Jinan Yiu Cheung Trading Company during the cab strength, stiffness and subsequent analysis of passive safety in the heavy truck cab 4 point suspension imposed restraint stiffness and damping suspension, suspension and chassis cab applying a fixed connection point constraints to simulate the actual vehicle cab suspension system support and restraint conditions. Analysis of the cab to work in the most severe operating conditions under load BIW structural strength and stiffness, lightweight design as the basis for comparison after the original cab. Heavy truck cab in steady rotation, acceleration and braking conditions, the maximum stress is less than the corresponding material allowable stress, structural strength to meet the requirements; maximum deformation to meet the design requirements. On the basis of the cab BIW finite element model, the establishment of a topology optimization analysis model cab BIW. Delong cab fixed solution. The connector in the form of actual Delong cab structure, the position of the front axle and the rear frame rails connecting the anchor point, and specially designed clamp, Delong cab floor and the frame vertical in beam at the connection point near the front of the bolt holes, use the connection with the original car and its white body stiffness test stage beam rigidly fixed; Similarly, after Delong cab stringer anchor at Shandong Heavy Duty Truck Cab By coupling its rigidly fixed in the body stiffness test bed beams. Body rigidity has two dedicated test bench for long rail test bench, the trial stage Department has a T-shaped beams and rear rotatable bracket can be moved along the guide rail bracket crossbar after China's heavy truck cab, the cab Delong installation can be achieved heavy truck cab height adjustable, angle adjustable, adjustable front and rear left and right positions. Delong cab fixed to the test bench, the left and right front leveling Delong cab, so the axis and the test bench unanimously reversed beam centerline. When the torsional stiffness of the test, the former T-shaped bracket beam angle of rotation around its center, while the bending stiffness test, the former T-shaped bracket plus double-column support beam is level. Heavy truck cab accessories, Jinan Yiu Cheung (certified), heavy Steam cab provided by Jinan Yiu Cheung Trading Company. Jinan Yiu Cheung Trading Company (www.jinanyaoxiang.com) Shandong Jinan, engine assembly leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Jinan Yiu Cheung leadership with the staff warmly welcome all inquiries negotiations to create Jinan Yiu Cheung a better future.