan produktivitas jumlah proyek Palur-...

BACKGROUND: The method of reasonable selection an agricultural tractor tire set is a tool to compare and choose with the best properties, analyze features tire-soil interaction, evaluate feasibility installing proposed identify ways design improvement. relevance optimal for vehicles operating in agriculture related soil compaction by chassis that lead change its structure yield reduction. In ad...

A nonlinear model consisting “yaw, roll, longitudinal, lateral and pitch” has been developed in which, tire and suspension characteristics have been considered. Tire model is based on the elliptic concept and tire Calspan data. According to this tire model, cornering force and aligning moment are computed as a function of slip and camber (inclination) angles, normal load, tire adhesion characte...

Tire cavity noise refers to the vehicle noise due to the excitation of the acoustic mode of a tire air cavity. Although two lowest acoustic modes are found to be sufficient to characterize the cavity dynamics, the dynamical response of these two modes is complicated by two major factors. First, the tire cavity geometry is affected by the static load applied to the tire due to vehicle weight. Se...

250 words max) THE EFFECTS OF TIRE PRESSURE ON WHEELING EFFICIENCY Ian Denison, RPT; William C Miller PhD*, OT; Bonita J. Sawatzky, PhD^ BC Rehab, Vancouver Hospital, *School of Rehabilitation Science, UBC; ^Department of Orthopaedics, UBC 4255 Laurel Street, Vancouver, BC V5Z 2G9 Canada [email protected] INTRODUCTION This research project was undertaken to give clinicians information that...

i’ire behaviour plays a very important role in vehicle dynamic studies. Because of the complexity of tire structure, some tire models use so many assumptions they cannot represent tire behaviour well, while others are so complicated they are di@icult to use in engineering applications. This study presents an analytical tire side slip modeI with flexible tire carcass which is very helpful for un...