Beam deflection machine. Search for used beam bending machines.

Beam deflection machine The dataset for three boundary condition of beam was generated in excel using the principle of superposition of forces. , 2018). A beam bending machine, also known as the names, H-beam bending machine, I-beam bending machine, and I-beam bender is the special equipment for processing tunnel steel arch support. Metal bending machines can bend sheet metal into a variety of shapes, including angles, flanges, and curves. The finite element method is implemented using Python with the numpy library and plot are made using matplotlib. It’s crucial for ensuring that structures can withstand loads without excessive bending, which could lead to structural failure. Raagen Rotating Bending Fatigue Testing Machines are intended to determine the fatigue strength (according to DIN 50113, ASTM F1160, EN 13261 and ISO 1143) in rotational bending fatigue tests of metallic or non-metallic materials. ,Ltd Inquiry Beam Deflection. Shear Stress: The stress induced in a material due to shear forces. One of the most important applications of beam deflection is to obtain equations with which we can determine the accurate values of beam deflections in many practical cases. Ø Deflection of a cantilever including propped cantilever Ø Fixing moment for a built-in beam Ø An English Instruction Manual consisting of Experimental Procedure, etc, will be provided along with the apparatus. Please note that SOME of these calculators use the section modulus of the Conduction type welds can be used e. Bending tests are used to determine the tensile strength of materials when the material is too brittle to test using a uniaxial tension test. Apr 27, 2019 · A rotating bending fatigue testing machine was developed by keeping in mind the basic concepts of technical theory of bending of elastic beams. Electrostatic focusing. These bends are essential for creating metal parts and components. Deflection of Beams The deformation of a beam is usually expressed in terms of its deflection from its original unloaded position. The beam bending machine is the special equipment for processing steel arch supports. It's commonly used for bending I-beam, H-beam, channel steel, angle steel, U-steel, and other materials. 8, 2009 BendmakUSA offers high quality Metal Fabricating Machinery from cutting edge technology to Plate Rolls, Profile (Angle) Bending Rolls, Pipe-Bending, Plate Processing, Positioning and Welding machinery. Cantilever Beam equations can be calculated from the We specialize in providing efficient and affordable bending and forming machines to accurately and economically manufacture simple and complex machine parts in any form. Feb 18, 2025 · To address these issues, this study employs an extreme learning machine to predict deflection in plain cement concrete beams, steel-reinforced cement concrete beams, and bamboo-reinforced concrete beams. Instrumentation. There are a range of equations for how to calculate cantilever beam forces and deflections. 1. The electron beam is capable of welding workpieces with thicknesses from 0. Jan 9, 2022 · What is the purpose of a bending test? The purpose of a beam bending test is to understand how different beams respond to loading. A single steel beam and two load hangers are supplied together with two analogue dial gauges for measuring beam deflections and slopes. Models available: May 23, 2024 · Applications of Metal Bending Machines. Electromagnetic focusing. The Beam Apparatus allows an extensive range of experiments to cover virtually all course requirements relating to bending of beams. It includes five different test beams. Gulf States Saw & Machine Co. Widely used for measuring deformations in three- and four-point bend tests, compression tests and a variety of general-purpose deflection measurements. Name two methods of focusing the electron beam. Welcome to Henan Sinch Machinery Co. The SUNRISE hydraulic bending machines – HBM, are available in either 45 or 82 tons, with a 8″ x 1/2″ or 12″ x 1/2″ capacity, and offer a wide range of tooling for different bending operations. The beam is rectangular, 25 mm thick and 100 mm high, and made of steel. Using the method of singularity function, determine the equation of the elastic curve of the beam, the slope at the free end, and the deflection at the free end. 6a. May 11, 2008 · Levering the beam round is not a good idea, unless the bend area has been made softer than the rest of the beam, it will not end up as a uniform bend. The deflection formula for the beams is shown in Table 1. In the heart of Kuala Lumpur, Malaysia, Amiruddin Rahman faced a challenge that every steel fabricator dreads—efficiency bottlenecks. How is this done? By lowering the beam power and either defocusing the beam and/or widening the beam by using deflection pattern. Weight set included. Calculating the deflection of beams helps engineers ensure that structures can bear loads safely without excessive deformation, which could