Results 81 to 90 of about 502,045 (198)

Cylindrical surface profile and diameter measuring tool and method [PDF]

A tool is shown having a cross beam assembly made of beams joined by a center box structure. The assembly is adapted to be mounted by brackets to the outer end of a cylindrical case. The center box structure has a vertical shaft rotatably mounted therein
Currie, James R., Kissel, Ralph R., Oliver, Charles E., Redmon, John W., Sr., Smith, Earnest C., Swanson, Charles P., Wallace, Charles C.   +6 more
core   +1 more source

Revolutionizing Concrete Bridge Assessment: Implementing Nondestructive Scanning for Transformative Evaluation

Applied Sciences
This study focused on analyzing the impact of ground-penetrating radar (GPR) scan spacing on accurately assessing the reinforcement of concrete bridge girders, providing practical insights.
Wael Zatar, Felipe Mota Ruiz, Hien Nghiem   +2 more
doaj   +1 more source

Design of Wheelset Axle Box for 1 435/1 000 mm Gauge-changeable Bogie

机车电传动, 2018
The gauge-changeable wheelset and the axle box is one of the key components of the gauge-changeable bogie. The characteristics, design requirement, design ideas and structure of the wheelset and axle box of the 1 435/1 000 mm gauge-changeable bogie were ...
CUI Hongwei, HUANG Zhihui, ZHOU Dianmai, XU Fang   +3 more
doaj  

Numerical and Experimental Study on the Effect of External Box Stiffeners for Rigid Connections of I-Beams to Concrete-Filled Circular Columns

Buildings
This study introduces an innovative connection to improve the seismic performance of I-beam–to–concrete-filled circular column joints. The concept employs a steel box with optimized internal and external stiffeners, eliminating continuity and doubler ...
Ary Shehab Jamil, Mehrzad TahamouliRoudsari, AllahReza Moradi Garoosi, Javad Esfandiari   +3 more
doaj   +1 more source

Structural optimization by generalized, multilevel decomposition [PDF]

The developments toward a general multilevel optimization capability and results for a three-level structural optimization are described. The method partitions a structure into a number of substructuring levels where each substructure corresponds to a ...
James, B. B., Riley, M. F., Sobieszczanski-Sobieski, J.   +2 more
core   +1 more source

Experimental Study on Fatigue Performance of Composite Box Girder With Steel Bottom Plate and Corrugated Steel Webs

Advances in Civil Engineering
In order to study the fatigue performance and fatigue failure mode of the composite box girder with steel bottom plate and corrugated webs (SBCSWs), the model beam was made and the constant and variable amplitude fatigue experiment were performed ...
Shijin Wang, Genhui Wang, Jiang Fan, Zichen Zhang   +3 more
doaj   +1 more source

RESEARCH ON THE COLLISION ENERGY ABSORPTION CHARACTERISTICS OF THE ENERGY-ABSORBING BOX FRONT ANTICOLLISION BEAM SYSTEM

Jixie qiangdu
The front anti-collision beam system is an important component to improve the safety of the whole vehicle.Among them,the structural parameters of the energy-absorbing box and the beam directly affect the crash resistance of the vehicle body.In order to ...
doaj  

Structural design and material comparison for aircraft wing box beam panel. [PDF]

Heliyon
Korba P, Al-Rabeei S, Hovanec M, Sekelová I, Kale U.   +4 more
europepmc   +1 more source

Experimental Investigation on the Bending Performance of Steel-Concrete Composite Beams After Creep. [PDF]

Materials (Basel)
Ding F, Dai Y, He X, Lyu F, Duan L.
europepmc   +1 more source

Beam commissioning of a new compact scanned proton therapy system with four different dose calculation algorithms. [PDF]

J Appl Clin Med Phys
Tanokura R, Horita M, Matsumoto M, Miyahara A, Furukawa S, Ido Y, Matsumoto A, Ogawa S, Makino W, Matsui Y, Tominaga Y, Kato T, Fuwa N.   +12 more
europepmc   +1 more source