compromise structural integrity. Taken from our beam deflection formula and equation page. This code can be easily modified for other boundary conditions or loads. You have a variety of instrumentation available with each set of apparatus. Pipe Bending. This gives rise to a few fundamental concepts you should know about: E-Beam Field and Machine Grid First, an e-beam field is the amount of area the electron beam can scan across. Beam AB supports a uniformly distributed load w. The elevator machine beams are provided by the elevator contractor. The maximum moment at the fixed end of a UB 305 x 127 x 42 beam steel flange cantilever beam 5000 mm long, with moment of inertia 8196 cm 4 (81960000 mm 4), modulus of elasticity 200 GPa (200000 N/mm 2) and with a single load 3000 N at the end can be calculated as There are many types of beam bending machines available, such as the hydraulic beam bender, beam bending rolls, CNC beam bending machines, and more. Sep 10, 2010 · This is the deflection equation for the cantilever beam. Beam deflection means the state of deformation of a beam from its original shape under the work of a force or load or weight. These lenses allow precise control over the beam’s path, crucial for imaging and interaction with materials. No load acting specifically at point A! More buckling examples Shock loading = sudden loading Examples? Test beams, two knife edges, built-in support, three load hangers and stirrups, position indicator, slope indicator, two dial gauges reading to 0. BEAMS: STRAIN, STRESS, DEFLECTIONS The beam, or flexural member, is frequently encountered in structures and machines, and its elementary stress analysis constitutes one of the more interesting facets of mechanics of materials. A pack of ten additional beams (SM1004a) is available for further experiments. com Nov 1, 2022 · Large deflection of a slender straight beam under beam-end loading: in Fig. For this reason, the analysis of stresses and deflections in a beam is an important and useful topic. May 18, 2019 · When load is applied on beam, its produce bending moment in beam by apply shear force across its cross section area. Yes. Guided Practice Problem 1 (Deflection of Beams) Determine the maximum deflection of a simply supported beam carrying a hydraulic cylinder in a machine used to press bushings into a casting, as shown in Figure 9-7. 5. Jan 1, 2021 · The paper presents experimental and theoretical large deflection analysis of non-uniformly curved beam with moving boundaries under static loading within elastic domain. influenced by electromagnetic fields. -lbs. This research work addresses the problem by developing a low-cost rotating bending fatigue testing machine. Metal bending machines can also bend pipes and tubes into complex shapes. Sheet Metal Bending. May 27, 2017 · On the other hand, for a steel spring in a machine it might be "unacceptable" if you can only coil it into 20 complete turns around an axle, if 30 turns is required. Aug 24, 2024 · Electrons stimulated by an electric field are then focused into a thin beam in the focusing coil. Explanation Calculation Example: The deflection of an overhanging beam with a uniformly distributed load is given by the formula delta = (w * L^4) / (8 * E * I), where w is the distributed load, L is the length of the Nov 24, 2023 · Cantilever Beam Equations. A beam is a member subjected to loads applied transverse to the long dimension, causing the member to bend. You can find comprehensive tables in references such as Gere, Lindeburg, and Shigley. 1 Deflections in beams Theoretical deflection at the free end of a cantilever beam is given by the expression 2. This is a Structural Beam Deflection, Stress Formula and Calculator: The follow web pages contain engineering design calculators that will determine the amount of deflection and stress a beam of known cross section geometry will deflect under the specified load and distribution. The processed steel arch can be widely used in the construction of railways, highways, and hydraulic tunnels, as well as bridges, and some large factory buildings. (2. M = maximum bending moment, in. Design of timber roof beams; Buckling design of timber columns; Do you miss any deflection formulas for beams that we forgot in this article? Let us know in the comments ️ Aug 18, 2009 · Material Type: Notes; Professor: Wei; Class: Static Machine Components; Subject: ME-Mechanical Engineering; University: University of Alabama; Term: Spring 2009; Jan 1, 2022 · With this method, the deflection of the cantilever beam can be precisely estimated regardless of the load conditions and deflection modes. Students design, construct, and test their bridges and do corresponding beam deflection calculations to verify the beam deflection type. The project spans design, analysis, construction, and validation testing of a metal bridge. The high price of these machines is a downside to its use. 18-20 HP. where x and y are the coordinates shown in the figure of the elastic curve of the beam under load, y is the deflection of the beam at any distance x. Example - Cantilever Beam with Single Load at the End, Metric Units. Control Panel. The Beam Deflection Unit, "MFV", enables the student to demonstrate the fundamentals of bending by studying the deflection produced in metallic flat bars, which simulate the behavior of beams, subjected to different loads. For example, because we have more sizes of beam bending machines to choose from than any other company, we can minimize trim and obtain a greater yield from the raw steel material. The configuration assumed by the deformed neutral surface is known as the elastic curve of the beam. • This method is done to lay down a uniform focusing on beam deflections has been designed for strength of materials students. X. Operating on a simple lever arm principle, the unit consists of a Reference Beam, Body, two part Probe Beam and Rear Zero adjust. The beam specimens are made from either aluminium or stainless steel and are 20mm wide with either a thickness of 3 or 5mm. Pavement surface deflection measurements are the primary means of evaluating a flexible pavement structure and rigid pavement load transfer. Special designs allow section bending of materials with even bigger yield strength. July 2022; Mechanism and Machine Theory 177(3) Mechanism and Machine Theory. Why is the deflection coil provided for electron beam machining? The electromagnetic deflector coil is used to deflect the electron beam to a different spot on the workpiece. TRUMPF bending machines represent a wealth of experience and pioneering innovation. Jun 6, 2023 · If you are new to structural design, then check out our design tutorials where you can learn how to use the deflection of beams to design structural elements such as. By providing a calculated curvature to the bed or ram, crowning maintains uniform force distribution throughout the bending process, counteracting the natural tendency of Nov 1, 2022 · As summarized in the current literature, previous numerical frameworks, such as beam-theory-based chained-algorithms and solid-mechanics-based or beam-theory-based FEM, for characterizing the large deflection of slender beams need to solve a large number of unknowns [18], [19], which can be regarded that they all aim to locally approximate the (When beams are run through any bending machine there is a straight tangent on both ends of unrolled material that must be trimmed off before the final application. The most common bending tests include cantilever, 3- and 4-point bending. SkyCiv Beam tool guides users along a professional beam calculation workflow, culminating in the ability to view and determine if they comply with your region's Design Codes. Understand the slope and deflection concept, but because it is tedious, use tables like Hamrock Appendix D or a handbook to determine beam deflections. Rotation and Deflection for Common Loadings An unlimited range of beam experiments can be performed to measure support reactions, deflections and rotations of simply supported, fixed and two span CONTINUOUS and INDETERMINATE BEAMS Three piers measure vertical reaction forces with their integral load cell which connect directly to the HDA200 Interface (sold separately). Curved beams represent an important class of machine members which find their application in components such as crane hook, c – clamp, frames of presses etc. Suitable to measure the deflection on both sizes of fibre-reinforced concrete beams 100x100x400 mm (or longer) and 150x150x500 mm (or longer). Manufacturer: Roundo; 2" x 2" x 1/4" ROUNDO HYDRAULIC HORIZONTAL ANGLE BENDING ROLL New 2006, Serial No 06815, Model SR-2 EQUIPPED WITH: Leg In - Leg Out Hydraulic Roll Adjustment Set of Rolls On Machine Hand Held Pendant Contro For nearly 50 years, STENHØJ has supplied the international heavy truck industry with fully automatic, high performance, bending machines for horizonal truck chassis beam offset bending. I Beam Bending Machine, also named H Cold Bending Machine, is widely used in the bending of I-beam, channel steel, and section steel in highway tunnels, railway tunnels, subway tunnels, road tunnels, water conservancy, hydropower diversion culverts, natural gas pipelines, communication pipelines, underground passages, and other projects. 2. Minor items include a ruler which you can use to accurately position the beam and the loads, a dial caliper to check beam dimensions and a digital camera which you can use to record your various set ups, and photograph items that you want pictured in your logbook. For clamped-clamped beams the deflections are calculated at the centre of the beam. Jan 1, 2012 · The deflection is measured with a dial gauge placed at the middle of the material (Pisačić et al. H Beam Bending Machine, For Industrial ₹ 9,00,000 Get Latest Price. 3, as the order of the used Taylor series increases, the final deformed beam shape converges to a fixed curve (marked as convergence line) where in particular 14 th-order series and 16 th-order series almost cover each other and both converge to the convergence line. Our benders can do it all! The tables below give equations for the deflection, slope, shear, and moment along straight beams for different end conditions and loadings. 38 EXTENSOMETER MODELS are available in many thousands of variations. 2 Elasctic Bending Theory For a uniform cross-section beam segment subjected to a bending moment, the theory of bending states that, M bending moment at a given position I second moment of area of section σ Jan 11, 2018 · Below we present a simple script for calculating the static deflection of a beam with a variety of boundary conditions and load types. . Recent machine developments make it possible even to go up to 200 kHz. Used beam deflection * Invitation Paper Cutting Laser Machine D escription e >>>>> HTJ-100w-3D is a new generation of laser marking and cutting machine designed Search for used beam bending machines. Chen [36] proposed an integral approach by using the moment integral treatment, unlike the elliptical integrals, which can be applied to problems of complex force load and variable beam properties such as Aug 9, 2024 · The primary purpose of crowning in press brake operations is to compensate for machine deflection and ensure precise, consistent bending across the entire workpiece length. Different specimens of 6mm to 8mm diameter of Jul 2, 2022 · Solutions to Large Beam-deflection Problems by Taylor series and Padé approximant for Compliant Mechanisms. Moment of Inertia: A geometric property of the cross-section that affects the beam’s resistance to bending. Find GMC, Cidan, Roper Whitney, Erbend, Schroeder, Schechtl, Bertsch, and Boldt for sale on Machinio. Beladi, PE Mechanics of Materials Lab P a g e | 1 Experiment Two – Beam Deflection Experiment Three (3) Tensile Stress Testing Introduction: The axis of the beam deflects from its initial position under action of applied forces. $\endgroup$ – alephzero Commented May 27, 2017 at 18:01 China H Beam Bending Machine wholesale - Select 2025 high quality H Beam Bending Machine products in best price from certified Chinese Machine For Metal manufacturers, Machine Equipment Control suppliers, wholesalers and factory on Made-in-China. This equipment uses digital display encoder programming to make the hydraulic operating system accurate, forming the bent The Beam Apparatus allows an extensive range of experiments to cover virtually all course requirements relating to the bending of beams. Many structures can be approximated as a straight beam or as a collection of straight beams. We have discussed the beam deflection formula for cantilever beam under UDL example. Adjusted for direct read Leveling wheel: Elevation adjustment The test is performed by applying a flexural load to the concrete beam in displacement control and with automatic deflection measurement of the loaded specimen. 2 Background Theory 2. Size. The performance of extreme learning machine is compared with support vector regression and artificial neural networks. The processed steel arch can be widely used in the construction of railways, highways, and hydraulic tunnels. The stress analysis of the critical section of the curved beam is a crucial step in its design. Beam reacts against this bending moment and shear force according to its moment of inertia. The elevator machine beams and the related structural support deflection cannot exceed L (the length of the beam)/1666. Specialized Torsion System for Rotating Beam Testing How it Works. Use Superposition to handle combined loadings (including loads in different planes, like Horiz & Vert). Our calculator generates the reactions, shear force diagrams (SFD), bending moment diagrams (BMD), deflection, and stress of a cantilever beam or simply supported beam. These strain gaged devices come with a magnetic base for easy mounting. Custom tooling is also available. The rigidity is controlled by the elevator code. YG-WGJ250 I-beam bending machine. For cold bending without a properly designed machine you need to push a former at the center point of your bend with the beam held back at two points equidistant on either side. To perform a test with ADMET’s Rotating Beam Tester, a sample is placed in the machine and a force is applied via a bending moment from a secondary actuator. Pattern Generator - A Unique Welding Parameter Feb 17, 2024 · Popularity: ⭐⭐⭐ Overhanging Beam Deflection Calculator This calculator provides the calculation of deflection for an overhanging beam with a uniformly distributed load. Preliminary loads may also be provided by a sales person or consultant and compared to submittal data. Oct 6, 2024 · This acceleration increases their kinetic energy, resulting in a high-speed electron beam. The Euler Bernoulli beam theory equation is simple and widely applied beam theory useful for calculation of beam deflection and other important beam parameters. Usage/Application The improved Benkelman Beam is a convenient, accurate device for measuring the deflection of flexible pavements under moving wheel loads. The deflection is measured from the original neutral surface of the beam to the neutral surface of the deformed beam. Bending beams and channels on the hard-way require a strong bending force because the section modulus along the x-x axis is always very large. In simpler terms, beam bending refers to the shape of the beam, whereas deflection Jan 27, 2025 · 3. Top-mounted operating switch for easy use. The basic unit provides facilities for supporting beams on simple, built-in and sinking supports, applying point loads, and measuring support reactions and beam deflections. The supports can be used in a fixed configuration where a clamping plate is used to hold the beam in place, simulating a fixed support. The current device allows for the cyclic testing of high-strength metal specimens with a gauge diameter of 32 mm and a gauge length of 100 mm at a load - ing frequency of up to 48 Hz. offers the Voortman V2000 Beam Cambering Machine for bending or straightening beams with precision. Requires 4 "D" size batteries Dial indicators: Ordered separately. The deflection coil moves the electron beam along the weld. It can also be used to control the path of the cut. Conclusion. g. Jul 15, 2016 · The results show the effectiveness of using artificial neural network for predicting the deflection of reinforced concrete beams, compared with the results of calculations conducted in accordance 2" x 2" x 1/4" ROUNDO "SR-2" HYDRAULIC HORIZONTAL ANGLE-BENDING ROLL. The extensive portfolio includes machines for die and panel bending technologies as well as large format bending machines and fully automated solutions. 1-877-724-7297 Menu Pedrick’s structural bending machines can be used for anchor bolts, channel, rectangular tube and bar stock, i-beam and more. Dr. Beam bending machine, also called an I-beam bending machine, or H-beam bending machine, is a device that bends steel materials into different arcs. The force induces a surface stress that will be tensile on one side of the sample and compressive on the opposite side. Jun 8, 2010 · “Calculating Deflections in Stepped Shafts and Nonuniform Beams,” Machine Design, July 6, 1961 “Shoulder-Fillet Stress Finesse,” Machine Design, Jan. This tangent equates to the length of the rolls as when the steel is fed through it cannot start curving immediately until it’s past the roll diameter on either side). Blanks the beam, to stop exposing the sample, so that the beam can then be re-positioned at the starting pixel of the next shape to e exposed. The dial gauges are mounted on movable stands for accurate position along the beam length. Feb 19, 2025 · To address these issues, this study employs an extreme learning machine to predict deflection in plain cement concrete beams, steel-reinforced cement concrete beams, and bamboo-reinforced concrete beams. Beam Deflection. for cosmetic paths to smoothen the top bead of key hole welds in a subsequent operation (Figure 3). Understand how to use slopes and rotations. import I beam bending machine can bend H beam or I beam from 100mm to 500mm. There is a wide range of options available for each bending technology to suit your specific application. 4m) aluminum beam telescopes into body Probe fulcrum: Provides lever ratio of 2:1, ball pivot bearing Vibrator system: Assures measurement accuracy. The theory governing the design of the fatigue machine is based on elastic beam bending theory [20]. Deflection measurement device for the deformation controlled determination of the flexural tensile strength of fiber reinforced concrete beam specimens This product allows the accurate determination of the specimen deflection applying third- or four-point loading beyond the load maximum, exclusive secondary deformation effects. Each group provides a technical Calculates the effect of beam bending depending upon the magnitude and location of the object placed on it. Y M o Dec 2, 2024 · Frequently Asked Questions (FAQs) about the Beam Deflection What is beam deflection, and why is it important? Beam deflection is the bending or displacement of a beam from its original position due to applied forces. 3. Although other measurements can be made that reflect (to some degree) a pavement’s structural condition, surface deflection is an important pavement evaluation method because the magnitude and shape of pavement deflection is a function of traffic (type approached with a large-scale rotating beam (bending) fatigue machine (RBFM). E is the modulus of elasticity of the beam, I represent the moment of inertia about the neutral axis, and M represents the bending moment at a distance x from the end of the beam. Flexural Stress: The stress induced in a material due to bending moments. History of Benkelman Beam • A. 6 inch to 12 inch H Beam Bending. Experimental values of fatigue life are confirmed using theoretical Å Beam Bending Machines Type BB allow the bending of the biggest commercially available beams over their x-x- and y-y-axes as well as tubes and flat bars with a bending capacity of up to 14 000 cm 3 . Beam deflection is a critical concept in structural engineering, as it refers to the bending or displacement of a beam under load. used. 01 mm) up to 6″ (150mm) of steel and up to 20″ (500mm) of aluminum. May 2, 2024 · Machine Learning Models for Predicting Flexural Behavior of FRP-Strengthened RC Beams May 2024 Passer Journal of Basic and Applied Sciences Volume 6(Issue 1):198-213 Frame is a robust, welded fabrication minimizing deflection and crowning issues; Extremely rigid upper beam for minimum deflection; Machine is flush floor mounted; no pit required; Multiple hard-chromed cylinder system; Built-in overload protection; Deep gaps inside frames for bending longer lengths with larger flanges; Quick approach and With 30 specialized beam bending machines between our Chicago and Kansas City plants, we can match the machine and the method to your specific requirements. STENHØJ bending machines are known and recognised worldwide for their high-quality bending geometry and high precision bends within fine tolerances. Beam bending focuses on the curvature induced in the beam, while deflection examines the overall displacement of the beam caused by the applied load. 4. 3 days ago · H beam cold bending machine I beam bending machine How a Malaysian Steel Fabricator Transformed His Business with a YG H-Beam Rolling Machine. The developed test device facilitates ecient SN-curve and fatigue limit measurement Beam Bending Machines Type BB allow the bending of the biggest commercially available beams over their x-x- and y-y-axes as well as tubes and flat bars with a bending capacity of up to 14 000 cm 3 . Electron beam welders use this characteristic to electromagnetically focus and very precisely deflect the beam at speeds up to 10 kHz. Using advanced technology, and efficient tools, we offer various profile bending and forming machines in UAE , which include NC and CNC Pipe Benders, standard tube and pipe Mar 6, 2023 · The elastic curve equation for a cantilever beam of length L at which end a load of magnitude P is applied at one end is given by: (6) y = P 6 EI ( x 3 − 3 Lx 2 ) EQUIPMENT / MATERIAL Hydraulic Load Machines Deflection gauges Vernier Caliper Steel, Aluminum and Brass Bars (Rectangular Cross-Section) PROCEDURE SIMPLY SUPPORTED BEAM 1. This section covers shear force and bending moment in beams, shear and moment diagrams, stresses in beams, and a table of common beam deflection formulas. Focusing: The electron beam is then shaped and focused using electron lenses. With today’s CNC controls, the beam focus as well as the beam deflection are part of the weld schedule The deflections are calculated at the tip of the beam for cantilever and overhang beams. Kareem (2012) reported that there are also various types of such apparatus produced and Apr 16, 2021 · A cantilever beam is loaded with a uniformly distributed load of 4 kips/ft, as shown in Figure 7. 004″ (0. Determine the deflection at A. CNC beam bender: This is a computer-controlled machine that possesses a multifunctional control system that can easily and precisely bend I-beams as per requirements. Moment of inertia of beam is its shape dependent property which shows the beam ability to resist bending moment applied on it. These can be simplified into simple cantilever beam formula, based on the following: Cantilever Beam Deflections. Power. S. By change mold, it can bend C beam/T beam/U beam/Rail beam or Steel pipes. • It is widely used all over the world evaluation of the requirements of strengthening of flexible pavements. Probe beam: 8 ft. C. The basic unit provides facilities for supporting beams on simple, built-in and sinking supports, applying point loads, and measuring support reactions and beam deflections. Moreover the combination of the large bending forces required by the process with the relatively thin thickness of the beam cause the deformation of the web itself. Beam Deflection: The displacement of a beam under loading, which is influenced by bending Description. Benkelmandevised the simple deflection beam in 1953 for measurement of pavement surface deflection. The slope or deflection at any point on the beam is equal to the resultant of the slopes or deflections at that point caused by each of the load acting separately. 01mm with supports, mm division scale. E. How To Calculate Beam Deflection? Following beam deflection formulas will help you out in determining the respective beam deflections for certain loads it carries: Simply-Supported Beam: Midspan Load: \(𝛿_{max}=\dfrac{PL^{3}}{48EI}\) Jan 6, 2005 · BEAM DESIGN FORMULAS WITH SHEAR AND MOMENT DIAGRAMS American Forest & Paper R = span length of the bending member, in. The force exerted during the pressing operation is 15 kN. While beam bending and deflection are interconnected, they represent distinct aspects of a beam’s behavior. pkskcmv leex yupzl vyti njrgrc xjnkh dby npo lfdmo qarvb bchen boz appie jxbrc lszpwmn